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Parallel/Series Operation

This chapter describes the functions of
series operation and the master-slave par-
allel operations as well as the connection,
setup, and operation procedures.

Parallel/Series Operation

Содержание PWX1500H

Страница 1: ...n Functions and Alarms 36 CONFIG Settings 42 Preset Memory Function 55 Locking Panel Operations Key lock 57 Bleeder On Off Feature 57 Switching from Remote Mode to Local Mode 59 Factory Default Settin...

Страница 2: ...e is required to view the HTML files Firmware versions that this manual covers This manual covers firmware versions 3 0X When contacting us about the product please provide us with The model marked in...

Страница 3: ...tting You can set a detection time which is the amount of time that an overcurrent must persist after the first detection of the overcurrent before the overcurrent protection OCP is activated By setti...

Страница 4: ...captures used in this manual may differ from the actual screens that appear on the PWX series The screen captures are merely examples The following markings are used in this manual Indicates a potent...

Страница 5: ...tory Default Settings Initialization 59 3 External Control Overview 62 About the J1 Connector 62 Output Terminal Insulation 64 When the output terminal is not grounded floating 64 When the output term...

Страница 6: ...6 PWX Variable Internal Resistance Feature 118 Setting 118 Variable range 119 Specifications 119 Appendix A Options 122 B Troubleshooting124...

Страница 7: ...the Communication Interface Man ual on the CD ROM How do I check the settings in preset memory Recalling preset memory entries p 56 How do I reset the PWX series to its fac tory default settings Fact...

Страница 8: ...the key has an LED p 55 8 CONFIG key Used to configure the various operating conditions the key has an LED p 42 B Used to recall and save the value of preset memory B the key has an LED p 55 9 PWR DS...

Страница 9: ...n Fault status Lights in red Standby status Lights in orange WEB identify status Blinks green No Name Function 1 DC OUTPUT Output connector p 20 2 USB USB port for controlling the PWX series remotely...

Страница 10: ...10 PWX This page is intentionally blank...

Страница 11: ...Installation and Preparation This chapter describes how to turn on the PWX series what kind of load cables to use and how to connect cables to the out put connectors...

Страница 12: ...ectric shock This product is a piece of equipment that conforms to IEC Safety Class I equipment that has a protective conductor terminal Be sure to earth ground the product to prevent electric shock T...

Страница 13: ...ch that cuts off the power supply from the switchboard Risk of fire Be sure to have a qualified engineer make the connection to the switchboard The switchboard breaker must meet the requirements shown...

Страница 14: ...rectly Pass the power cord through the INPUT terminal cover and fix the cord in place using the lock plate and screws Use the PWX screws to connect the INPUT terminal cover in place 4 Attach an approp...

Страница 15: ...tely 1 sec ond After a few seconds the PWX series enters the operation standby state the output value is displayed Inrush current When the POWER switch is turned on an inrush current of up to 70 A flo...

Страница 16: ...install the optional support angles KRB1 PWX SUPPORT ANGLE to support the PWX series We recommend that you keep all pieces that you remove from the PWX series You will need these pieces if you remove...

Страница 17: ...urrent from the load Therefore if a regenerative load such as an inverter converter or transformer is connected the output voltage increases and becomes unstable This can cause a malfunction For these...

Страница 18: ...d in series as shown in the following figure This cannot be used in conjunction with remote sensing PWX750ML Load with accumulated energy DRP Reverse current protection diode DRP CAUTION To protect th...

Страница 19: ...owable currents that have been reduced in consideration of the potential bundling of load cables Use these values as a guideline when connecting load cables Limitations of the remote sensing function...

Страница 20: ...h the OUTPUT terminals Even if you turn the output off or turn the POWER switch off if the bleeder on off set ting CF11 is set to oFF the voltage that was present when the output was on will remain at...

Страница 21: ...s that you are using For cables that are up to 10 mm in diameter Put the top and bottom halves of the OUTPUT terminal cover together so that the hole diameter is small For cables that are between 10 m...

Страница 22: ...nd bottom halves of the OUTPUT terminal cover have different shapes Remove the screws and then line up the half of the cover Top half of the cove Align the protrusion of the top half of the cover with...

