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5-20 Basic Operation

PLZ-4W

5.10 Soft start

The PLZ-4W can be set to start up slowly of the input current of the PLZ-4W (soft
start) in the constant current (CC) mode and the constant resistance (CR) mode
when the applying voltage and the turning on the load at the same time, or when the
voltage applied with 0 V input of the load input while the load is turned on.
When the soft start time is appropriately set, the distortion of output voltage from
the DUT can be suppressed. Set the soft-start in accordance with the rise time of the
DUT.

Fig. 5-9

Difference in operation by the setting of soft start time

■

Procedure

Fig. 5-10

Keys used in soft start

1.

Check that the load is turned off.

Check that the LOAD LED is turned off. If it is on, press the LOAD key to turn
it off.

2.

Select the menu setup.

Press the MENU (SHIFT + SET/VSET) key.

The menu appears.

3.

Select Setup.

Press the or CURSOR key several times until Setup is highlighted on the
menu.
When highlighted, press the ENTER key.

Time

0

Time

0

When soft start time is inappropriate

When soft start time is appropriate

Rise time of the DUT
Rise time of the PLZ-4W

Input current

Input current

SWITCHING

ENTER

SHORT

EDIT

SLEW RATE

RUN / STOP

UVP

PAUSE

STORE

RECALL

A

B

C

LOAD

Th/TL

FREQ / DUTY

MENU

PRESET SEQ

I

LEVEL

VRANGE

RANGE

SW ON

+CV

MODE

LOAD

SET / VSET

LOCK

SHIFT

ABC

OPP / OCP

1.

Setu

p

2. Confi

g

uration

4. Model Info

PREV

NEXT

3. Calibration

Menu

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Summary of Contents for PLZ-4W Series

Page 1: ...Part No IB020912 Sep 2010 USERS MANUAL ELECTRONIC LOAD PLZ 4W Series PLZ 164W PLZ 164WA PLZ 334W PLZ 664WA PLZ1004W ...

Page 2: ...onal computer Please read through and understand the Operation Manual before operating the product After reading always keep the manuals nearby so that you may refer to it as needed When moving the product to another location be sure to bring the manuals as well If you find any incorrectly arranged or missing pages in the manual they will be replaced If the manual gets lost or soiled a new copy ca...

Page 3: ...lly hazardous situation which if ignored may result in damage to the product and other property Shows that the act indicated is prohibited Is placed before the sign DANGER WARNING or CAU TION to emphasize these When this symbol is marked on the product see the relevant sections in this manual Indicates a protective conductor terminal Indicates a chassis frame terminal OR WARNING CAUTION DANGER Saf...

Page 4: ...ome or consumer use Purposes of use Do not use the product for purposes other than those described in the operation manual Input power Use the product with the specified input power voltage For applying power use the power cord provided Note that the provided power cord is not use with some products that can switch among different input power voltages or use 100 V and 200 V without switching betwe...

Page 5: ...ual be included when the product is relocated Operation Check that the AC input voltage setting and the fuse rating are satisfied and that there is no abnormality on the surface of the power cord Be sure to unplug the power cord or stop applying power before checking If any abnormality or failure is detected in the products stop using it immediately Unplug the power cord or disconnect the power co...

Page 6: ...2 5 2 5 Grounding Earth 2 6 2 6 Turning on The Power 2 7 2 7 Checking the ROM Version 2 9 2 8 Load Wiring 2 10 2 8 1 Precautions Concerning Wiring 2 10 2 8 2 Connection to the Load Input Terminal on the Rear Panel 2 14 2 8 3 Connection to the Load Input Terminal on the Front Panel 2 17 Chapter 3 For First Time Users 3 1 3 1 What Is an Electronic Load 3 2 3 2 Basic Flow of Operation 3 3 3 3 Operati...

Page 7: ... the Auto Load Off Timer 6 13 6 6 Sequence Function 6 14 6 6 1 Overview of the Normal Sequence 6 15 6 6 2 Sequence Editing 6 18 6 6 3 Sequence Example Normal Sequence 6 21 6 6 4 Overview of the Fast Sequence 6 27 6 6 5 Fast Sequence Editing 6 29 6 6 6 Sequence Example Fast Sequence 6 31 6 6 7 Executing Pausing Stopping the Sequence 6 36 6 7 Remote Sensing Function 6 38 6 8 External Control 6 39 6 ...

Page 8: ...ion 7 10 7 4 Command Details 7 10 Chapter 8 Maintenance and Calibration 8 1 8 1 Maintenance 8 2 8 1 1 Cleaning the Panels 8 2 8 1 2 Cleaning the Dust Filter 8 2 8 1 3 Inspecting the Power Cord 8 3 8 1 4 Internal Inspection 8 3 8 2 Confirming status of the fuse 8 4 8 3 Calibration 8 5 8 3 1 Calibration Overview 8 5 8 3 2 Preparation 8 6 8 3 3 Calibration Procedure 8 7 8 4 Malfunctions and Causes 8 ...

Page 9: ... of Each Model A 15 A 3 1 Operating Area of the PLZ164W A 15 A 3 2 Operating Area of the PLZ334W A 16 A 3 3 Operating Area of the PLZ1004W A 17 A 3 4 Operating Area of the PLZ164WA A 18 A 3 5 Operating Area of the PLZ664WA A 19 A 4 Sequence Program Creation Table A 20 Index I 1 ...

Page 10: ...VIII Contents PLZ 4W ...

Page 11: ...PLZ 4W General Information 1 1 Chapter 1 General Information This chapter gives an overview and introduces the features of the PLZ 4W Series Electronic Loads 1 1 ...

Page 12: ... ROM Version 1 2 Product Overview The PLZ 4W Series Electronic Load is a multifunctional system designed to offer the highest levels of reliability and safety The electonic load contains a stable and high performance current control circuit that enables high speed load simulations In addition its CPU control feature works to improve operability and multifunc tional capability The high precision cu...

Page 13: ... operating voltage 1 Operating range of 1 5 V to 150 V PLZ 4W and PLZ 4WB 2 Operating range of 0 V to 150 V PLZ 4WA Electronic load Load booster Model Maximum Operating Current A Operating Voltage V Wattage W PLZ164W 33 1 5 to 150 165 PLZ334W 66 330 PLZ1004W 200 1 000 PLZ164WA 33 0 to 150 165 PLZ664WA 132 660 Model Maximum Operating Current A Operating Voltage V Wattage W PLZ2004WB 1 1 PLZ2004WB i...

Page 14: ...recision is offered for current settings Resolution at low current settings is provided using a 3 range configuration A 0 01 mA resolution is possible at the L range of the PLZ164W Operability The PLZ 4W employs a large LCD Measured values of voltage current and power at the load input terminal are indi cated at all times The values are indicated using larger characters than other sec tions to imp...

Page 15: ...o turn off the load after a specified time elapses you can measure the closed circuit voltage after a specified time elapses from the start of battery discharge voltage measurement Load booster To achieve large capacity at low cost the PLZ1004W comes with a load booster PLZ2004WB Using a single PLZ1004W as a master unit up to four load boosters can be con nected in parallel 9 kW 1800 A maximum Sta...

Page 16: ...oarse and fine adjustments using the rotary knob are useful for setting values over a wide range Fig 1 1 Panel control External communication interface The PLZ 4W can be controlled from a PC GPIB RS232C and USB communication functions come standard Fig 1 2 PLZ 4W and PC connection diagram PROTECTIVE GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND DO NOT REMOVE COVERS REFER SERVICING TO QUALIFIED P...

Page 17: ... parallel operation without using load boosters up to five electonic loads of the same type including the master unit can be connected in parallel 5 kW 1000 A maximum Fig 1 3 Parallel connection Master PLZ1004W Master PLZ1004W Master Slave Load booster PLZ2004WB Slave PLZ1004W Up to four PLZ2004WBs can be connected Up to five PLZ 4Ws of the same type as the master device can be connected PLZ 4W ot...

Page 18: ...r in their length The 550 mm PC02 PLZ 4W is required to connect the master unit and the load booster Analog remote contorol connector kit OP01 PLZ 4W A kit for connecting to the J1 J2 connector Model Code Length Application PC01 PLZ 4W 84540 300 mm Connect between the master unit and the slave unit load booster and between slave units PC02 PLZ 4W 84550 550 mm Connect between the master unit and lo...

Page 19: ...acket Item Model Applicable Model Note Rack mount frame Fig 1 4 KRA3 PLZ164W PLZ334W PLZ164WA Inch rack EIA standard KRA150 Milli rack JIS standard Rack mount bracket Fig 1 5 KRB3 TOS PLZ664WA PLZ1004W Inch rack EIA standard KRB150 TOS Milli rack JIS standard KRA3 KRA150 132 5 5 22 57 2 24 37 75 1 49 149 100 24 5 465 18 31 482 18 98 460 480 KRB3 TOS KRB150 TOS 149 100 24 5 460 479 132 5 20 57 2 24...

Page 20: ...1 10 General Information PLZ 4W ...

Page 21: ...PLZ 4W Installation and Preparation 2 1 Chapter 2 Installation and Preparation This chapter describes the procedures of unpacking and preparation before using the PLZ 4W 2 2 ...

Page 22: ...g 2 1 Accessories NOTE Load input terminal cover 1 pc Lock plate 2 pcs J1 J2 protection dummy plug 2 pcs Attached to the product Set of screws for the load input terminal 2 sets Power cord 1 pc The power cord that is provided varies depending on the destination for the product at the factory shipment Q1 500 085 P2 000 228 M1 100 012 M5 101 007 M4 100 007 84 49 0071 85 AA 0003 85 AA 0005 Rated volt...

Page 23: ...nit until the condensation dries up completely Do not place the unit in a corrosive atmosphere Do not install the unit in a corrosive atmosphere or in environments containing sul furic acid mist etc This may cause corrosion of various conductors and bad con tacts of connectors inside the unit leading to malfunction and failure or in the worst case a fire However operation in such environments may ...

Page 24: ...re adequate space around the power plug Do not insert the power plug to an outlet where accessibility to the plug is poor And do not place objects near the outlet that would result in poor accessibility to the plug 2 3 Precautions When Moving the Unit When moving the unit to the installation location or when transporting the unit note the following points Turn off the POWER switch Moving the unit ...

