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PMX_MULTI

User’s Manual

69

Parallel Operation and Series Operation | Overview of Parallel Operation

Connections for parallel operation

Connecting the Load

1

Turn the POWER switch off.

2

Connect the load cables

to the CH2 output terminals.

3

Connect the load cables of CH2 to the load.

Use load cables that have sufficient current capacity. If you are connecting to a relay terminal
block, use wires with the same length and cross-sectional area, and wire them as short as possible
(50 cm or less).

4

Connect a CH2 output terminal (positive or negative) to the chassis terminal with a
short bar.

Ground the output terminal of only one of the channels.
Do not ground the output terminals of both channels.

If you are using the units under floating conditions, do not connect the terminals.

5

Attach the output terminal cover.

This completes the connections.

WARNING

Risk of electric shock. Turn the POWER switch off before you touch the output termi-
nals. Attach the output terminal cover after you finish wiring the load.

CAUTION

• If you are connecting the output terminal to the chassis terminal, be sure to connect the

output terminal of one of the channels to the chassis terminal.

• To prevent oscillation, connect an electrolytic capacitor with a capacitance of a few hun-

dred µF to a few ten thousand µF across the load as necessary. If the wires are long, the
wiring inductance and capacitance can cause phase shifting at a level that can not be
ignored. This may lead to oscillation.
Use an electrolytic capacitor that has a withstand voltage that is at least 120 % of the rated
output voltage.

• Twist the positive and negative cables together, and make the connection to the load as

short as possible. Oscillation may occur as a result of wiring inductance.

• Connect the load wires to the CH2 output terminals. Connecting to CH1 can cause dam-

age.

Load or
relay terminal block

PMX

Output terminal

CH2

Chassis terminal

Output terminal

CH1

Chassis terminal

Connect the output terminal of
one of the channels to the
chassis terminal.

Load connection for parallel operation (CH1 and CH2)

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Содержание PMX32-3DU

Страница 1: ...tput Regulated DC Power Supply PMX Series Multiple output Contents 5 Component Names 8 Installation 13 Basic Functions 26 External Control 60 Parallel Operation and Series Operation 67 Maintenance 77...

Страница 2: ...ion This document contains general safety precautions Keep them in mind and make sure to observe them PDF and HTML files are included in the accompanying CD ROM You can view the PDF files using Adobe...

Страница 3: ...oad characteristics Memory You can save up to three sets of output settings the combination of the voltage current OVP OCP on delay and off delay You can simply select a memory entry that you want to...

Страница 4: ...F indicate the CONFIG parameter number The value after the colon indicates the selected setting SHIFT key name Indicates an operation that requires you to press a key while holding down SHIFT When ins...

Страница 5: ...ction Functions and Alarms 37 Alarm occurrence and clearing alarms 37 Setting and displaying the protection functions 38 CONFIG Settings 42 CONFIG parameter details 45 Memory Function 52 Saving settin...

Страница 6: ...ion function 89 Signal output 89 Control functions 90 Sensing 90 Parallel operation and series operation 91 Other functions 92 Interface 93 General specifications 94 External dimensions 95 Appendix Fa...

Страница 7: ...PMX_MULTI User s Manual 7 This page is intentionally blank...

Страница 8: ...s OFF CC A s ON PARA SERI TRACKING12 CV V s OFF CC A s ON PARA SERI TRACKING12 AWG 20 28 STRIP GAUGE 8mm DC OUTPUT SER PRL 0 32V 0 6A 0 64V 0 3A 0 32V 0 3A 0 32V 0 3A SENSE 2 SENSE 1 OFF ON OFF ON S...

Страница 9: ...o make fine voltage value adjustments p 28 6 CURRENT knob Used to set the current value or change the value of a CONFIG parameter p 28 FINE Used to make fine current value adjustments p 28 7 POWER swi...

Страница 10: ...output is off ON appears when output is on green p 29 4 OUTPUT key Turns on or off the output of each channel p 29 5 CV Appears in constant voltage mode p 36 6 CC Appears in constant current mode p 3...

Страница 11: ...d to configure various operating conditions CONFIG p 42 B Recalls or saves memory B values p 52 8 LOCK key Turns on or off the key lock p 54 C Recalls or saves memory C values p 52 9 LOCAL key Switche...

Страница 12: ...C port for remote control 5 LAN port LAN port for remote control 6 CONTROL TERMINAL External control terminal block p 61 50 60Hz AC INPUT KIKUSUI ELECTRONICS CORP MADE IN CHINA LINE VOLTAGE 100V 117V...