Страница 23: ...terminals are at approximately the same electric potential as the nega tive output terminal Insert the cables so that the wire strands do not touch the chas sis when they stick out of the sensing term...

Страница 24: ...voltage When you perform remote sensing set the voltage of the sensing point across the load so that it does not exceed the rated output voltage If you are performing remote sensing with the voltage c...

Страница 25: ...illation The output fluctuates If the load current changes drastically in a pulse shaped pattern the output voltage may become large due to the wiring s inductance component You can reduce the inducta...

Страница 26: ...26 PWX This page is intentionally blank...

Страница 27: ...Basic Functions This chapter describes how to turn the out put on and off and the basic operations that you can perform from the front panel...

Страница 28: ...in the measured value display Power display In the measured value display press PWR DSPL to display the output power on the amme ter The output power is calculated from the measured output voltage an...

Страница 29: ...the output voltage to a value that is 95 of the OVP trip point or higher You cannot set the output current to a value that is 95 of the OCP trip point or higher The displayed current or voltage may no...

Страница 30: ...UT to output using the new settings p 48 p 71 You can use external control to turn the output on and off You can use the CONFIG settings to set the output on startup state CF12 prioritize CC or CV Out...

Страница 31: ...limited by the power limit POWER LIMIT approximately 105 of the rated output power and the output voltage and output current change depend ing on the load value See 35 30 25 20 15 10 5 0 0 10 20 30 4...

Страница 32: ...ut current PWX750MHF operating range PWX1500MH operating range MHF MH type Output voltage V Output current A 700 600 500 400 300 200 100 0 0 0 5 1 1 5 2 2 5 3 5 4 3 0 1 2 3 4 5 7 8 6 PWX750HF 750 W PW...

Страница 33: ...ess than current limit Is The actual current that flows is not necessarily equal to the specified value For loads in which transient peak current flows current Is must be set so that the peak value do...

Страница 34: ...If you try to increase the voltage above this point the crossover point is reached and the power supply automatically switches to CC mode To maintain oper ations in CV mode increase the current limit...

Страница 35: ...the PMX750ML is operating as a constant current power supply the CC LED lights Even when the output is on you can set the voltage and current by carrying out step5 and step6 while checking the actual...

Страница 36: ...rea lights to indicate that an alarm has occurred The voltmeter indicates the cause of the alarm The ALARM LED in the front panel display area blinks only when the power limit has been activated The O...

Страница 37: ...al The alarm signal is isolated from other terminals as it is through an open collector photocou pler Protection function activation Setting limitation functions You can use the CONFIG settings to app...

Страница 38: ...of OCP activation The PWX series OVP operates according to the output terminal voltage If you want to acti vate the protection function according to the voltage across the load take the voltage drop...

Страница 39: ...TPUT LED lights 4 Slowly turn the VOLTAGE knob clockwise When the output voltage exceeds the OVP trip point the front panel display area s ALARM LED lights and the OUTPUT LED blinks to indicate that t...

Страница 40: ...inalize the setting Overheat protection OHP Overheat protection2 OHP2 This protection function is activated when the PWX series internal temperature rises to an abnormal level When the PWX series is u...

Страница 41: ...power limit function has been activated the ALARM LED blinks An alarm signal is not transmitted Communication monitoring WATCHDOG p 49 The watchdog function monitors the SCPI command communication st...

Страница 42: ...nt display parameter A CF051 CC control using an Vext or Rext A CF061 CV control using an Vext or Rext A CF071 CV CC control range parameter A CF08 Range during voltage and current monitoring A CF091...

Страница 43: ...resistance feature factory option is installed 3 You can only specify this parameter only when the PWX series is being used as a slave unit 4 This parameter is affected only when the LAN interface se...

Страница 44: ...CONFIG until the measured value display appears Alternatively press OUTPUT or PWR DSPL If you are configuring a slave unit press CONFIG or PWR DSPL p 42 Some CONFIG parameters will be applied immediat...

Страница 45: ...when the PWX series is being used as a master unit Output voltage Output on off at power on Output current Constant current control using an Vext or Rext CF05 Overvoltage protection Constant voltage c...