Page 25: ... difficult contact Kikusui distributor agent Do not use the power cord that comes with the product as a power cord for other equipment Fig 2 2 Power cord with a three pin plug 1 Check that the AC power supply is within the input power supply range of the product Input voltage range 100 VAC to 240 VAC 100 V to 120 V and 200 V to 240 V for the PLZ164WA and PLZ664WA Frequency range 47 Hz to 63 Hz 2 C...

Page 26: ...ng in addition to the basic insulation Be sure to connect the protective ground terminal to an appropriate earth ground If you do not ground the product malfunction may occur due to external noise or the noise generated by the product may become large Make sure to ground the unit for your safety Connect the power cord to a three pin power outlet with proper grounding WARNING CAUTION Three pin outl...

Page 27: ...layed using large numbers section with mA V and W unit indicates coarse zero Overview of the procedure Carry out this procedure without connecting anything to the DC INPUT load input terminal Turn on the POWER switch and then operate the LOAD key At the end turn off the POWER switch If an alarm occurs during operation see section 5 3 Types of Protection Functions Preparation Main operation Unit be...

Page 28: ...n the power is turned off When the power is turned on the next time the PLZ 4W returns to the conditions that were backed up To prevent malfunction allow at least 5 s between power cycles If the PLZ 4W does not operate as described in the procedure If one of the following conditions applies to your case carry out the corresponding procedure If the condition does not change even after taking the co...

Page 29: ...7 Checking the ROM Version Fig 2 6 Model Information screen PLZ164W 1 Press the MENU SHIFT SET VSET key The menu screen is displayed 2 Use the CURSOR key to select 4 Model Info The selected section is highlighted 3 Press the ENTER key The Model Information screen of Fig 2 6 is displayed 4 Press the MENU SHIFT SET VSET key to close the menu Firmware Version ROM Version ...

Page 30: ...s large a large voltage drop may occur when a cur rent is supplied and the voltage at the load input terminal may fall below the mini mum operating voltage Refer to Table 2 1 and select thick wires as much as possible Table2 1 Nominal cross sectional area of wires and allowable currents Nominal Cross Sectional Area mm2 AWG Reference Cross Sectional Area mm2 Allowable Current A Ta 30 C Kikusui Reco...

Page 31: ...mately 1 μH per 1 meter If the 10 meters of load cables is wired between the EUT and the PLZ 4W with the current variation of 10 A μs the voltage generated by the wire inductance will be 100 V The negative polarity of the load input terminal is the reference potential of the external control signal therefore the device connected to the external control termi nal may get malfunctioned When operatin...

Page 32: ...ire possible to keep the voltage caused by inductance within the minimum operating voltage and maximum input voltage range or set a low slew rate If the high speed response operation is not required set the lower response speed and decrease the slew rate setting In the case of DC operation also the phase lag of the current may cause instability in the PLZ 4W control inducing oscillation In this ca...

Page 33: ...C Voltage exceeding the maximum cannot be used If overvoltage is applied an alarm message appears along with a beeping alarm and the load is turned off In this case immediately lower the voltage of the equipment under test Polarity If the polarity is reversed overcurrent may damage the EUT and PLZ 4W Be sure to match the polarities between the load input terminal and the equipment under test Fig 2...

Page 34: ...ch the thickness of the wire Use trial and error so that you don t cut too much of the sleeve Fig 2 13 Load input terminal cover Attaching the lock plate The lock plate is used to fix the load input terminal cover to the rear panel Once attached you do not have to remove it When using the load input terminal cover for the first time attach the lock plate in advance Fig 2 14 Attachment of the lock ...

Page 35: ...heat Attach crimping terminal to the wire and use the set of screws that came with the package for connection 1 Turn off the POWER switch 2 Check that the output of the equipment under test is off 3 Connect the load wire to the load input terminal on the rear panel Use the load input terminal cover See Fig 2 13 on how to use the cover For the connection procedure of the load wire see Fig 2 15 4 Fi...

Page 36: ...eft and right and remove the pin from the hole of the cover Move the cover until the edge touches the panel and pinch the section indicated by the arrow to raise the side surface With the side surface of the cover raised insert the lock plate pin into the hole Top view Check that the left and right lock plate pins are securely inserted in the cover holes ...

Page 37: ...when the load is turned on There is a danger of overheat Attach crimping terminal to the wire and use the set of screws that came with the package for connection The specifications of the PLZ 4W are for the load input terminal on the rear panel The maximum input current to the load input terminal on the front panel is 66 A It is automatically limited to 66 A 1 Turn off the POWER switch 2 Check tha...

Page 38: ...2 18 Installation and Preparation PLZ 4W ...

Page 39: ...For First Time Users 3 1 Chapter 3 For First Time Users This chapter describes for first time users the operation modes of the PLZ 4W and matters that users should be familiar with in operating the PLZ 4W 3 3 ...

Page 40: ...the load tests of power supplies with large load fluctuation such as a power supply for a printer in a condition that is close to the actual load Fig 3 1 PLZ164W 1 5 V input type PLZ164WA 0 V input type and PLZ334W 1 5 V input type Fig 3 2 PLZ664WA 0 V input type and PLZ1004W 1 5 V input type SWITCHING 165W ELECTRONIC LOAD 1 5 150V 0 33A PLZ164W ENTER SHORT EDIT SLEW RATE RUN STOP UVP PAUSE STORE ...

Page 41: ... front panel and the air outlet on the rear panel Always ground the PLZ 4W Be sure to earth ground the PLZ 4W before turning on the power to prevent electric shock Precautions to be taken when connecting the equipment under test Be sure to turn off the power when touching the load input terminal front and rear panels or when connecting the load Be especially careful of the polarity of the connecti...

Page 42: ... the LOAD key when the load is turned off the LOAD LED illuminates and the load turns on If you press the LOAD key when the load is turned on the LOAD LED turns off and the load turns off There is a danger of breakdown Turn off the load when applying the out put of the equipment under test to the PLZ 4W Then turn the load on If you are making the connection with the load turned on be sure to turn ...

Page 43: ... save three separate sets of settings of each range of each oper ation mode The setup memory can save 100 sets of the current setup condition and the contents of the ABC preset memories in that condition The information saved to the memory is backed up even when the power is turned off the information is saved until the PLZ 4W is initialized For a description of the ABC preset memories see section...

Page 44: ... the range rating If the input voltage is gradually increased from 0 V no current will flow until 0 3 V is exceeded Once a current greater than or equal to 1 of the range rating When PLZ 4W is set by the M range greater than or equal to 1 of H range starts flowing the current can flow at voltages less than equal to 0 3 V If the minimum operating voltage L5 in the actual operating area is reached t...

Page 45: ... CC Mode In CC mode the current is kept constant even when the voltage changes CC mode operation When the PLZ 4W is used in CC mode the PLZ 4W operates as a constant current load as shown in Fig 3 4 The PLZ 4W sinks the specified current I independent of the output voltage of the constant voltage power supply V1 Fig 3 4 Equivalent circuit of the constant current load and operation Transition of th...

Page 46: ...PP is cleared and the operating status indicates C C The PLZ 4W returns to CC mode and the operating point moves along segment AB Table3 1 OPP action protect action Fig 3 5 Operation on segment CD If the voltage of the constant voltage power supply is set to V2 and the input current load current of the PLZ 4W is increased the operating point moves along segment CD Point D is the maximum current at...

Page 47: ...W Check that the LOAD LED is turned off If the LED is illuminated press the LOAD key to turn off the load When the load is turned ON you cannot switch the operation mode and range SWITCHING 165W ELECTRONIC LOAD 1 5 150V 0 33A PLZ164W ENTER SHORT EDIT SLEW RATE RUN STOP UVP PAUSE STORE RECALL A B C LOAD Th TL FREQ DUTY MENU PRESET SEQ I LEVEL VRANGE RANGE SW ON CV MODE LOAD SET VSET LOCK LOCAL CURS...

Page 48: ... can press the rotary knob to switch between coarse adjustment and fine adjustment First use coarse adjustment to roughly set the value and then switch to fine adjustment to adjust the value precisely 6 Set the OPP value Press the OPP OCP key to illuminate the OPP OCP key and show the OPP value on the display While viewing the display turn the rotary knob You can press the rotary knob to switch be...

Page 49: ...PLZ 4W Names and Functions of Parts 4 1 Chapter 4 Names and Functions of Parts This chapter describes the names and functions of switches connectors and dis plays on the front panel and rear panel 4 4 ...

Page 50: ...taneously as it cause damage Avoid using the PLZ 4W in a dusty environment or an environment with poor ventilation Do not obstruct the air intake on the front panel and the air outlet on the rear panel Fig 4 1 Front panel PLZ164W WARNING CAUTION SWITCHING 165W ELECTRONIC LOAD 1 5 150V 0 33A PLZ164W ENTER SHORT EDIT SLEW RATE RUN STOP UVP PAUSE STORE RECALL A B C LOAD Th TL FREQ DUTY MENU PRESET SE...

Page 51: ...lter is furnished on the inside Clean the dust filter periodically For details see section 8 1 2 Cleaning the Dust Filter 3 Handle Used to lift the PLZ 4W The handle is provided on the side panel on the PLZ1004W and the PLZ664WA It is provided on the top panel on other models 4 POWER switch Power switch of the PLZ 4W Push to turn on push to turn off Turn the POWER switch on while holding down the ...

Page 52: ...nvironment or an environment with poor ventilation Do not obstruct the air intake on the front panel and air exhaust on the rear panel with objects In particular allow at least 20 cm of space behind the PLZ 4W Fig 4 2 Rear panel PLZ164W WARNING CAUTION PROTECTIVE GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND DO NOT REMOVE COVERS REFER SERVICING TO QUALIFIED PERSONNEL TO AVOID ELECTRIC SHOCK THE ...

Page 53: ...f the PLZ 4W 6 GPIB connector Connector used to connect the GPIB cable when controlling the PLZ 4W externally For a description of the interface setup see section 7 2 1 GPIB Control 7 RS232C connector Connector used to connect the RS232C cable when controlling the PLZ 4W exter nally For a description of the interface setup see section 7 2 2 RS232C Control 8 USB connector Connector used to connect ...

