Compact High-Voltage DC Electronic Loads

PLZ-5WH2 Series

Maximum operating voltage: 1000 V. Ideal for evaluating high-capacity power supplies, large-capacity batteries, and more!

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GPIB

(Option)

RS232C

USB

DRIVERS

LAN

Product Overview

Testing with hyper-realistic load simulation made possible!

The PLZ-5WH2 high-power DC electronic load series is where durable, reliable ingenuity meets multifunctional, high-power design.Providing 5 variety of power range line-ups, from a 1 kW benchtop style model, to a high-power model that can sink up to 20 kW of power in a single unit.

You can easily select the applicable power range according to the load. Load simulation can be achieved faster than ever before thanks to the reliable, high-speed design of the PLZ-5WH2 current control circuits. Accurate current measures can be made with extremely high-setting resolution. A color LCD display allows for highly visible, user-friendly front-panel operation. RS232C, USB, and LAN digital inter faces are included as standard for simple integration into any system.

Multifunctional Electronic Load (CC/CV/CR/CP)

Features

Operation mode

The PLZ-5WH2 series has the following five Operation modes. In Operation mode other than +CV mode, ” UVPL* ” can be set to control Current so that the voltage does not fall below the UVP setting or less due to excessive current flow, and “UVPT” can be set to load-off. UVPL” is the “+CV mode” in the PLZ-5W series.

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Constant current (CC) mode	When a current value is specified, the current is kept at that value even when the voltage changes.
Constant resistance (CR) mode	When a conductance value is specified, the product sinks the current proportional to the voltage variation by using the value as a proportionality constant.
Constant voltage (CV) mode	When a voltage value is specified, the product runs the current so that the voltage is kept at that value.
Constant power (CP) mode	When a power value is specified, the product runs the current so that the power is kept at that value.
Arbitrary I-V characteristics (ARB) mode	The desired load characteristics can be set by specifying multiple arbitrary voltage values and current values as I-V characteristics.

Arbitrary I-V Characteristics (ARB) Mode

In ARB mode, arbitrary I-V characteristics can be set by registering multiple I-V characteristic points (pairs of voltage and current values). Vales can be registered from 3 to 100, and linear interpolation is performed between the values. Minimum voltage (0.00V), current (0.00A) and the maximum viktage (1010.00V) are fixed.

Maximum Slew Rate of 20 A/μs

Rise time to Rated current is 20A/μs. Supports high-speed transient response tests, which are becoming increasingly important in power supply evaluations. In case of PLZ20005WH2

Up to 100 kW with parallel operation (Max. 5 units)

Parallel operation can be connected with a single parallel operation cable *! Flexible “high capacity” up to 5 units even with different models! (Max. 100kW, 2000A) *Needed between models to be connected. 12kW/20kW models come standard; 1kW/2kW/4kW models are optional.

Wide Ranging Operating Voltage up to 1000 V

Operating voltage ranges from 10 V to 1000 V. The minimum operating voltage required to sink current is 1.5 V.

Communication Interface

LAN (LXI)/USB/RS232C interface standard *GPIB (option)

Use a browser from a PC, smartphone, or tablet to access the web server built into the PLZ-5WH2 series for convenient control and monitoring.

Load On/Off

The following load on/off settings are available in addition to standard operations that can be carefully adjusted to fit the needs of any test environment.

Start with “load on” when power is turned on
Display elapsed “load on” time
Auto “load off” when time limit is reached
Control “load on/off” with external controls such as relays
“Load off” by specifying conditions (Cutoff function)

Cutoff function

The cutoff function allows the user to enable “load off” once the elapsed time/voltage drop/integrated current/integrated power has been reached after “load on”. Multiple factors can be selected, with load off being implemented after the first requirement is met.

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Elapsed time	The load turns off when the elapsed time value reaches the specified value.
Voltage drop*	The load turns off when the voltmeter value reaches the specified value.
Integrated current	The load turns off when the ampere-hour meter value reaches the specified value.
Integrated power	The load turns off when the watt-hour meter value reaches the specified value.

Changing the Response Speed

Set the response speed for CV, CR, or ARB mode according to the DUT’s conditions and application.

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Item		Description
Response	Voltage	Set the response speed for CV mode: Normal, Fast
	Conductance	Set the response speed for CR mode: Normal, Fast
	ARB	Set the response speed for ARB mode. The value is the filter response time. Select OFF for no filter. OFF, 500 μs, 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, 50 ms, 100 ms

Soft start function

“Soft start” is a function that controls the rise time of the load current. “Soft start” functions only when all the following conditions are met:

The rise time of the soft start has been set.
“Load on” state is in constant current (CC) mode.
When there is an input that exceeds the minimum operating condition after the load input terminal has no input.