Страница 46: ...CONFIG parameter if you forget what settings have been saved to a preset memory entry or if you want to view the saved settings You can only specify this parameter when the PWX series is being used a...

Страница 47: ...sed to turn output on and off This is set to oFF when the panel settings are reset CF00 and when a preset memory entry is recalled You can only specify this parameter when the PWX series is being used...

Страница 48: ...being used as a master unit CF13 Detection time of OCP activation p 38 Set the time when the overcurrent protection OCP is activated after an overcurrent is detected Set this in 100 ms steps CF14 Cur...

Страница 49: ...setting CF17 Communication monitor timer setting p 41 Sets the interval for monitoring SCPI command communication The communication monitoring function operates regardless of whether the product is i...

Страница 50: ...n the POWER switch off and on CF22 Emulation parameter during remote control Sets the emulation that is used during remote control If you have set the command language to legacy languages you can only...

Страница 51: ...channel function see the Communication Interface Manual on the included CD ROM CF30 to CF33 IP address display These parameters display the set IP addresses These parameters are only displayed when yo...

Страница 52: ...n use Set whether to use on 1 or not use off 0 the following DHCP server AUTO IP function automatic assignment and MANUAL IP function manual assignment If an IP address is not assigned through a DHCP...

Страница 53: ...ocol TCP port number setting Set the TCP port number of the SCPI RAW protocol for when the LAN interface is in use This parameter is displayed and can be set only when the LAN interface is in use This...

Страница 54: ...the RS232C baud rate This parameter is applied when you restart the PWX series Display Description 0b3E 0x0B3E 750W Model 1500W Model Display Description Display Description 1025 0x1025 1024 0x1024 Va...

Страница 55: ...the preset memory current p 38 3 Press OCP OVP The OCP OVP key lights and the OVP trip point and OCP trip point are displayed in the display area 4 While viewing the values displayed on the panel tur...

Страница 56: ...u want to recall the preset memory entry The SET LED and the contents voltage and current of the loaded preset memory that are shown in the display area blink If you press another memory key the conte...

Страница 57: ...you do not want the internal bleeder circuit to sink output current When you connect a battery you can pre vent excessive electrical discharges by turning the bleeder circuit off When using master sla...

Страница 58: ...269 mA 221 mA OFF 0 2 mA 0 3 mA 0 5 mA 0 7 mA 0 9 mA 1 1 mA 1 3 mA 1 5 mA 1 7 mA Vout Output terminal voltage Model Bleeder circuit Sink current 10 Vout1 20 Vout 50 Vout 100 Vout 200 Vout 230 Vout PW...

Страница 59: ...ngs Initialization If you hold down SHIFT LOCAL while you turn the POWER switch on the PWX series will be reset to the factory default settings The factory default settings are shown below Basic setti...

Страница 60: ...g is limited CF16 Panel display brightness setting 7 CF17 Communication monitor timer setting OFF Communication monitoring timer off CF183 Internal resistance setting OFF Variable internal resistance...

Страница 61: ...External Control This chapter explains external control and external monitoring using the J1 connector External Control...

Страница 62: ...tructed of connector parts made by AMP Simple pressure welding tools and contact removal tools are not included These items must be purchased separately For information about how to use these componen...

Страница 63: ...low level signal when power is turned on output through an open collector photocoupler 2 16 OUT ON STATUS On when output is on output through an open collector photocoupler 2 17 N C Not connected 18...

Страница 64: ...ave an insulation capacity greater than or equal to the isolation voltage of the PWX series WARNING Risk of electric shock For safety reasons even if the output terminal is grounded make sure that the...

Страница 65: ...rminal is connected to the chassis terminal The cable and load require an insulation capacity that is greater than or equal to the maximum output voltage of the PWX series For safety reasons connect o...

Страница 66: ...burn out Do not ground the Vext output that is leave it floating If you are connecting the shield to the Vext side do not connect the shield to the output ter minal of the PWX series 2 core shielded w...

Страница 67: ...e wire as short as possible If the wiring between the PWX series and the external contact is long it becomes easy for noise to influence the operation of the PWX series Even if you use cables that are...