Page 54: ...djustment appears on the screen You can traverse the full scale of values by turning the rotary knob ten and a few turns When set to fine adjustment appears The value changes at 1 10 of the rate of coarse adjustment Contrast You can change the display contract by turning the rotary knob while holding down the SHIFT key 3 CURSOR key Moves the cursor up and down or right and left when selecting an i...

Page 55: ... indicated above the key is enabled if you press a key while holding down the SHIFT key the function indicated below the key is enabled LOAD Fig 4 4 Operation panel LOAD 6 MODE CV key MODE Pressing this key when the load is turned off switches the operation mode Press the MODE key to show the operation mode pop up menu Each time you press the MODE key while the menu is displayed the operation mode...

Page 56: ...ssing the RANGE key when the load is turned off shows the range pop up menu Each time you press the RANGE key while the menu is displayed the range switches in the order L M and H You cannot select the range when the load is turned on or when the short function is enabled VRANGE Pressing this key while holding down the SHIFT key SHIFT RANGE switches the voltage range Pressing the VRANGE SHIFT RANG...

Page 57: ... cannot select switching mode when the short function is enabled For details see section 6 3 Switching Function 12 FREQ DUTY Th TL key FREQ DUTY Sets the switching frequency and duty cycle in switching operation This key illumi nates when you can set the switching frequency or duty cycle FREQ and DUTY settings switch each time you press the key Th TL Pressing this key while holding down the SHIFT ...

Page 58: ... the switching level in CV or CP mode PRESET SEQ Fig 4 6 Operation panel PRESET SEQ 14 RECALL STORE key RECALL Recalls the panel settings saved to the setup memory You cannot select this key when the load is turned on For details see section 6 2 Setup Memory STORE Pressing this key while holding down the SHIFT key SHIFT RECALL saves the current panel settings to the setup memory SWITCHING SHORT SL...

Page 59: ...y A EDIT Pressing this key while holding down the SHIFT key SHIFT A shows the sequence edit screen For details see section 6 6 Sequence Function 17 B RUN STOP key B Use this key to recall the settings stored in memory B or save the current settings to memory B RUN STOP Pressing this key while holding down the SHIFT key SHIFT B shows the sequence execution screen Pressing RUN STOP SHIFT B when sequ...

Page 60: ... time since the load was turned on By factory default the elapsed time display Count Time is turned off not shown To show the elapsed time turn it on from the menu settings You can also automati cally turn off the load after a specified time elapses after the load is turned on Cut Off For details of menu setup see section 5 13 Menu Setup 6 Operation mode display Displays the specified operation mo...

Page 61: ...PLZ 4W Basic Operation 5 1 Chapter 5 Basic Operation This chapter describes the operating procedure of each operation mode and other basic functions 5 5 ...

Page 62: ...djustment When you turn the rotary knob while pressing the LOCAL key in the coarse adjustment you can set the value more roughly Pop up menu operation Some keys show a pop up menu when you press the keys If you press the key again while the menu is shown the selected item switches Each time you press the key the selected item switches one by one to the next item When you finish the key operation t...

Page 63: ...connection between the load input terminal and the output terminal of the DUT turn on the relay or the electromagnetic switch 3 Press the LOAD key to turn on the load Load Off 1 Press the LOAD key to turn off the load 2 Turn off the output of the DUT In case the relay or the electromagnetic switch is used for the connection between the load input terminal and the output terminal of the DUT turn on...

Page 64: ...ns off after a specified time elapses after the load is turned on When the load turns off a pop up window appears indicating the input voltage at the time the load was turned off This function is useful in discharge tests of batter ies and capacitors For a description of changing the menu setup see section 5 13 Menu Setup Turning on or off the load externally You can also turn on or off the load u...

Page 65: ...y the REV set the operation mode to the CC CV mode then it is necessary to set the voltage value of the CV at lower than the voltage V specified in the Fig 5 1 when the current flows The alarm can not be avoided in the CC mode For the operation mode see section 5 5 Operation Modes 1 Turn off the DUT 2 Set the operation mode of the PLZ 4W to the CC CV mode 3 Set the voltage of the CV for approximat...

Page 66: ...this point the load is turned off LOAD OFF or the current is limited LIMIT To change the protect action select 1 Setup 2 Protect Action OCP and specify LIMIT or LOAD OFF When LIMIT is specified the alarm is cleared when the alarm condition is cor rected For a description of setting the overcurrent value see section 5 4 Setting the Protection Function For a description of changing the menu setup se...

Page 67: ...g with the DC power supply and the DUT in series see When the DC power supply and the DUT are connected in series and turning on off of the DUT PLZ164WA PLZ664WA only in section 5 2 Turning On or Off the Load Overheat protection OHP The protection trips when the temperature inside the power unit exceeds 95 C At this point the load is turned off Check whether the air intake on the front panel and t...

Page 68: ...ated in CP mode 2 Select OPP or OCP Press the OPP OCP key The OPP OCP key illuminates 3 Select the one you wish to set Select OPP or OCP OPP or OCP is highlighted each time you press the OPP OCP key Highlight the one you wish to set 4 Set the overpower or overcurrent value While viewing the display turn the rotary knob to set the value Setting the UVP When the input voltage that is equal to or fal...

Page 69: ... turned off Press the MODE key to show the operation mode pop up menu Each time you press the MODE key while the menu is displayed the selected item switches one by one to the next item When you finish the key operation the operation mode at that point is selected and the pop up menu automatically clears The operation mode is indicated on the dis play By pressing CV SHIFT MODE in CC mode or CR mod...

Page 70: ...hile the menu is displayed the range switches in the order L M and H When the desired range is highlighted stop pressing the key Along with L M or H the full scale value of the respective range is displayed This value varies depending on the model Overview of the procedure Select the operation mode and set the current value Turn on the load and change the current value Finally turn off the load to...

Page 71: ...s and the current flows The display shows the measured values voltage current and wattage at the load input terminal 7 Change the current setting Turn the rotary knob to change the current setting The current value cannot be set greater than the maximum value of the selected range 8 Turn off the load Press the LOAD key The LOAD LED turns off and the current is cut off Operating procedure of CC CV ...

Page 72: ...wing the display turn the rotary knob To switch between current and voltage settings press the SET VSET key 5 Turn on the load Press the LOAD key The LOAD LED illuminates and the current flows The display shows the measured values voltage current and wattage at the load input terminal 6 Change the current or voltage setting Turn the rotary knob to change the setting To switch between current and v...

Page 73: ...nu appears Press the MODE key repetitively until CR is highlighted on the menu After selecting the operation mode check that CR is indicated on the display Overview of the procedure Select the operation mode and set the resistance Turn on the load and change the conductance Finally turn off the load to cut off the current Preparation Main operation Unit behavior Check that the load is turned off S...

Page 74: ...nge is highlighted stop pressing the key 5 Set the conductance S Check that the display is in the basic setting entry condition the characters SET is highlighted While viewing the display turn the rotary knob First use coarse adjustment to roughly set the value and then switch to fine adjustment to adjust the value precisely When you press the SET VSET key the resistance calculated from the con du...

Page 75: ...ET is highlighted While viewing the display turn the rotary knob To switch between conductance and voltage settings press the SET VSET key 5 Turn on the load Press the LOAD key The LOAD LED illuminates and the current flows The display shows the measured values voltage current and wattage at the load input terminal 6 Change the conductance setting Turn the rotary knob to change the conductance set...

Page 76: ... switches in the order L M and H When the desired range is highlighted stop pressing the key Along with L M or H the full scale value of the respective range is displayed This value varies depending on the model Overview of the procedure Select the operation mode and set the voltage value Turn on the load and change the voltage value Finally turn off the load to cut off the current Preparation Mai...

Page 77: ...ile viewing the display turn the rotary knob First use coarse adjustment to roughly set the value and then switch to fine adjustment to adjust the value precisely 6 Turn on the load Press the LOAD key The LOAD LED illuminates and the current flows The display shows the measured values voltage current and wattage at the load input terminal 7 Change the voltage setting Turn the rotary knob to change...

Page 78: ...menu is displayed the range switches in the order L M and H When the desired range is highlighted stop pressing the key Along with L M or H the full scale value of the respective range is displayed This value varies depending on the model Overview of the procedure Select the operation mode and set the wattage Turn on the load and change the wattage Finally turn off the load to cut off the current ...

Page 79: ...ile viewing the display turn the rotary knob First use coarse adjustment to roughly set the value and then switch to fine adjustment to adjust the value precisely 6 Turn on the load Press the LOAD key The LOAD LED illuminates and the current flows The display shows the measured values voltage current and wattage at the load input terminal 7 Change the wattage setting Turn the rotary knob to change...

Page 80: ...start time Procedure Fig 5 10 Keys used in soft start 1 Check that the load is turned off Check that the LOAD LED is turned off If it is on press the LOAD key to turn it off 2 Select the menu setup Press the MENU SHIFT SET VSET key The menu appears 3 Select Setup Press the or CURSOR key several times until Setup is highlighted on the menu When highlighted press the ENTER key Time 0 Time 0 When sof...

Page 81: ...at the cursor is blinking by Soft Start on the menu and turn the rotary knob to select the soft start time 6 Exit from the menu Press the MENU SHIFT SET VSET key The display returns to the basic setting entry condition the characters SET is highlighted The soft start time is set Setup 1 Function 2 Protect Action 4 Cut Off 5 Response PREV NEXT 3 Memory Function Count Time OFF PREV Soft Start 1ms ...

Page 82: ...se the lock Hold down LOCK SHIFT LOCAL for a few seconds until a beep is heard The key icon clears and the lock is released Locking the PLZ 4W at power on By default the PLZ 4W is not locked at power on You can change the setting from the menu so that the PLZ 4W is locked at power on 1 Check that the load is turned off Check that the LOAD LED is turned off If the LED is illuminated press the LOAD ...

Page 83: ...ng cursor by Key Lock on the menu Turn the rotary knob to the right to display ON and left to display OFF To lock the PLZ 4W at power on select ON 6 Exit from the menu Press the MENU SHIFT SET VSET key The display returns to the basic setting entry condition the characters SET is highlighted When you turn on the PLZ 4W the next time it will be locked To perform panel operation hold down LOCK SHIFT...