If the load current rises sharply, the DUT output may become unstable or the DUT’s overcurrent protection circuit may be activated. In such situations, it is possible to make the load current rise slowly only when the device is activated.

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Operation mode	CC
Time setting range	500 μs, 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, 50 ms, 100 ms, or off

Data Logging Function

The data logging function allows the user to log measurement values (current, voltage, power) in the internal memory, and display logged data on an LCD screen (Table) as a chart (Chart). By setting measurement recording conditions, you can control the timing that measurements are recorded.

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Condition	Setting range	Description
Trigger	–	Set the measurement recording timing and the number of times to record measurements.
Source	–	Event (trigger source) that defines the measurement recording condition. Recording starts after the Initiate key is pressed and a trigger is received.
	Immediate	Pressing Initiate applies a trigger immediately.
	BUS	Applies a trigger when a TRG command is received from a PC or when the TRG key on the front panel is pressed.
	DIGITAL2*	Applies a trigger when a signal is received at pin 13 of the EXT CONT connector.
	MSync	The triger-application timinig is synced between PLZ-5WH2 units that are synchronized.
	TALink	Applies a trigger when a step is executed if Generate is set to TALink in the sequence step settings
	Load Off	Applies a trigger when the load is turned off.
Count	1 to 65536	The number of times to recorded measurements.
Delay	0 μs to 100 s (resolution: 10 μs)	The delay time from trigger application until measurement recording.
Interval	Disable/ Enable	Sets whether to insert an interval between recordings when Count is 2 or higher.
Interval Time	10 μs to 3600 s (resolution: 10 μs)	Recording interval time when Interval is set to Enable.
Sense Aperture	10 μs to 1 s (resolution: 10 μs)	Recording time per session. The average value over time is recorded.

*Only when Direction of Digital 2 is set to Input

Integrated Data Function

Time elapsed, integrated current and integrated power can be logged. Logging (integration) can be coordinated to start/finish when the load turns on/off or during the start or end of a sequence. Logging can also be controlled arbitrarily.

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Item	Setting range	Description
Integral Gate	–	Set the integrated data recording period.
	None	Integrated data recording is started/stopped manually.
	Load On	Recording is started/stopped automatically in synchronization with load on/load off. Or, recording is started or stopped manually.
	Program Run	Recording is started/stopped automatically in synchronization with sequence execution start/stop. Or, recording is started or stopped manually.
Reset	–	Selects the integrated data reset method. If the unit is restarted, integrated data is reset.
	Manual	Integrated data is reset when the “Reset” key is pressed.
	Auto	Integrated data is automatically reset before the start of recordings. Or, integrated data is reset when the “Reset” key is pressed.

Saving Measurement Data

Measurement data can be stored in CSV format to a USB memory device.

Pulse function

Pulse function refers to the operation of executing two settings repetitively. It is suitable for transient response characteristics testing of large capacity power supplies and batteries. When the pulse operation is in progress, a trigger signal is output from the TRIG OUT connector on the front panel. You can set this regardless of whether the load is on or off. This function operates in CC and CR modes. The pulse amplitude is set with a value or a percentage of the load value.

When the pulse operation is in progress, a trigger signal is output for 10 μs from the TRIG OUT connector on the front panel when the current amplitude changes from low (Depth) to high (Set) level.

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Operation mode		CC and CR
Frequency setting range		1.0 Hz to 10.0 kHz
Frequency setting resolution*	1 Hz to 10 Hz	0.1Hz
	11Hz to 100 Hz	1Hz
	110Hz to 1000 Hz	10Hz
	1.1kHz to 10.0 kHz	0.1kHz

Sine Function

The sine function varies the current sinusoidally. It is suitable for superposed ripple testing of large capacity power supplies and batteries. When a sine operation is in progress, a trigger signal is output from the TRIG OUT connector on the front panel. You can set this regardless of whether the load is on or off. This function operates in CC mode. You cannot set the slew rate. Set the sine amplitude with a value.

When a sine operation is in progress, a trigger signal is output for 10 μs from the TRIG OUT connector on the front panel when the current passes through the Set value on the rising edge (sine wave phase at 0 degrees).