Страница 68: ...o or in the range of 0 V to 10 V CF07 Hi External resistance Rext connection For Rext use a resistor that is rated at approximately 10 k 1 2 W or greater that has a low temperature coefficient and tha...

Страница 69: ...between the PWX series and the external contact is long it becomes easy for noise to influence the operation of the PWX series Even if you use cables that are designed to suppress noise the PWX serie...

Страница 70: ...ge of 0 V to 5 V CF07 Lo or in the range of 0 V to 10 V CF07 Hi External resistance Rext connection For Rext use a resistor that is rated at approximately 10 k 1 2 W or greater that has a low temperat...

Страница 71: ...states in this example a high signal is used to turn the output on External contact connection Use pins 18 and 19 of the J1 connector The open circuit voltage across pins 18 and 19 is approximately 5...

Страница 72: ...72 PWX Controlling the Output On and Off States For long distance wiring When you are wiring over a great distance use a small relay and extend the coil side of the relay S Extend this line Relay...

Страница 73: ...ross pins 6 and 19 is approximately 5 V The short cir cuit current across pins 6 and 19 is approximately 0 5 mA Use external contacts that have a contact rating greater than or equal to 0 5 mA at 5 Vd...

Страница 74: ...current across pins 5 and 19 is approximately 0 5 mA Use external contacts that have a contact rating greater than or equal to 0 5 mA at 5 Vdc If two or more units are floating and you are using a si...

Страница 75: ...equal to 60 V If connected for master slave parallel operation STATUS COM pin 1 of the J1 connector of the master unit will be connected to A COM pin 19 of the J1 connector of the slave unit it will n...

Страница 76: ...ries is in constant current mode This is the photocoupler open collector output 14 ALM STATUS This is set to low level when a protection function OVP OVP2 OCP OHP OHP2 FAN SEN AC FAIL SD is activated...

Страница 77: ...llel Series Operation This chapter describes the functions of series operation and the master slave par allel operations as well as the connection setup and operation procedures Parallel Series Operat...

Страница 78: ...ltmeters on the slave units display SLAV p 50 The master unit s ammeter displays the total of the currents of all the units connected in par allel For slave units the current display of each slave uni...

Страница 79: ...he entire system is turned off Slave unit The slave unit independently enters the alarm state and turns its output off The output does not turn off on the master and other slave units p 46 You can use...

Страница 80: ...output terminal is at ground potential secure an insulation capacity greater than or equal to this product s isolation volt age relative to the chassis Example of connecting two slave units 1 Decide...

Страница 81: ...he OUTPUT ter minals Attach the OUTPUT terminal cover after you finish wiring the load CAUTION When you connect the output terminals to the chassis terminals be sure to connect the same polarity outpu...

Страница 82: ...78 Use the master unit to set the voltage and current The current that is output is the sum of the currents of the master unit and the slave units When you set the number of units in master slave para...

Страница 83: ...limit CF15 Voltage setting limit Starting master slave parallel operation Turning power on 1 Turn the master unit s POWER switch on 2 Turn the POWER switch of each slave unit on 3 Operate the master u...

Страница 84: ...power is displayed on unit 1 and unit 2 External control Chapter 3 This is available External monitoring p 75 External monitoring of the output voltage V MON You can monitor the output voltage of eac...

Страница 85: ...CF03 SAFE Clearing alarms p 37 p 87 To clear alarms 1 press ALM CLR SHIFT SET 2 set pin 5 of the J1 connector to LOW 0 V to 0 5 V or shorted or 3 turn off unit 1 and unit 2 fix the problem that caused...

Страница 86: ...t 1 or unit 2 to the chassis terminal 6 Attach the OUTPUT terminal cover See WARNING Risk of electric shock Turn the POWER switch off before you touch the OUTPUT ter minals Attach the OUTPUT terminal...

Страница 87: ...rrent protec tion OCP on both units Specify the same values on the two units Starting series operation Turning the power on and off Turn the POWER switch on unit 1 and unit 2 on or off Turning the out...

Страница 88: ...88 PWX This page is intentionally blank...

Страница 89: ...Maintenance This chapter explains how to perform cali bration DELETE...