Страница 13: ...ctric shock This product is IEC Safety Class I equipment equipment with a protective conduc tor terminal To prevent electric shock be sure to connect the protective conductor terminal of the product t...

Страница 14: ...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 types...

Страница 15: ...The sink current is reduced at a low output terminal voltage Hardly any sink current flows near 0 V The sink current indicated here is the value obtained when an external voltage with the same value...

Страница 16: ...he potential bundling of load cables Use these values as a guide line when connecting load cables Limitations of the remote sensing function All wires have resistance As the wire becomes longer or the...

Страница 17: ...e CONTROL TERMINAL on the rear panel are isolated from the chassis terminal and out put terminal of this product Cables and devices that are connected to these pins must have an insulation capacity gr...

Страница 18: ...ltage of the PMX seres multiple output with respect to the chassis The same holds true when the negative terminal is connected to the chassis terminal The cable and load require an insulation capacity...

Страница 19: ...s in see When the output terminal is not grounded floating on page 17 before use To reduce the influence of noise on the output keep the cables as short as possible If possible twist the positive and...

Страница 20: ...to the Output Terminals 5 Attach the output terminal cover Attach the output terminal cover using the screws included with the output terminal cover This completes the connections Output terminal cove...

Страница 21: ...and then the CH2 voltmeter and ammeter display the following information in sequence the rated voltage rated current and type the firmware version number and then the build number Each item is displa...

Страница 22: ...ly before the POWER switch was turned off You can use the CONFIG settings CF01 to select the output state of the product when the POWER switch is turned on p 45 If the POWER switch is turned off immed...

Страница 23: ...nd other effects caused by the load cable resistance You can use the product remote sensing feature to compensate up to 0 6 V for a single line Select a load cable that has sufficient current capacity...

Страница 24: ...t an electrolytic capacitor across the load as necessary Output terminal Chassis terminal Sensing terminal PMX Load Shielded cable ON position WARNING Never wire the sensing terminals while the POWER...

Страница 25: ...iring s inductance component You can reduce the inductance component by twisting the load cables which stabilizes the voltage How ever if this does not correct the problem connect an electrolytic capa...

Страница 26: ...e outputs of all channels are set off and you turn the VOLTAGE or CURRENT knob the SET indicator appears and the setting display appears Setting display When you press SET the SET indicator appears in...

Страница 27: ...y for each channel the same parameter number is displayed for all channels Alarm display When an alarm is activated by a protection function the ALARM indicator red and the cause of the alarm are disp...

Страница 28: ...t FINE You can change the resolution of the VOLTAGE and CURRENT knobs Hold down SHIFT while you turn the VOLTAGE knob or CURRENT knob to make small changes to the value FINE mode The following table s...

Страница 29: ...ue You can set the rise time speed that is applied when you change a value Using CONFIG setting CF07 select 100 ms CF07 SLOW or 10 ms CF07 FAST p 46 The factory default setting is 100 ms You can use e...

Страница 30: ...When in operation DELAY appears During the delay time until the output turns on or off the DELAY indicator blinks in the display area CH1 CH2 CH3 CH4 2 0 4 2 0 4 6 SET value Delay time s On delay time...

Страница 31: ...time at output off very depending on the output and load con ditions The timing charts above ignore the rise and fall times Because there is time for internal processing from when OUTPUT ALL is presse...

Страница 32: ...on delay time using the VOLTAGE knob and the output off delay time using the CURRENT knob Delay time setting range 0 1 s to 99 9 s Resolution 1 s fine mode 0 1 s The voltmeter shows the output on dela...

Страница 33: ...ress DELAY DELAY appears in the display area 2 To activate the output on delay press OUTPUT ALL to turn the output on When the output on delay is activated DELAY blinks in the display area When all ch...

Страница 34: ...I Vs RL and is a current that is less than current limit Is The actual current that flows is not necessarily equal to the specified value For loads in which transient overcurrent flows current limit...

Страница 35: ...tain Vs 5 A 8 40 V 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 main tain operations in CV mode increase...

Страница 36: ...on SET disappears from the display area and ON appears When the PMX is operating as a con stant voltage power supply CV green is displayed When the PMX is operating as a constant current power supply...

Страница 37: ...the cause of alarm is not displayed An alarm signal is output When an alarm occurs an alarm signal is output from pin 12 of the CONTROL TERMINAL Clearing alarms Press ALM CLR SHIFT SET or turn off th...

Страница 38: ...esent OVP trip point 2 Press SELECT to select the channel you want to configure The selected channel is indicated with brackets 3 Turn the VOLTAGE knob to set the OVP trip point OVP setting range 10 t...