Page 84: ...rt function 1 Execute the short function With the load turned on press the SHORT SHIFT SLEW RATE key A short icon appears When in CC mode the value is set to the maximum current when in CR mode the value is set to the minimum resistance The short function setting cannot be saved to the setup memory 2 Clear the short function Press the SHORT SHIFT SLEW RATE key again The short icon clears and the P...

Page 85: ...red menu item is highlighted on the menu When highlighted press the ENTER key To exit from the menu press the MENU SHIFT SET VSET key 1 Setup 2 Configuration 4 Model Info PREV NEXT 3 Calibration Menu Setup 1 Function 2 Protect Action 4 Cut Off 5 Response PREV NEXT 3 Memory 1 Master Slave 2 Power On 4 External PREV NEXT 3 Interface Configuration 1 CC Low 2 CC Mid 4 CC 15V 5 CC 150V PREV PREV NEXT 3...

Page 86: ...elect a menu item and move to the next screen press the NEXT SHIFT key 5 Select the setup item Press the or CURSOR key several times until the cursor moves next to the desired setup item 6 Select the value Turn the rotary knob to the right or left to select the value of the item To move to another item press the or CURSOR key several times to move the cursor 7 Exit from the menu Press the MENU SHI...

Page 87: ...1 Master Slave Operation MASTER SLAVE Parallel MASTER only 2 3 4 5 Load booster MASTER PLZ1004W only 1 2 3 4 2 Power On Load On OFF ON Key Lock OFF ON 3 Interface Control GPIB RS232C USB GPIB Address 1 to 30 RS232C Baudrate 2 400 4 800 9 600 19200 bps Data 8 fixed Stop 1 2 Parity NONE Ack acknowledge OFF ON USB VID 0x0B3E display only PID xxxx display only S N xxxx display only 4 External Control ...

Page 88: ...s initialized Initializing the PLZ 4W 1 While holding down the ENTER key turn on the POWER switch SET CLR appears when the display turns on Release the ENTER key when the next information appears The PLZ 4W settings are initialized Table 5 3 Factory default settings Item Panel settings Setup memory settings all 100 sets OCP value Maximum value Minimum value OPP value Maximum value Minimum value UV...

Page 89: ...rating voltage and the maximum input voltage range of the PLZ 4W In the case of DC operation also the phase lag of the current may cause instability in the PLZ 4W control inducing oscillation In this case also use the shortest twisted wire possible for the connection and achieve stable operation by lowering the response speed Response speed type and performance The following four levels are availa...

Page 90: ...5 30 Basic Operation PLZ 4W ...

Page 91: ...PLZ 4W Applied Operation 6 1 Chapter 6 Applied Operation This chapter describes functions such as ABC preset memories switching function and sequence function that are used in actual applications 6 6 ...

Page 92: ...f CC CR and CV modes In CC CR and CP modes the settings according to the current range are saved to the memories A B and C In CV mode the settings according to the voltage range are saved In CC CV and CR CV modes the voltage and current values are saved ABC preset memories can be recalled even when the load is turned on Fig 6 1 Keys for ABC preset memories Operation mode Range A B C CC CR CP Curre...

Page 93: ...are two methods for recalling memories SAFETY and DIRECT By default the SAFETY method is selected SAFETY In this method you check the memory contents on the display before actually recalling the settings DIRECT In this method the settings saved to memory A B or C are recalled directly The recalled settings are immediately applied as current settings Changing to the DIRECT method By default the SAF...

Page 94: ...es are set Recalling ABC preset memories SAFETY 1 Select the memory Set the operation mode and range according to the memory to be recalled Next press the key A B or C to be recalled The pressed key illuminates and the settings stored to the memory are shown on the display 2 Recall the memory To recall the memory press the ENTER key To change to another memory press the desired key A B or C check ...

Page 95: ...peration mode and range setting to preset memory A B or C For example if you press A the setting of 8 A at the current range of 33 A and voltage range of 150 V is saved to memory A Press the key of the memory to be recalled Press the key of the save destination memory Press ABC SHIFT ENTER In CC CV or CR CV mode saves two settings Recalls the two settings current or resistance and voltage that had...

Page 96: ...tion of CV Basic settings current resistance voltage and power Range setting RANGE VRANGE Slew rate value SLEW RATE Switching frequency and duty cycle FREQ DUTY Switching time Th TL Switching level and ratio LEVEL Protection setting OCP OPP UVP Contents of ABC preset memories A B C Table 6 2 Contents saved to a single memory set current resistance wattage voltage other values slew rate switching a...

Page 97: ... character press the key to move the cursor to the right and con tinue entering characters To move to the left press the key You can register up to 15 characters You can return to the memory number selection by pressing the CURSOR key when entering characters If you press the PREV SHIFT key or STORE SHIFT RECALL key the settings are not saved to the setup memory and the display returns to the basi...

Page 98: ...mber of the memory to be recalled When a memo is attached it is displayed under the memory number If you press the PREV SHIFT key or RECALL key the settings are not recalled from the setup memory and the display returns to the basic setting entry condition the characters SET is highlighted 4 Recall the setup memory Press the ENTER key The RECALL key illuminates The settings in the memory are recal...

Page 99: ... No the operation mode range setting setting current resistance voltage orpower and the contents of ABC preset memories saved at the current operation mode and range setting Save to the setup memory Recall the setup memory Press STORE SHIFT RECALL Select No and press ENTER Select No and press ENTER In CC CV or CR CV mode Recalls the operation mode range setting two settings current or resistance a...

Page 100: ...s diagram of a switching waveform Fig 6 6 Keys used in the switching function Operating Procedure 1 Select the switching level Press the LEVEL key The LEVEL key illuminates The maximum value that can be specified is the value specified in the current operation mode and the minimum value is 0 A or 0 mS If you press the SHIFT LEVEL key you can enter the level in terms of a percentage of the current ...

Page 101: ...n Hz and kHz switches automatically Setting the switching function using time 4 Select the switching time Press the Th TL SHIFT FREQ DUTY key The Th TL key illuminates The high side Th and the low side TL of the switching time is high lighted alternately each time you press Th TL SHIFT FREQ DUTY Highlight the one you wish to set 5 Set the switching time While viewing the display turn the rotary kn...

Page 102: ...es that can be specified maximum slew rate at each range are 1 10th the values of CC mode For the detailed values see section 9 1 Electrical Specifications Fig 6 7 Keys for the slew rate Procedure 1 Selects the slew rate Press the SLEW RATE key The SLEW RATE key illuminates 2 Sets the slew rate value While viewing the display turn the rotary knob to set the slew rate value You can press the rotary...

Page 103: ... Setup For a description of the UVP function see section 5 3 Types of Protection Functions and section 5 4 Setting the Protection Function Auto load off timer Cut Off Time In voltage measurement the voltage immediately before the load turns off is mea sured As a load off condition a timer is set to turn off the load after a specified time elapses When the load turns off a pop up window appears ind...

Page 104: ...te the sequence from an external controller The execution time can be assigned to each step You can pause a sequence using PAUSE and resume a sequence using an external trigger input Fast sequence A fast sequence can be set and executed from the PLZ 4W operation panel In addi tion the communication function can be used to set and execute the sequence from an external controller Each step is execut...

Page 105: ... be specified Mode Operation mode of the program CC CR CV or CP Range Range of the program Current range Voltage range Loop Number of program loops 1 to 9999 where 9999 is infinite loop Last Load Load condition off on when chain is off Last Set Current value when chain is off 0 to 100 of the range setting Chain Number of the program to be executed next OFF 1 to 10 Can be executed only when the ope...

Page 106: ...ype ON slope OFF step TRIG Output or not output the trigger signal during step execution ON OFF PAUSE Pause or not pause during step execution ON OFF Step execution pattern Of the settings of a step the execution pattern when RAMP current change type TRIG trigger output or PAUSE is specified are indicated below RAMP current transition RAMP sets the current transition When turned on the current tak...

Page 107: ...E SHIFT C key on the operation panel or apply a trigger signal to TRIG INPUT pin 11 of the J1 connector For a description of the trigger signal input see section 6 8 8 Trigger Signal Con trol Fig 6 14 PAUSE sequence example Step n 1 Step n TRIG OUT Example Set trigger output at step number n TRIG ON Trigger signal input TRIG IN PAUSE key Program in execution Paused Paused Program execution resumed...

Page 108: ...eens This section describes the common operations carried out on the edit screens such as moving the cursor within the edit screen selecting items entering values and characters and turning pages Please familiarize yourself with the functions of each key as they are basic operations carried out in sequence editing Moving the cursor On the edit screen you can change the value of the item at the pos...

Page 109: ...desired digit and increase or decrease only that digit For example if you wish to set a value of 100 100 times you can simply move the cursor to the hundreds digit and enter 1 using the rotary knob Entering characters memo A memo consisting of up to 11 characters can be added to each program Memos are used to identify programs You do not have to enter a memo However it is recommended that a descri...

Page 110: ...Load Load condition after the end of the sequence ON OFF Last Set Current value after the end of the sequence 0 000 to 100 of the range setting Chain The number of the next program to be executed after the end of the this program OFF 1 to 10 Step setting CC SET Setting executed in the step A mS V or W CR SET CV SET CP SET Step execution time h min s ms Hours minutes seconds 0 00 00 001 to 999 59 S...

Page 111: ...s of Fig 6 15 and ends the first loop Here we will set program 2 to be executed twice When program 2 is executed 2 times this sequence operation is finished Fig 6 15 Sequence execution example Program 1 CC mode executed once 1 7 A 200 s LOAD ON 2 7 A 150 s LOAD ON 3 0 5 A 80 s LOAD OFF Program 2 CC mode executed twice 1 10 A 200 s LOAD ON 2 5 A 50 s LOAD ON 3 8 A 150 s LOAD ON TRIG TRIG OFF TRIG O...

Page 112: ... the next item 5 Sets the range Range Turn the rotary knob to select the current range and voltage range In program 1 set 33 A 150 V PLZ164W After setting the range move the CURSOR key to move to the next item 6 Set the number of program loops Loop Turn the rotary knob to show the number of program loops Since program 1 is executed once set 0001 At the last line move the CURSOR key to move to the ...