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Operation mode		CC
Frequency setting range		1 Hz to 1 kHz, 2 kHz, 5 kHz, 10 kHz
Frequency setting resolution*	1 Hz to 10 Hz	1Hz
	20 Hz to 100 Hz	10Hz
	200 Hz to 1000 Hz	100 Hz
	1000 Hz to	2 kHz, 5 kHz, 10 kHz

Sequence function

A sequence consists of programs and steps. A program is a collection of steps. Steps are executed in order one at a time, starting from step 1. The completion of the last step signifies that the program has been executed once. When the specified number of program loops is completed, the sequence ends. You can set the load state (load on or off, load value, slew rate) at the end of the sequence of a program.

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Setting range	Setting item	Description
By step	Load value	Current, conductance, voltage, power. The values that can be set depend on the current operation mode.
	Slew rate	Sets the speed of change when the current is changed.
	Step execution time	0.000050 s to 3600000 s (50 μs to 1000 h), resolution: 1 μs
	Load on/off control	To turn the load on, set the load setting transition method to step or ramp.
	Others	Trigger signal setting, trigger signal output
For each program	Number of loops of program	1 to 100000 repetitions, or infinite repetitions.
For each program	Protection functions	Specifies the value at which a protection function (OCP, OPP, UVP) is activated.

TALink

The TALink (Transient Acquire Link) trigger makes it possible to log data in PLZ-5WH2 in synchronization with the sequence steps. Logged data can then be accessed through communication with the PLZ-5WH2 and saved to a USB as a CSV file.

Alarm Function

This function detects anomalies and protects the DUT. There are two types of alarm based on the urgency level: alarm 1 (high urgency) and alarm 2 (low urgency).

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Alarm 1 (high urgency)

Name	Operation
Overvoltage detection (OVP)	Load off
Reverse-connection detection (Reverse)
Overheat detection, overcurrent detection of the front-panel DC INPUT terminals (OTP/Front)
Alarm input detection (External)
Parallel operation anomaly detection

Alarm 2 (low urgency)

Name	Mode	Operation
Overcurrent protection (OCP)	CR, CV, CP	Load off or limit
Overpower protection (OPP)	CC, CR, CV, ARB	Load off or limit
Undervoltage protection (UVP)	CC, CR, CP, ARB	Load off, limit, or activation off
Watchdog protection (WDP)	All	Load off

This function limits the current (UVPL) or turns off the load (UVPT) when the voltage applied to the product becomes equal to or less than the UVP setting. You can set this regardless of whether the load is on or off.

Trip	Turns the load off. The setting display changes to UVPT.
Limit	Limits the voltage so as not to become equal to or less than the set value. The setting display changes to UVPL.

ABC Preset Memories

The ABC preset memory can store load settings in three memories: A, B, and C. Since memory contents can be recalled with a single operation, it is convenient for switching between setting values in sequence.

Setup Memory

The setup memory can store up to 20 sets (0 to 19) of the current conditions of the items listed below. The current conditions can also be saved in a USB memory device.

Operation mode
Load values (current, voltage, conductance, power)
Slew rate
Pulse amplitude (current/conductance or percentage)
Pulse interval (frequency/time of one cycle and duty cycle/operating time on the high side)
Sine amplitude (current)
Sine frequency
Alarm operating conditions
Content of ABC preset memories

A file saved on the PLZ-5WH2 can be transferred to the PLZ-5W via a USB memory device. If the UVP is set to “limit” on the PLZ-5WH2, this will be changed to +CV mode on the PLZ-5W (PLZ205W, PLZ405W, PLZ1205W).

External control

PLZ-5WH2 can be controlled/monitored from an external device.
The external control terminals are isolated from the load inputterminal.