Страница 39: ...ain Overcurrent protection OCP Overcurrent protection OCP is activated when the output current exceeds the set current OCP trip point Immediately after you purchase the product or immediately after a...

Страница 40: ...ea 2 Set the output current to a value lower than the OCP trip point 3 Press OUTPUT to turn output on ON green appears in the display area 4 Slowly turn the CURRENT knob clockwise until the OCP is act...

Страница 41: ...tate turn off communication monitoring before clearing the alarm Alarm input ALARM IN The output of all channels is turned off when the PMX receives an alarm signal 0 5 V or less or shorted with pin 1...

Страница 42: ...USB USB USB interface B CF22 232 RS232C RS232C interface B CF23 TRAC Trace SCPI communication error display A CF24 WDOG Watchdog Communication monitoring watchdog timer A CF25 BEEP Beep Buzzer on off...

Страница 43: ...232C Firmware CF00 CF02 CF09 PON DTRC LAN USB BEEP VID PID BAUD CF20 CF21 CF25 CF50 CF51 Mnemonic display VOLTAGE knob LOCAL key VOLTAGE knob LOCAL key VOLTAGE knob LOCAL key VOLTAGE knob VOLTAGE knob...

Страница 44: ...VOLTAGE knob while holding down the LOCAL key switches the CONFIG parameter while retaining the mne monic display 2 Turn the CURRENT knob to change the value of the parameter 3 To specify or display...

Страница 45: ...y not turn on when the power is turned on even after the power is turned off with the output turned on CF02 MEM Memory content display Sets whether the PMX will show the saved contents in the memory b...

Страница 46: ...can set the rise time that is applied when you change a value p 29 Can be set separately for each channel If you specify FAST the rising waveform may become unstable and distort Display Description LO...

Страница 47: ...ction even when a LAN cable is connected To apply the setting turn off the power and then turn it back on CF21 USB USB interface Enables or disables the USB interface Setting this parameter to OFF dis...

Страница 48: ...gardless of whether the product is in remote or local panel control mode If you are not using remote control commands set this to OFF CF25 BEEP Buzzer on or off Turns the buzzer on and off The buzzer...

Страница 49: ...l be cleared and the PMX will be in a security disabled state If the LAN LED turns red p 9 set the settings again For details on the LAN interface settings see the Communication Interface Manual on th...

Страница 50: ...APPL Apply using CF40 CF46 SUB IP address subnet mask If you want to set the IP address manually MANUAL IP set the subnet mask prefix To do so use CF41 to set MANUAL IP to on To apply the setting tur...

Страница 51: ...display Displays the firmware version and build number The firmware version is shown in the CH1 display area and the build number in the CH2 display area Display Vendor ID 0B3E 0b3E 0x0B3E Model Displ...

Страница 52: ...ing the panel display turn the VOLTAGE and CURRENT knobs to set the voltage current OVP OCP and output on delay off delay 4 To set other channels repeat step 1 and step 3 5 Hold down memory key A SHIF...

Страница 53: ...nts of the mem ory CF02 ON 2 Press the key of the memory you want to recall from A SHIFT OVP OCP B SHIFT CONFIG or C SHIFT LOCK The selected memory area A B or C blinks 3 Check the displayed settings...

Страница 54: ...a Key lock is enabled To release the key lock hold down LOCK until LOCK disappears Tracking Function The tracking function varies the outputs simultaneously The outputs of other channels change simult...

Страница 55: ...e reference channel with the SELECT key and changing the value Here we will use TRACKING 1 on CH1 and CH2 of a PMX32 2QU Example 1 Settings CH1 25 00 V CH2 30 00 V The reference channel is set to CH1...

Страница 56: ...is indicated with brackets 6 Press the OUTPUT key of the channel that will operate in tracking mode to turn the output on 7 Based on the output of the reference channel turn the rotary knob to set th...

Страница 57: ...100 the outputs of the target channels also return to their original values Example Here we will use TRACKING 2 on CH1 and CH2 of a PMX32 2QU When you turn the rotary knob during tracking operation t...

Страница 58: ...how 100 0 6 Press the OUTPUT key of the channel that will operate in tracking mode to turn the output on 7 Based on the percentage of the reference channel turn the rotary knob to set the desired outp...

Страница 59: ...ontrol the product from a virtual front panel For details on remote control see the Communication Interface Manual Switching from Remote Mode to Local Mode When the product is being controlled remotel...

Страница 60: ...Control The CONTROL TERMINAL on the rear panel can be used to perform the following external controls Turning output on and off using an external contact Alarm input using an external contact External...