Page 113: ...ttern 10 Insert a step line On the initial screen nothing is set for the step and END of the last line is highlighted Press the INS SHIFT key with END highlighted to insert the step line 001 11 Set the current value of step 1 On the initial screen the current is set to 0 000 Turn the rotary knob to set the current value of step 1 to 7 A 12 Set the current value of step 2 Move the cursor to END and...

Page 114: ... set LOAD and RAMP to ON Leave TRIG and PAUSE at OFF 18 Set the execution pattern of step 2 and 3 Like step 1 move the cursor and set the execution pattern of step 2 LOAD ON RAMP OFF TRIG OFF and PAUSE OFF and the execution pattern of step 3 LOAD OFF RAMP OFF TRIG ON PAUSE OFF We are done entering all the settings of program 1 Setting program 2 19 Move to the settings of program 2 Press the PREV S...

Page 115: ...nt value of step 3 8 A After setting the current values press the NEXT SHIFT key or the ENTER key to move to the next edit screen 26 Set the execution times of step 1 to 3 Repeat steps 14 to 16 to set the execution time of step 1 200 s 03 min 20 s the execution time of step 2 50 s and the execution time of step 3 150 s 02 min 30 s After setting the execution times press the NEXT SHIFT key or the E...

Page 116: ...e previous screen Switch the screen as you like and confirm or edit the settings Inserting steps Press the or CURSOR key so that the step line below the line you wish to insert is highlighted When the step line is highlighted press the INS SHIFT key A new step line is inserted above the line where the cursor was Deleting steps Press the or CURSOR key so that the line you wish to delete is high lig...

Page 117: ...s cannot be chained as in the normal sequence The number of programs that can be saved is 1 Program 11 Below are the settings of a program No Program number 11 Memo Memo up to 11 characters can be specified Mode Operation mode of the program CC or CR Range Range of the program Current range Voltage range Loop Number of program loops 1 to 9999 where 9999 is infinite loop Last Load Load condition OF...

Page 118: ...ated steps for which you specify the current values Fig 6 18 Setup example using the FILL function DATA1 Current value at the start step 0 000 to 100 of the range setting DATA2 Current value at the end step 0 000 to 100 of the range setting START Start step number STOP End step number In Fig 6 18 the same waveform is repeated twice DATA1 and DATA2 of the two waveforms are set to the same values re...

Page 119: ...at a time You can set the presence or absence of trigger output To monitor the current of each step set the magnification and move the steps 4 FILL function This function automatically sets the current values of steps in between two sep arated steps for which you specify the current values Common operations on the edit screens The common operations carried out on the edit screens such as moving th...

Page 120: ...ondition after the end of the sequence ON OFF Last Set Current value after the end of the sequence 0 000 to 100 of the range setting RPTSTEP Last step number 3 to 1024 per loop TIME BASE Step execution time 25 μs to 100 ms FILL DATA1 Current for the start step 0 000 to 100 of the range setting DATA2 Current for the end step 0 000 to 100 of the range setting START Start step number STOP End step nu...

Page 121: ...tes a program to simulate the waveform of Fig 6 19 The program execution repeats program 11 three times point A to point B point B to point C and point C to point D After executing three times the sequence ends with the current value of 1 A point E Fig 6 19 Sequence execution example 10A 5A 1A 1 6 5 10 11 15 1 6 5 10 11 15 1 6 5 10 11 15 A B C D E Execution RUN Trigger output Input current 10A 5A ...

Page 122: ...rotary knob to set the program number Select 11 because you can only select 11 for a fast sequence After setting the program number press the CURSOR key to move to the next item 3 Enter a memo When adding a memo turn the rotary knob to enter the characters In program 11 enter Program11 After entering the memo move the CURSOR key to move to the next item 4 Select the operation mode Turn the rotary ...

Page 123: ...SOR key to move to the next item 9 Set the last step per loop for program 11 Turn the rotary knob to set the step number Set 15 After setting the step number move the CURSOR key to move to the next item 10 Set the step execution time Turn the rotary knob to set the step execution time Set 1 ms After setting the step execution time press the ENTER key to move to the next edit screen Setting the cur...

Page 124: ...tep 3 to 5 Select the step number in the same fashion as step 12 and set the current value to 10 A 14 Set step 6 Select the step number in the same fashion as step 12 and set the current value to 5 A Next press the key to move the cursor to the trigger setting position and turn the rotary knob to select T 15 Set steps 7 to 10 Select the step number in the same fashion as step 12 and set the curren...

Page 125: ... Likewise the waveform moves 2 steps and 3 steps at a time for magnification M2 and M3 respectively At magnification M8 the waveform moves 8 steps at a time 5 Finish editing Pressing the PREV SHIFT returns to the previous page FILL function operation 1 Select sequence edit Press the EDIT SHIFT A key to display the program edit screen 2 Press the ENTER key to move to the monitor screen 3 Press the ...

Page 126: ... is completed a pop up window appears 5 Press the ENTER key to exit from the sequence execution screen If you press the RUN STOP SHIFT B key again after stopping the sequence the selected program is executed from the beginning Pausing the sequence While the sequence is executing press the PAUSE SHIFT C key The PAUSE screen appears and the sequence operation pauses To resume the operation press the...

Page 127: ... and the current mode and range settings do not match the settings of the sequence that you are trying to exe cute the settings of the sequence that you are trying to execute are forcibly changed to the current settings and the sequence is exe cuted Table 6 5 Before sequence execution Sequence execution Load on off condition Mode and range settings that you are trying to execute Execution Mode and...

Page 128: ...ote sensing on the rear panel S and the positive terminal of the equipment under test Likewise connect the remote sensing S to the negative ter minal The remote sensing should be wired at the nearest to the EUT Electric wire used You do not have to take into account the allowable current as in the load wire How ever for mechanical strength use a wire with a nominal cross sectional area of 0 5 mm2 ...

Page 129: ... 100 of the rated value of the range CR Change of 0 V to 10 V produces a change of maxi mum value to minimum value of the range Resistance proportional CC CP CV Change of 0 Ω to 10 kΩ produces a change of 0 to 100 of the rated value of the range CR Change of 0 Ω to 10 kΩ produces a change of maximum value to minimum value of the range Resistance inverse proportional CC CP CV Change of 10 kΩ to 0 Ω...

Page 130: ... shape and the same num ber of pins However J1 is assigned to external control while J2 is assigned to paral lel operation For details on the pin arrangement see Table 6 9 or Table 6 10 Fig 6 23 Rear panel L L ACOM Do not Connect EUT Load input terminals PLZ 4W External control terminal Attach the ferrite core External device Common terminal PROTECTIVE GROUNDING CONDUCTOR MUST BE CONNECTED TO GROU...

Page 131: ...ctor The connector parts needed to connect the J1 J2 connector standard MIL connector 20 pin are not provided Table 6 8 shows the recommended connector When using a flat cable be sure to use a connector with a strain relief To press fit discrete wires or flat cables be sure to use a special tool For a description of applicable cables and tools see the relevant catalogs of connector manufacturers T...

Page 132: ...ing master slave operation Connected to PRL OUT of the J2 connector 7 LOAD ON OFF CONT Turns on the load with low or high TTL level signal Pulled up the internal circuit to 5 V using 10 kΩ 8 RANGE CONT 1 External range switch input 1 2 Pulled up the internal circuit to 5 V using 10 kΩ 9 RANGE CONT 0 10 ALARM INPUT Activates alarm with low TTL level signal input Pulled up the internal circuit to 5 ...

Page 133: ...RL IN of the J1 connector 7 N C 8 N C 9 SLAVE RANGE CONT Used during master slave operation Connected to RANGE CONT 0 of the J1 con nector 10 N C 11 N C 12 A COM Connected to the negative load input terminal on the rear panel 13 N C 14 N C 15 N C 16 ALARM INPUT Activates an alarm with high or low TTL level signal input Pulled up the internal circuit to 5 V 17 A COM Connected to the negative load i...

Page 134: ...s J1 1 signal J1 3 common The maximum voltage that can be applied across pins 1 and 3 of the J1 connector is 11 V Applying a voltage exceeding this value can damage the PLZ 4W Accuracy is not guaranteed for voltages below 0 V and above 10 V Pin 3 of the J1 connector is connected the negative load input terminal To prevent damaging the PLZ 4W be sure not to let the wire of pin 3 touch any other pin...

Page 135: ...t the current range When also controlling the cur rent range externally be sure to select H range on the panel 6 Select the menu setup Press the MENU SHIFT SET VSET key The the menu appears 7 Select Configuration Press the or CURSOR key several times until Configuration is high lighted on the menu When highlighted press the ENTER key 8 Select External Press the or CURSOR key several times until Ex...

Page 136: ...the external voltage The adjust ment is valid for the specified range If you change the range make a readjustment Adjustment is made by actually supplying the load current Prepare the power supply to be tested 1 Turn on the load 2 Set the external voltage to 0 V 3 Turn OFS to set the current reading of the display measurement section to 0 A 4 Set the external voltage to 10 V 5 Turn FSC to set the ...

Page 137: ... of 10 kΩ is 0 A the input current corresponding to the external resistance of 0 Ω is 100 of the specified range Connected pins J1 1 signal J1 3 common Fig 6 26 Equivalent circuit Fig 6 27 Control the current using external resistance J1 Rin Io Input current Im Rated current Rin External variable resistor 0 Rin Approx 10 kΩ Rin kΩ 10 Io Im Rin kΩ 10 1 mA MAX12 V 1 3 A COM EXT R V CONT Proportional...

Page 138: ...hat the LOAD LED is turned off If the LED is illuminated press the LOAD key to cut off the current 5 Set the operation mode and current value Press the MODE key to select the operation mode Press the RANGE key to set the current range When also controlling the cur rent range externally be sure to select H range on the panel 6 Select the menu setup Press the MENU SHIFT SET VSET key The menu appears...

Page 139: ... resistance The adjust ment is valid for the specified range If you change the range make a readjustment Adjustment is made by actually supplying the load current Prepare the power supply to be tested For proportional control 1 Turn on the load 2 Set the external resistance to 0 Ω 3 Turn OFS to set the current reading of the display measurement section to 0 A 4 Set the external resistance to 10 kΩ...