Страница 90: ...100 Output current offset 10 Output current full scale 100 Ammeter offset 0 Ammeter full scale 100 Required devices DC voltmeter DVM with a measurement accuracy of 0 02 or more Shunt resistor Environ...

Страница 91: ...rrors NI VISA by National Instruments Corporation Ver 5 0 3 or later Agilent VISA by Agilent Technologies Agilent IO Libraries Suite 16 0 or later KI VISA Ver 5 0 4 or later For details see the PWX Ca...

Страница 92: ...92 PWX This page is intentionally blank...

Страница 93: ...Specifications This chapter contains the specifications and gives the dimensions of the PWX series...

Страница 94: ...output power rated output current Rated load and no load are defined as follows In constant voltage mode when the output current is set to a value greater than or equal to the max imum output current...

Страница 95: ...t MAX 2 2 Excludes the charge current component that flows through the capacitor of the internal EMC filter circuit immediately after the POWER switch is turned on for approximately 1 ms 70 Apeak or l...

Страница 96: ...voltage 1 ms or less 7 ms or less Ripple noise 5 5 Measured using an RC 9131B 1 1 probe that conforms to the JEITA specifications At the rated output current p p 6 6 When the measurement frequency ban...

Страница 97: ...isplay OUTPUT ON OFF Output on OUTPUT LED lights in green Output off OUTPUT LED turns off The output is on and a protection function has been activated OUTPUT LED blinks in orange CV operation CV LED...

Страница 98: ...turned off when the problem that caused the alarm is fixed CF03 SAFE The specified protec tion operation is the same for the OHP FAN and AC FAIL alarms You cannot make separate settings for the OHP F...

Страница 99: ...open circuit Turn the output on using a HIGH 4 5 V to 5 V or open circuit turn the output off using a LOW 0 V to 0 5 V or short circuit Output shutdown control SHUT DOWN Turns the output off with a L...

Страница 100: ...ate 1200 2400 4800 9600 19200 38400 57600 and 115200 bps Data length 8 bits Stop bits 1 bit Parity bit None No flow control Program message terminator LF during reception CR LF during transmission USB...

Страница 101: ...o abnormalities at 1500 Vdc for 1 minute No abnormalities at 1600 Vdc for 1 minute No abnormalities at 2 000 Vdc for 1 minute Between input and Iso lated Analog Interface1 No abnormalities at 2650 Vac...

Страница 102: ...is a Class A equipment The PWX is intended for use in an industrial environment This product may cause in terference if used in residential areas Such use must be avoided unless the user takes special...

Страница 103: ...MAX485 19 09 422 8 16 65 404 8 15 94 M4 screw holes 4 Max screw insertion depth 6 mm 0 31 inches 10 0 39 12 0 47 21 0 83 43 1 69 44 1 73 10 32 screw holes 6 Max screw insertion depth 8 mm 0 31 inches...

Страница 104: ...Excludes the charge current component that flows through the capacitor of the internal EMC filter circuit imme diately after the POWER switch is turned on for approximately 1 ms 70 Apeak or less Powe...

Страница 105: ...set output voltage 1 ms or less 7 ms or less Ripple noise 5 5 Measured using an RC 9131B 1 1 probe that conforms to the JEITA specifications At the rated output current p p 6 6 When the measurement f...

Страница 106: ...ion display OUTPUT ON OFF Output on OUTPUT LED lights in green Output off OUTPUT LED turns off The output is on and a protection function has been activated OUTPUT LED blinks in orange CV operation CV...

Страница 107: ...the output turned off when the problem that caused the alarm is fixed CF03 SAFE The specified protection operation is the same for the OHP FAN and AC FAIL alarms You cannot make separate settings for...

Страница 108: ...ircuit Turn the output on using a HIGH 4 5 V to 5 V or open circuit turn the output off using a LOW 0 V to 0 5 V or short circuit Output shutdown control SHUT DOWN Turns the output off with a LOW 0 V...

Страница 109: ...Baud rate 1200 2400 4800 9600 19200 38400 57600 and 115200 bps Data length 8 bits Stop bits 1 bit Parity bit None No flow control Program message terminator LF during reception CR LF during transmiss...