Страница 61: ...0 08 mm2 AWG28 to 0 52 mm2 AWG20 Flat blade screwdriver Tip thickness 0 5 mm Wire stripper A wire stripper that matches the wires listed above WARNING Risk of electric shock and damage to internal ci...

Страница 62: ...OHP WATCHDOG is activated or when an alarm signal ALARM IN is received 7 STATUS COM Status signal common for pins 1 to 6 8 OUTPUT ON OFF CONTROL CH1 Output on off control using external contact input...

Страница 63: ...pin 11 CH4 of the CONTROL TERMINAL is set to LOW level 0 V to 0 5 V or is shorted the output is turned on Turn the output on with a HIGH level signal CF05 HI When pin 8 CH1 pin 9 CH2 pin 10 CH3 or pi...

Страница 64: ...approxi mately 3 5 V and the short circuit current is approxi mately 0 75 mA Use external contacts that have a contact rating greater than or equal to 1 mA at 5 Vdc For long distance wiring When you a...

Страница 65: ...nt is approximately 0 75 mA Use external contacts that have a contact rating greater than or equal to 1 mA at 5 Vdc If two or more channels are floating and you are using a single external contact to...

Страница 66: ...STATUS CH1 This is set to LOW level when the CH1 output is turned on Photocoupler open collector output 2 OUTPUT ON STATUS CH2 This is set to LOW level when the CH2 output is turned on Photocoupler op...

Страница 67: ...shows SLAVE Remote sensing This is available p 23 The sensing terminal of CH2 master can be used Memory This is available p 52 The values set on CH2 master during parallel operation can be saved and r...

Страница 68: ...ng parallel operation p 37 Clearing alarms Press ALM CLR SHIFT SET or turn the POWER switch off and then on If you do not resolve the cause of the alarm an alarm will occur again If an alarm still occ...

Страница 69: ...t termi nals Attach the output terminal cover after you finish wiring the load CAUTION If you are connecting the output terminal to the chassis terminal be sure to connect the output terminal of one o...

Страница 70: ...the tracking function is enabled Disable the tracking function 1 Turn on the POWER switch of this product 2 Press SHIFT PRL to switch to parallel operation mode The CH1 voltmeter shows SLAVE and the C...

Страница 71: ...to disable the parallel operation mode SLAVE disappears from the CH1 voltmeter and PRL from the CH2 display area 3 Turn the POWER switch off CAUTION If you want to turn the POWER switch back on wait...

Страница 72: ...es internally When used as positive and negative power supplies the specifi cations may not be met The current limit of the CH1 output terminal and that of CH2 master are different Panel display durin...

Страница 73: ...is available p 60 To perform output on off control use pin 9 CH2 and pin 13 Open pin 8 CH1 Alarms Alarms that are detected on a channel are also detected during series operation p 37 Clearing alarms A...

Страница 74: ...switch off before you touch the output termi nals Attach the output terminal cover after you finish wiring the load CAUTION Risk of damage If you are connecting the output terminal to the chassis term...

Страница 75: ...tracking function is enabled Disable the tracking function 1 Turn on the POWER switch of this product 2 Press SHIFT SER to switch to series operation mode The CH1 voltmeter shows SLAVE and the CH2 di...

Страница 76: ...to disable the series operation mode SLAVE disappears from the CH1 voltmeter and SER from the CH2 display area 3 Turn the POWER switch off CAUTION If you want to turn the POWER switch back on wait at...

Страница 77: ...dity 80 rh or less To minimize the calibration error due to initial drift warm up the product with the current running for at least 30 minutes before calibration In addition warm up the DVM and shunt...

Страница 78: ...libration 1 Turn the POWER switch off 2 Connect a shunt or ammeter to the output ter minals and connect a DVM across it WARNING Risk of electric shock Turn the POWER switch off before you touch the ou...

Страница 79: ...ress LOCK The blinking stops and the product returns to calibration mode 6 To finish calibration turn off the POWER switch The offset and full scale values affect all calibration parameters Be sure to...

Страница 80: ...CURRENT knob to match the product s voltage reading to the DVM reading 4 Use the VOLTAGE knob to select DV T and turn on the output 5 Turn the CURRENT knob to match the product s voltage reading to t...

Страница 81: ...3 Turn the CURRENT knob to match the product s current reading to the DVM reading 4 Use the VOLTAGE knob to select DC T and turn on the output 5 Turn the CURRENT knob to match the product s current re...

Страница 82: ...out put terminals and connect a DVM across it WARNING Risk of electric shock Turn the POWER switch off before you touch the output terminals Connect the output terminal to the chassis terminal PMX Out...