Page 140: ...lied across pins 1 and 3 of the J1 connector is 11 V Applying a voltage exceeding this value can damage the PLZ 4W Pin 3 of the J1 connector is connected the negative load input terminal To prevent damaging the PLZ 4W be sure not to let the wire of pin 3 touch any other pins Fig 6 28 Equivalent circuit Fig 6 29 Control the resistance using external voltage The setup procedure is the same as with C...

Page 141: ...vely Connected pins J1 1 signal J1 3 common Fig 6 30 Equivalent circuit Fig 6 31 Control the resistance using external resistance The setup procedure is the same as with CC mode See page 6 45 Setup procedure for external voltage control 1 J1 Rin Gm Rated conductance Rin External variable resistor 0 Rin approx 10 kΩ Rin kΩ 10 1 R0 1 R0 Rin kΩ 10 3 Proportional control Inverse proportional control 1...

Page 142: ...m voltage that can be applied across pins 1 and 3 of the J1 connector is 11 V Applying a voltage exceeding this value can damage the PLZ 4W Pin 3 of the J1 connector is connected the negative load input terminal To prevent damaging the PLZ 4W be sure not to let the wire of pin 3 touch any other pins Fig 6 32 Equivalent circuit Fig 6 33 Control the resistance using external voltage The setup proced...

Page 143: ...l resistance of 0 Ω is 100 of the specified range Connected pins J1 1 signal J1 3 common Fig 6 34 Equivalent circuit Fig 6 35 Control the wattage using external resistance The setup procedure is the same as with CC mode See page 6 45 Setup procedure for external voltage control 1 J1 Rin Po Pm Po Input power Pm Rated power Rin External variable resistor 0 Rin approx 10 kΩ Rin kΩ 10 Rin kΩ 10 3 Prop...

Page 144: ...ltage that can be applied across pins 1 and 3 of the J1 connector is 11 V Applying a voltage exceeding this value can damage the PLZ 4W Pin 3 of the J1 connector is connected the negative load input terminal To prevent damaging the PLZ 4W be sure not to let the wire of pin 3 touch any other pins Fig 6 36 Equivalent circuit Fig 6 37 Control the current using external voltage The setup procedure is ...

Page 145: ...tance of 0 Ω is 100 of the specified range Connected pins J1 1 signal J1 3 common Fig 6 38 Equivalent circuit Fig 6 39 Control the wattage using external resistance The setup procedure is the same as with CC mode See page 6 45 Setup procedure for external voltage control 1 J1 Rin Vo Vm Vo Input voltage Vm Rated voltage Rin External variable resistor 0 Rin approx 10 kΩ Rin kΩ 10 Vo Vm Rin kΩ 10 3 P...

Page 146: ...ternally the LOAD switch cannot be used to turn the load on You can select the logic used to externally control the load on off using the menu setup To change the logic select 2 Configuration 4 External Load On IN from the menu and specify LOW or HIGH For a description of changing the menu setup see section 5 13 Menu Setup Table 6 11 Load on off logic setting Fig 6 40 Equivalent input circuit The ...

Page 147: ...connector The maximum allowable voltage is 5 V and the minimum pulse width is 10 μs The trigger signal output is generated at the rising edge of the pulse signal applied to the trigger input connector The input terminal is connected to A COM of the J1 connector through approxi mately 100 kΩ of resistance The maximum allowable voltage is 5 V and the operation threshold level is TTL Fig 6 42 Equival...

Page 148: ...2 is common 2 bit signal The control input terminal is connected to 5 V of the J1 connector through approximately 10 kΩ of resistance The maximum allowable voltage is 5 V and the operation threshold level is TTL Status signal output Pins 14 and 15 of the J1 con nector are used pin 17 is com mon 2 bit signal Current range Control input Status output PLZ 164W 164WA PLZ 334W PLZ 664WA PLZ 1004W RANGE...

Page 149: ...d to 5 V of the J1 connector through approximately 10 kΩ of resistance The maximum allowable voltage is 5 V and the operation threshold level is TTL Status signal output To externally monitor the alarm condition the output signal across pins 16 and 17 of the J1 connector is used The output is turned on when OVP OCP OPP OHP REV or UVP trips or when an external alarm signal is applied 5 V Approx 10 ...

Page 150: ...cified is executed during sequence operation Current monitor output The signal is output from the I MON OUT connector on the PLZ 4W front panel and across pins 2 and 3 pin 3 is common of the J1 connector Pin 3 of the J1 connector is connected the negative load input terminal To prevent damaging the PLZ 4W be sure not to let the wire of pin 3 touch any other pins I MON OUT connector BNC on the PLZ ...

Page 151: ...nected in parallel The monitor output corresponds to this full scale current the total of the full scale currents of each range Monitor output VH L VM 0 Range H L M 0 Current Full scale of range Total value of all units connected in parallel during parallel operation VH L VM I MON OUT connector BNC 1 V 0 1 V Across pins 2 and 3 of the J1 connector 10 V 1 V ...

Page 152: ...PLZ2004WB are connected in parallel with a single master PLZ1004W Up to four load boosters can be connected in parallel Load boosters PLZ2004WB can only be connected to PLZ1004W During parallel operation the specifications may not be satisfied on the individual unit The accuracy of setting and measurement accuracy can be improved by carrying out calibration in parallel operation The current ripple...

Page 153: ...sufficient thickness by taking into account the current being used It is recommended to use the bus bar instead of wiring the cable Separate the load cable from the flat cable as much as possible to prevent unstable operation Slave unit Maximum current Maximum power PLZ164W 164WA PLZ334W PLZ664WA PLZ1004W 1 unit 66 A 330 W 132 A 660 W 264 A 1 320 W 400 A 2 000 W 2 units 99 A 495 W 198 A 990 W 396 ...

Page 154: ... J1 and J2 connectors of each unit in parallel using flat cables Carry out the work carefully as improper connection of the J1 and J2 connec tors can damage the PLZ 4W Setup procedure of the master slave units 1 Turn on the power of each unit Turn on the POWER switch of all units at once or turn on the POWER switch of slave units first to turn on the power to all units 2 Select the menu setup Pres...

Page 155: ... power to all units The menu settings are confirmed 9 Set the operation mode and value and turn on the load Operate the master unit to set the master mode and value The range of the rated current and rated power on the master unit is expanded After entering the settings turn off the load 6 10 2 Parallel Operation Using Load Boosters Load boosters are slave units dedicated to parallel operation The...

Page 156: ... is assigned as a master unit in parallel operation with response speed is set at 1 1 the setting of response speed will change to be set at 1 2 in order to secure the stable operation It is possible to be reset to 1 1 by the menu setting please refer to the Technical Note for the PLZ 4W When operating under parallel operation or high speed load simulations as provided as separate sheet and wire t...

Page 157: ...7 1 Chapter 7 Remote Control This chapter givess an overview of reemote control For detail of the command see the Communication Interface Manual The commnunication Interface Manual is provided on the accompanying CD ROM 7 7 ...

Page 158: ...l The PLZ 4W conforms to the following standards IEEE Std 488 2 1992 IEEE Standard Codes Formats Protocols and Com mon Commands For Use With IEEE Std 488 1 1987 IEEE Std 488 1 1987 IEEE Standard Digital Interface for Programmable Instrumentation TIA EIA 232F Standard Commands for Programmable Instruments SCPI version 1999 0 Universal Serial Bus Specification Rev 2 0 Universal Serial Bus Test and M...

Page 159: ...key several times until Configuration is high lighted on the menu When highlighted press the ENTER key 4 Select interface Press the or CURSOR key several times until Interface is highlighted on the menu When highlighted press the ENTER key 5 Select GPIB Check that the cursor is blinking by Control on the menu and turn the rotary knob to select GPIB 6 Select Address Press the CURSOR key and check t...

Page 160: ... key 4 Select interface Press the or CURSOR key several times until Interface is highlighted on the menu When highlighted press the ENTER key 5 Select RS232C Check that the cursor is blinking by Control on the menu and turn the rotary knob to select RS232C 6 Select Baudrate Press the CURSOR key and check that the cursor is blinking by Baudrate on the menu Then turn the rotary knob to set the baud ...

Page 161: ...4W to the controller It notifies that the processing of the program message has been completed The acknowledge message is an ASCII code string consisting of only the header The following two types are available OK Normal completion ERROR Syntax error or other errors To use acknowledge messages select 1 Configuration 3 Interface RS232C from the menu and turn Ack ON On the controller the RS232C conf...

Page 162: ...Select the menu setup Press the MENU SHIFT SET VSET key The menu screen is displayed 3 Select Configuration Press the or CURSOR key several times until Configuration is high lighted on the menu When highlighted press the ENTER key 4 Select interface Press the or CURSOR key several times until Interface is highlighted on the menu When highlighted press the ENTER key 5 Select USB Check that the curs...

Page 163: ...u pro gram window opens If the menu program window does not open browse the CD ROM with Windows Explorer and double click index html The menu program will start Application sowtware PLZ Application Samples Requires to install the VISA library Driver KI VISA x x x Operation Manual User s Manual PDF The communication Interface Manual HTML ...

Page 164: ...aries M01 00 or later KI VISA Ver 3 0 0 or later Installing KI VISA KI VISA is Kikusui s original VISA library that supports VXIplug play VISA Specifications The newest version can be downloaded from Download service of Kikusui website http www kikusui co jp en download KI VISA is not required if NI VISA or Agilent VISA is already installed 1 Load the accompanying CD ROM into the CD ROM drive 2 Mo...

Page 165: ...PLZ 4W Remote Control 7 9 7 Uncheck Protect my computer and data from unauthorized program activity and click OK 8 Proceed with the installation according to the instructions on the screen Uncheck ...

Page 166: ...etail see Readme html in Application foler of CD ROM 7 4 Command Details For command details see the Communication Interface Manual on the accompany ing CD ROM The communication interface manual is in HTML format that can be viewed with a WWW World Wide Web browser The HTML manual can be viewed using the following browsers Operating environment Windows 98 or later Browser Microsoft Internet Explor...

Page 167: ...PLZ 4W Maintenance and Calibration 8 1 Chapter 8 Maintenance and Calibration This chapter describes how to maintain inspect and calibrate the PLZ 4W 8 8 ...