Страница 110: ...lities at 1500 Vdc for 1 minute No abnormalities at 1600 Vdc for 1 minute No abnormalities at 2000 Vdc for 1 minute Between input and Iso lated Analog Interface 1 No abnormalities at 2650 Vac for 1 mi...

Страница 111: ...r 4 This is a Class A equipment The PWX is intended for use in an industrial environment This product may cause in terference if used in residential areas Such use must be avoided unless the user take...

Страница 112: ...9 09 422 8 16 65 404 8 15 94 M4 screw holes 4 Max screw insertion depth 6 mm 0 31 inches 10 0 39 12 0 47 21 0 83 43 1 69 44 1 73 10 32 screw holes 6 Max screw insertion depth 8 mm 0 31 inches 15 0 59...

Страница 113: ...Factory Option This chapter describes the isolated analog interface and variable internal resistance feature which are factory options Isolated Analog Interface...

Страница 114: ...ntrol Turning output on and off using an external contact Output shutdown control using an external contact Output voltage monitoring Output current monitoring The following two types of isolated anal...

Страница 115: ...control Current control 1 VPGM_IS Output voltage control 0 V to 5 V or 0 V to 10 V1 4 mA to 20 mA2 2 VPGM_RTN_IS3 Return for pin 1 3 IPGM_IS Output current control 0 V to 5 V or 0 V to 10 V1 4 mA to 2...

Страница 116: ...06 CV control using an external voltage or exter nal resistance on CF09 External control parameter for turning output on and off on CF07 CC or CV control range Lo 0 V to 5 V or Hi 0 V to 10 V CF08 Ran...

Страница 117: ...solated monitor signal output Voltage control Isolated voltage monitor VMON_IS 0 V to 5 V 0 V to 10 V Isolated current monitor IMON_IS 0 V to 5 V 0 V to 10 V Isolated monitor common Accuracy 4 of rtg...

Страница 118: ...et the internal resistance You can change the resolution of the VOLTAGE CURRENT knob Hold down SHIFT while you turn the VOLTAGE knob to make large changes to the value If you are not using the variabl...

Страница 119: ...50HF Rint min 0 00011 1 When the value is set from the front panel the least significant digit is not shown on the panel display The value varies at a higher resolution than what is shown and the leas...

Страница 120: ...120 PWX This page is intentionally blank...

Страница 121: ...Appendix A Options B Troubleshooting...

Страница 122: ...rack Power cord This is the power cord that is used to connect the product to the AC line CE non compliant Adapter cable RD 8P 9P This is an adapter cable for connecting a D sub 9 pin RS232C cable to...

Страница 123: ...al cable This cable is used when you perform parallel operations The following three types are avail able PC02 PWX for operating three units in parallel PC01 PWX for operating two units in parallel PC...

Страница 124: ...con tact to turn output on and off Yes Use the external contact to turn output on p 71 No Set the external control parameter for turn ing output on and off to off CF09 oFF p 47 Even when the PWX serie...

Страница 125: ...re you using master slave parallel opera tion Compared to independent operation the performance degrades slightly during master slave parallel operation Are the remote sensing cables and the sensing c...

Страница 126: ...ables p 23 Are you using remote sensing with long load cables Set up the environment so that the voltage drop in each load cable is within the com pensation voltage range 4 V for a single line p 24 Ar...

Страница 127: ...obtained from the DHCP server Is the LAN LED lit in orange or red If it is lit in orange the PWX series is wait ing for a response from the DHCP server If it turns red afterward the PWX series may hav...

Страница 128: ...128 PWX This page is intentionally blank...

Страница 129: ...ing the settings 52 Resetting the LAN interface settings 52 SCPI RAW 53 LAN interface parameter 50 M MAC address display 52 MANUAL IP setting manual IP address 53 memory contents display 46 memory fun...

Страница 130: ...51 SD 41 SENSE 41 setting limit UVL 40 setting limits 37 settings reset 45 T troubleshooting 124 U UVL 40 V vendor ID display 54 version 2 VMCB Virtual Multi Channel Bus channel 51 domain 51 voltage m...

Страница 131: ...w copy can be provided for a fee In either case please contact your Kikusui agent or distributor At that time inform your agent or distributor of the Part No written on the front cover of this manual...

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