Страница 83: ...ion screen for normal operation 5 Press SET to make CAL blink on the CH2 voltmeter and SAVE blink on the ammeter 6 To save the calibration data press SET again Otherwise press LOCK The blinking stops...

Страница 84: ...CH2 output 4 Turn the CURRENT knob to set the DVM reading to 100 of the rated output volt age Current calibration for parallel operation offset and full scale 1 Use the VOLTAGEob to select SC B and t...

Страница 85: ...to an open load no load being connected In constant current mode when the output voltage is set to a value greater than or equal to the maxi mum output voltage with rated output current Rated load Re...

Страница 86: ...600 V CH2 33 600 V 33 600 V 33 600 V CH3 6 300 V 18 900 V CH4 18 900 V Resolution 1 mV Voltage setting accuracy 1 0 03 set 5 mV Input line regulation 2 CH1 3 mV 3 mV 3 mV CH2 3 mV 3 mV 3 mV CH3 1 mV 1...

Страница 87: ...nged from no load to rated load at the rated output voltage The value is measured at the sensing point 4 The amount of time required for the output voltage to return to a value within rated output vol...

Страница 88: ...during output on delay off delay DELAY is displayed after the output on delay off delay has passed CV operation CV display green CC operation CC display red Alarm operation Displays ALARM red when a...

Страница 89: ...ge 10 to 110 of the rated output current Setting accuracy 1 of rating Resolution 0 1 mA Overheat protection OHP Action Turns the output off displays OHP and displays ALARM red Communication monitorrin...

Страница 90: ...0 5 V or shorted output off when set to HIGH 4 5 V or 5 V or open Positive logic Output on when set to HIGH 4 5 V to 5 V or open output off when set to LOW 0 V or 0 5 V or shorted Alarm input ALARM I...

Страница 91: ...ixed decimal point Display accuracy 1 0 5 of reading 10 digit Ammeter Maximum display 9 999 fixed decimal point Display accuracy 1 1 of reading 10 digit Series operation Applicable channels Master CH2...

Страница 92: ...gs key lock Selectable from the following three modes Loc1 Lock all keys except the OUTPUT and memory A B and C keys Loc2 Lock all keys except the OUTPUT key Loc3 Lock all keys and the rotary knob Tra...

Страница 93: ...n LF during transmission USB Hardware Standard type B socket Complies with the USB 2 0 specifications data rate 12 Mbps full speed Program message ter minator LF or EOM during reception LF EOM during...

Страница 94: ...is No abnormalities at 1500 Vdc for 1 minute Insulation resistance Between the primary circuit and chassis 500 Vdc 30 M or greater Between the primary and secondary circuits Between the second ary cir...

Страница 95: ...ion inductive and or capacitive coupling for the treat ment of material or inspection analysis purpose 5 This product confirms to Class I Be sure to ground the protective conductor terminal of this pr...

Страница 96: ...3 Key lock content LOC3 Lock all keys and the rotary knob CF04 1 1 Can be set separately for each channel External control for turning output on off OFF not controlled CF05 1 External control logic fo...

Страница 97: ...commend that you keep all pieces that you remove from the product You will need these pieces if you remove the product from the rack mount adapter When you re attach the original feet use the pieces t...

Страница 98: ...wo handle covers 2 Unfasten the two screws and remove the entire handle 3 While pulling down the rubber feet four locations loosen their screw pin with a screwdriver and remove the feet This completes...

Страница 99: ...e S1 switch on the rear panel in the correct position The switch has not been returned to the correct posi tion after performing mainte nance Set the S1 switch on the rear panel to the correct positio...

Страница 100: ...nsing cables or load cables have poor contact or they are broken Turn the POWER switch off and check conditions of the cables and the wiring p 19 p 24 Does the load current have peaks or is it pulse s...

Страница 101: ...ly p 61 The external voltage is exces sive Apply the correct voltage Is the overheat protection OHP function activated The internal temperature is abnormally high Check the operating conditions After...

Страница 102: ...en the POWER switch is turned on does the LAN inter face display persist for more than 30 seconds Is LAN shown in orange or red in the display area If it is shown in orange the product is waiting for...

Страница 103: ...plying settings 49 resetting 49 M MAC address display 49 MANUAL IP setting 50 memory contents display 45 O OCP 39 OHP 41 output delay time 30 output on and off external control 46 output on startup st...

Страница 104: ...e please contact your Kikusui agent or distributor At that time inform your agent or distrib utor of the Part No written on the front cover of this manual Every effort has been made to ensure the accu...

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