Page 168: ...benzine They may discolor the surface erase printed characters or cloud the LCD 8 1 2 Cleaning the Dust Filter A dust filter is installed on the inside of the louver on the front panel Periodically clean the filter to prevent clogging Clogged filters hinder the cooling of the inside of the instrument and can cause a malfunction and shortening of the service life Cleaning procedure 1 Remove the lou...

Page 169: ... is fixed in place 8 1 3 Inspecting the Power Cord Check the power cord for breaks in its protective cover cracked plugs or rattling and loosened screws 8 1 4 Internal Inspection The electrolytic capacitors fan motor and battery for memory backup inside the PLZ 4W are consumable parts It is recommended that the PLZ 4W be overhauled every 10000 operating hours along with internal inspection and cle...

Page 170: ...rent is not flowing properly the fuse may have blown off Please check the following procedure 1 Apply the current flow while the loads are connected 2 Remove the whole louvers on the front panel and check if the LED lights in red If the LED lights the fuse may have blown off In this case contact your Kikusui distributor agent for request of service Check for the input voltage and the input current...

Page 171: ...at 2 points During opera tion the relationship between the setting and output is achieved along the calibrated line Fig 8 4 Offset and gain calibration Calibration items The following six items are calibrated for three current ranges and two voltage ranges 1 Offset of the internal reference voltage for output setting 2 Gain of the internal reference voltage for output setting 3 Offset of the measu...

Page 172: ...nection diagram Name Required accuracy Required rating DC voltmeter Within 0 02 Measurement voltage range 0 V to 155 V Shunt resistor 0 1 For 0 5 A 1 For 1 A 1 2 For 2 A 3 4 For 5 A 1 For 10 A 2 For 20 A 3 4 For 50 A 1 For 100 A 2 For 200 A 3 4 Regulated DC power supply constant voltage power supply Voltage 5 V Current 33 A 1 66 A 2 132 A 3 200 A 4 Regulated DC power supply constant current power ...

Page 173: ...ation screen appears Fig 8 6 Calibration screen Alarm If an alarm occurs while the calibration is in progress the load turns off along with a beeping alarm Press the ENTER key after clearing the problem which was caused to activate an alarm then the Calibration screen appears on the display and a beep ing alarm stops In this case go back to the step from the beginning of the alarm occurd calibrati...

Page 174: ... scale 2 Press the or CURSOR key to select the calibration number 1 CC Low 3 Connect a CV power supply to the load input terminal and apply 5 V Set the current of the power supply approximately in the range of 2 to 5 of the rated current of the load device 4 Press the ENTER key The load automatically turns on and the offset calibration CC Low Offset Adjustment screen appears Procedure Current rang...

Page 175: ... scale See Table 8 3 for the current settings of each model 8 Press the ENTER key The load is automatically turned off The calibration for this item is complete Continue to step C Step C Calibration of the gains of internal reference voltage for out put setting and measured value 9 Connect a shunt resistor that matches the value corresponding to 100 of the low range full scale 10 Press the ENTER k...

Page 176: ...er 2 CC Mid by carrying out a similar procedure High range calibration 16 Return to number 1 of step A again and calibrate the High range cali bration number 3 CC High by carrying out a similar procedure Step 16 completes the CC mode calibration Table 8 3 CC mode settings Calibration number and item Output setting of the power supply Current to be matched PLZ164W PLZ164WA PLZ334W PLZ664WA PLZ1004W...

Page 177: ...onnect a CC power supply to the load input terminal and supply 0 3 A Set the voltage of the power supply to 15 5 V or greater 3 Press the ENTER key The load automatically turns on and the offset calibration CV 15V Offset Adjustment screen appears Fig 8 8 CV 15V Offset Adjustment screen Procedure Voltage range Percentage with respect to the full scale Calibration item Internal reference voltage for...

Page 178: ...ntinue to step G Step G Calibration of the gains of internal reference voltage for out put setting and measured value 8 Press the ENTER key The load automatically turns on and the gain calibration CV 15V Gain Adjustment screen appears 9 Press the or CURSOR key to select DAC REF and turn the rotary knob Monitor the input voltage on an external voltmeter and set the input voltage within 0 05 of the ...

Page 179: ...2 Press the MENU SHIFT SET VSET key The original screen displayed before entering menu setup appears If you press the NEXT SHIFT key or ENTER key on the gain calibration screen the calibration data is written to the internal memory If you only wish to check the calibration data be sure to exit from the gain cali bration screen by pressing the PREV SHIFT key or MENU SHIFT SET VSET key Calibration n...

Page 180: ...ied for the input power supply AC No Broken power cord Bad connection at the AC INPUT connector on the rear panel Check that the power cord is not broken and that the connection at the AC INPUT connector is secure Yes Malfunction Remove the power cord plug from the outlet Immediately stop the use of the instrument and request repairs Check Item Possible Cause Remedy Location and Status of the Obje...

Page 181: ...Check Item Possible Cause Remedy Location and Status of the Object Check Result Is the fan stopped Yes Overheat protection tripped Immediately stop the use of the instrument and request repairs Is the air intake or outlet obstructed Yes Overheat protection tripped Clogged dust filter Allow at least 20 cm between the air outlet and the wall In addition do not place objects within 20 cm Clean the du...

Page 182: ...2 Press the CURSOR key several times to select Ack 3 Press the ENTER key ON Q is selected It is impossible to select ON Q with the rotary knob To select ON OFF press the ENTER key again Check Item Possible Cause Remedy Location and Status of the Object Check Result Is the LED located inside of the unit illuminated See the 8 2 Confirming status of the fuse Yes Fuse blow Immediately stop the use of ...

Page 183: ...PLZ 4W Specifications 9 1 Chapter 9 Specifications This chapter lists the electrical and mechanical specifications of the PLZ 4W 9 9 ...

Page 184: ...in Input terminal voltage of Electronic Load 3 M range applies to the full scale of H range 4 When the input voltage is varied from 1 5 V to 150 V at a current of rated power 150 V 5 Measurement frequency bandwidth 10 Hz to 1 MHz 6 Measurement frequency bandwidth 10 Hz to 20 MHz 7 At measurement current of 100 A Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Operating voltage DC 1 1 5 V 150 V 2 ...

Page 185: ... 55 mΩ 25 kΩ 8 8 S 160 μS 113 63 mΩ 6 25 kΩ L 0 22 S 4 μS 4 545 5 Ω 250 kΩ 0 44 S 8 μS 2 272 7 Ω 125 kΩ 1 33332 S 24 μS 750 mΩ 41 666 kΩ 0 22 S 4 μS 4 545 5 Ω 250 kΩ 0 88 S 16 μS 1 136 3 mΩ 62 5 kΩ Setting range Range H 23 1 S 0 S 43 290 mΩ OPEN 46 2 S 0 S 21 692 mΩ OPEN 139 9968 S 0 S 7 1430 mΩ OPEN 23 1 S 0 S 43 290 mΩ OPEN 92 4 S 0 S 10 822 mΩ OPEN M 2 31 S 0 S 432 9 mΩ OPEN 4 62 S 0 S 216 92 m...

Page 186: ... W 0 W 6 93 W Resolution Range H 10 mW 10 mW 100 mW 10 mW 20 mW M 1 mW 1 mW 10 mW 1 mW 2 mW L 0 1 mW 0 1 mW 1 mW 0 1 mW 0 2 mW Accuracy of setting 1 0 6 of set 1 4 of f s 2 Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Display Range H M 0 00 V 150 00 V L 0 000 V 15 000 V Accuracy 0 1 of rdg 0 1 of f s Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Display Range H M 0 000 A 33 000 A 0 000 A 66...

Page 187: ...0 mA μs 10 A μs M 250 μA μs 250 mA μs 500 μA μs 500 mA μs 1 6 mA μs 1 6 A μs 250 μA μs 250 mA μs 1 mA μs 1 A μs L 25 μA μs 25 mA μs 50 μA μs 50 mA μs 160 μA μs 160 mA μs 25 μA μs 25 mA μs 100 μA μs 100 mA μs Resolution See below Accuracy of setting 2 10 of set 5 μs PLZ164W PLZ164WA Setting 25 μA μs 250 μA μs 250 μA μs 2 5 mA μs 2 5 mA μs 25 mA μs 25 mA μs 250 mA μs 250 mA μs 2 5 A μs Resolution 10...

Page 188: ...dervoltage protection UVP Turns off the load when detected Can be set in the range of 0 V to 150 V or Off Reverse connection detection REV By diode and fuse Turns off the load when an alarm occurs Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Normal sequence Operation mode CC CR CV or CP Maximum number of steps 256 Step execution time 1 ms 999 h 59 min Time resolution 1 ms 1 ms 1 min 100 ms 1 m...

Page 189: ...e rated voltage CV mode or rated power CP mode 0 Ω to 10 kΩ correspond to maximum resistance to minimum resistance or minimum resistance to maximum resistance CR mode Current monitor output 10 V for f s H or L range and 1 V for f s M range Parallel operation input Signal input for one control parallel operation Parallel operation output Signal output for one control parallel operation Load booster...

Page 190: ... 53 lb Approx 16 kg 35 27 lb Battery backup Backs up setup information Accessories Power cord 1 pc with plug Length approx 2 4 m Load input terminal cover 1 piece 2 lock plates provided Set of screws for the load input terminal 2 sets bolts nuts and spring washers Setup Guide 1 piece Japanese English Quick Reference Japanese 1 piece English 1 piece CD ROM 2 2 Contains Application Samples User s ma...

Page 191: ...155 61 02 MAX 20 7 87 27 25 10 73 27 25 10 73 160 62 99 70 27 56 275 108 27 55 21 65 35 25 13 88 35 25 13 88 144 56 69 4 φ30 Feet diameter 4 φ5 1 97 Mounting holes for feet 4 M3 screw holes Max depth 5mm 1 97inch 73 28 74 275 108 27 52 20 47 MAX470 185 04 MAX30 11 81 23 9 06 400 157 48 367 144 49 MAX455 179 13 429 5 169 09 MAX 10 3 94 8 M4 screw holes Max depth 6mm 0 24 inch 128 50 39 MAX150 59 06...

Page 192: ...9 10 Specifications PLZ 4W ...

Page 193: ...he current is decreased these types can be used even at voltages lower than 1 5 V actual operating area However the specifications are not guaranteed For the operating areas of each individual model see appendix A 3 Operating Area of Each Model Fig A 1 Operating area PLZ164W 1 5 V input type H range PLZ164WA 0 V input type H range 0 1 0 3 1 10 100 0 1 1 10 Input current A Input voltage V Operating...

Page 194: ...es CC mode operation When the PLZ 4W is used in CC mode the PLZ 4W operates as a constant current load as shown in Fig A 2 The PLZ 4W sinks the specified current I independent of the output voltage of the constant voltage power supply V1 Fig A 2 Equivalent circuit of the constant current load and operation Transition of the operating point Overpower protection OPP We will consider the case when ch...

Page 195: ... B Even if you attempt to increase the input current the current is lim ited at point B If you decrease the input current the OPP is cleared The PLZ 4W returns to CC mode and the operating point moves along segment AB TableA 1 OPP action protect action Fig A 3 Operation on segment CD If the voltage of the constant voltage power supply is set to V2 and the input current load current of the PLZ 4W i...

Page 196: ...mode OPP trip point If the overcurrent protection OCP setting IOCP is greater than the current value IB at point B when the PLZ 4W resistance is decreased R1 R2 RB and the input current load current is increased with the voltage of the constant voltage power supply at V1 the operating point moves along segment AB A1 A2 B When point B is reached overpower protection OPP trips At this point two type...

Page 197: ...f operation are available on the PLZ 4W depending on the protection action setting of the OCP If Protect Action is set to LOAD OFF the load is turned off If protection action is set to LIMIT the PLZ 4W sinks current as a constant current load at point F Even if you attempt to increase the input current by decreasing the resistance the current is limited at point F If you decrease the input current...

Page 198: ...the CP mode and operation Transition of the operating point Overcurrent protection OCP We will consider the case when checking the load characteristics of the constant voltage power supply of Fig A 7 using CP mode Fig A 8 Transition of the operating point in CP mode OCP trip point 0 V2 V1 I1 I2 V2 V1 I1 I2 P Rated maximum current value I V Current I Voltage V Power current voltage is constant even...

Page 199: ...s a constant current load at point B Even if you attempt to increase the input current the current is lim ited at point B If you decrease the input current the OCP is cleared The PLZ 4W returns to CP mode and the operating point moves along segment AB Table A 4 OCP action protect action Fig A 8 Operation on segment GH If the voltage of the constant voltage power supply is set to V3 and the power o...

Page 200: ...ics of the constant voltage power supply of Fig A 9 using CV mode Fig A 10 Transition of the operating point in CV mode OPP trip point We assume that the overcurrent protection OCP setting IOCP is greater than cur rent IN at point N and denote the voltage of the constant voltage power supply as VM When the voltage of the PLZ 4W is equal to VMO VMO VM no current flows When the voltage of the PLZ 4W...

Page 201: ... voltage is decreased further VM1 VM2 VL to increase the input current load current the operating point moves along segment ML M1 M2 L When point L is reached overcurrent protection OCP trips At this point two types of oper ation are available on the PLZ 4W depending on the protection action setting of the OCP If Protect Action is set to LOAD OFF the load is turned off If protection action is set ...

Page 202: ...the internal resistance of the constant voltage power supply In constant voltage CV mode the PLZ 4W may operate unstably if R1 is low Fig A 12 Equivalent circuit of the CC CV mode and operation Transition of the operating point Overpower protection OPP We will consider the case when checking the discharge characteristics of a battery of Fig A 12 Fig A 13 Transition of the operating point in CC CV ...

Page 203: ...ven if you attempt to increase the current the current is limited at point N If you decrease the current the OPP is cleared The PLZ 4W returns to CC mode and the operating point moves along segment MN Table A 7 OPP action protect action If the overpower protection OPP setting is PN1 the OPP does not trip as the cur rent is increased and the operating point reaches point S Here the operation mode i...

Page 204: ... 14 R1 is the internal resistance of the constant voltage power supply In constant voltage CV mode the PLZ 4W may operate unstably if R1 is low Fig A 14 Equivalent circuit of the CR CV mode and operation Transition of the operating point Overpower protection OPP We will consider the case when checking the discharge characteristics of a battery of Fig A 14 Fig A 15 Transition of the operating point...

Page 205: ...s to CR mode and the operating point moves along segment MN Table A 8 OPP action protect action If the overpower protection OPP setting is PN1 the OPP does not trip as the resis tance is decreased to increase the current Consequently the operating point reaches point S Here the operation mode is CV The voltage is fixed to voltage VQ set in advance In this case the operating point moves along segme...

Page 206: ... current load at point T Even if you attempt to increase the current by decreasing the resis tance the current is limited at point T If you decrease the current by increasing the resistance the OCP is cleared The PLZ 4W returns to CR mode and the operating point moves along segment MT Table A 9 OCP action protect action If the overcurrent protection OCP setting is IOCP1 the OCP does not trip as th...

Page 207: ...ating area Input current A Input voltage V Actual operating area Low voltage area 0 0 5 0 3 1 0 0 1 3 3 1 5 2 0 0 11 2 3 Operating area where specifications are guaranteed 0 1 0 3 1 10 100 0 01 0 1 1 Input current A Input voltage V Operating area where specifications are guaranteed Actual operating area 150 5 1 5 0 11 3 3 50 165W CP mode M range 16 5W 0 0 5 0 3 1 0 0 1 Input current A Input voltag...

Page 208: ...t current A Input voltage V Actual operating area 0 0 5 0 3 1 0 0 2 6 6 1 5 2 0 0 11 4 6 Operating area where specifications are guaranteed Low voltage area 0 1 0 3 1 10 100 0 01 0 1 1 Input current A Input voltage V Operating area where specifications are guaranteed Actual operating area 150 5 1 5 0 22 6 6 50 330W CP mode M range 33W 0 1 0 3 1 10 100 0 001 0 01 0 1 Input current A Input voltage V...

Page 209: ...rea 0 1 0 3 1 10 100 0 1 1 10 Input current A Input voltage V 20 Operating area where specifications are guaranteed Actual operating area 100W 150 5 1 5 0 67 CP mode M range 1kW Input current A Input voltage V 0 0 5 1 0 0 1 5 2 0 0 11 0 3 5 10 15 20 25 Low voltage area Actual operating area Operating area where specifications are guaranteed 0 1 0 3 1 10 100 0 01 0 1 1 Input current A Input voltage...

Page 210: ...A Input voltage V Operating area where specifications are guaranteed 165W 150 5 1 1 33 0 1 0 3 1 10 100 0 01 0 1 1 Input current A Input voltage V Operating area where specifications are guaranteed 16 5W 150 5 0 11 3 3 50 165W CP mode M range 0 1 0 3 1 10 100 0 001 0 01 0 1 Input current A Input voltage V Operating area where specifications are guaranteed 1 65W 150 5 0 011 0 33 CP mode L range ...

Page 211: ...ut current A Input voltage V Operating area where specifications are guaranteed 660W 150 5 132 0 1 0 3 1 10 100 0 1 1 10 Input current A Input voltage V Operating area where specifications are guaranteed 66W 150 5 50 660W CP mode M range 13 2 0 1 0 3 1 10 100 0 01 0 1 1 Input current A Input voltage V Operating area where specifications are guaranteed 6 6W 150 5 CP mode L range 1 32 ...

Page 212: ...ogram number 1 to 10 Memo Up to 11 characters Operation mode CC CR CV CP Range Current A Voltage V A V Loop 1 to 9999 Last Load OFF ON OFF ON Last Set Chain OFF 1 to 10 Step number Setting mA mS V W Execution time h min s ms LOAD RAMP TRIG PAUSE Note 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ...

Page 213: ...h min s ms LOAD RAMP TRIG PAUSE Note 1 7 A 200 s ON ON OFF OFF 2 7 A 150 s ON OFF OFF OFF 3 0 5 A 80 s OFF OFF OFF OFF Program name Example sequence of chapter 6 PLZ164W Date By Program number 1 to 10 2 Memo Up to 11 characters Program2 Operation mode CC Range Current A Voltage V 33 A 150 V Loop 1 to 9999 0002 Last Load OFF ON OFF Last Set 0 Chain OFF 1 to 10 OFF Step number Setting mA mS V W Exec...

Page 214: ...A 22 Appendix PLZ 4W ...

Page 215: ... voltage 6 13 coarse adjustment 5 2 COARSE FINE 4 6 communication function 9 7 conductance 5 13 5 14 5 15 configuration 5 27 constant current and constant voltage mode 3 7 A 10 constant current mode 3 7 5 10 A 2 constant power mode 3 7 5 18 A 6 constant resistance and constant voltage mode 3 7 A 12 Constant resistance mode 3 7 constant resistance mode 5 13 A 4 constant voltage mode 3 7 5 16 A 8 co...

Page 216: ...p 7 3 inverse proportional control 6 47 6 51 6 53 6 55 J J1 connector pin arrangement 6 42 J1 J2 connector 4 5 6 40 J2 connector pin arrangement 6 43 K key icon 5 22 L large capacity support for 1 7 last load 6 15 last set 6 15 LEVEL key 4 10 LIMIT 3 8 LOAD 6 16 load input terminal on the front panel 2 17 load input terminal on the rear panel 2 15 LOAD key 4 6 LOAD OFF 3 8 load off 3 9 load on 3 9...

Page 217: ...op up menu 3 5 5 2 power consumption 9 8 power cycle 3 3 power on 5 27 power supply 2 5 power supply connection to 2 5 POWER switch 4 3 preset memory recalling of 6 3 preset memory saving to 6 3 product version 1 2 program 6 15 program 11 6 27 program number 6 15 program creation of 6 22 6 32 proportional control 6 47 6 51 6 53 6 55 protect action 3 8 5 27 protection functions 9 6 R rack mount bra...

Page 218: ... 26 STOP 6 28 storage humidity range 2 3 9 8 storage temperature range 2 3 9 8 STORE key 4 10 SW ON key 4 9 switching function 6 10 T terminal cover 2 14 Th TL key 4 9 TIME BASE 6 27 time measurement 6 13 TRIG 6 16 TRIG trigger output 6 17 TRIG OUT connector 4 3 trigger signal output 6 60 U undervoltage protection 5 7 USB connector 4 5 USB control 7 6 UVP 5 7 UVP key 4 9 V ventilation poor 2 3 vol...

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