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Terminal No.	In/Out *1	Signal name	Description
1	–	STATUS COM	Status signal common for pins 14 to 16.
2	NC	–	–
3	NC	–	–
4	NC	–	–
5	IN	ALARM CLEAR	Alarm clearing input
6	IN	ALARM IN	Alarm input
7	NC	–	–
8	NC	–	–
9	IN	TRIG INPUT	Trigger input. Resumes program execution if Wait(post) was set to Trig IN in a sequence step and the program was paused.
10	–	A COM	This is connected to the chassis.
11	OUT	DIGITAL 0	DIGITAL0 output. Sequence control possible.
12	OUT	DIGITAL 1	DIGITAL1 output. Sequence control possible.
13	IN/OUT	DIGITAL 2	DIGITAL2 I/O. Input/output switchable. Sequence signal output or the trigger input of sequences and measurement function.
14	OUT	ALARM1	ALARM1 output. ON when overvoltage detection, reverse-connection detection, overheat detection, alarm input detection, or parallel operation anomaly detection is activated, and also during external alarm input.
15	OUT	ALARM2	ALARM2 output. ON during OCP, OPP, UVP, or WDP operation.
16	OUT	LOAD ON STATUS	Load-on status output. ON during load on.
17	NC	–	–
18	IN	LOAD ON / OFF CONT	Load on/off control input. Logic level switchable.
19	–	A COM	This is connected to the chassis.
20	IN	EXT CONT ADD	External voltage control input. Controls the load setting of CC mode by adding current.
21	IN	EXT CONT MODE	External voltage control input. Controls the load values of CC, CR, and CP modes.
22	IN	EXT CONT CV	External voltage control input. Controls the voltage of CV mode.
23	–	A COM	This is connected to the chassis.
24	OUT	IMON	Current monitor output.
25	NC	–	–

*1 1000 V reinforced insulation between each terminal and the DC INPUT terminal.

Current and Voltage Monitor

In addition to the conventional current monitor output, voltage monitor output (0 V to 10 V/Output of 1/100 of measured voltage) has been added to the front BNC connector.

USB Keyboard

When a keyboard is connected to the USB connector on the front panel, numbers/characters can be entered from the keyboard.
The types of keyboards that you can use are 101-key and 104-key keyboards.

You can enter numbers/characters if you connect a keyboard

Synchronized operation function

The following synchronization features are available when simply connecting the PLZ-5WH2 with other equipment using a communication cable. Any of the models in the PLZ-5WH2 series can be connected together. Synchronized operation is possible even during parallel operation.

Synchronizing load on/off among multiple pieces of equipment.
Synchronizing measurements.
Synchronizing the start time and resume time for sequences across multiple units.

Remote sensing function

With remote sensing, the voltage measurement point can be changed from the load input terminal to the DUT sensing point. By connecting the sensing leads to the DUT, the effects of voltage drops caused by resistance in the load cables can be reduced and the operation in CR / CV / CP / ARB mode stabilized.

Remote sensing input rated voltage: 1000 V

Applications

Battery Discharge Testing

Battery discharge testing and storage of results can be performed without a PC.
The acquired data can be saved in CSV format on USB memory.

EV Charger Aging Tests

LV124 Standard L-02 Life test – high-temperature endurance test (Durability – Heat) [Life test]

Combination of AC power source and electronic load equipment

DC-DC Converter Evaluation

DC-DC converter performance tests vital for automotive electric components can easily be carried out by controlling the converter input (DC power supply) and output (DC electronic load). The DC power supply and electronic load can be started up simultaneously for variation tests and efficiency tests.

Specifications

LINEUPS

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Specifications	Rating			Constant current (CC) mode			Constant voltage (CV) mode			Constant resistance (CR) mode				Constant power (CP) mode			Power consumption
Model	Operating voltage	Current	Power	Operating range	Setting range	Resolution	Operating range	Setting range	Resolution	Operating range *		Setting range		Operating range	Setting range	Resolution
Model	Operating voltage	Current	Power	Operating range	Setting range	Resolution	Operating range	Setting range	Resolution	Range H	Range L	Range H	Range L	Operating range	Setting range	Resolution
PLZ1005WH2	10 to 1000 V	20 A	1000 W	0 to 20 A	0 to 20.2000 A	0.0005 A	10 to 1000 V	0 to 1010.00 V	0.02 V	500mS to 0S	5mS to 0S	505.00mS to 0.00S	5.05000mS to 0.00000S	0 to 1000 W	0 to 1010.00 W	0.02 W	70 VAmax
PLZ2005WH2		40 A	2000 W	0 to 40 A	0 to 40.400 A	0.001 A				1S to 0S	10mS to 0S	1.01000S to 0.00000S	10.1000mS to 0.0000S	0 to 2000 W	0 to 2020.00 W	0.05 W	90 VAmax
PLZ4005WH2		80 A	4000 W	0 to 80 A	0 to 80.800 A	0.002 A				2S to 0S	20mS to 0S	2.02000S to 0.00000S	20.2000mS to 0.0000S	0 to 4000 W	0 to 4040.0 W	0.1 W	150 VAmax
PLZ12005WH2		240 A	12000 W	0 to 240 A	0 to 242.40 A	0.005 A				6S to 0S	60mS to 0S	6.0600S to 0.0000S	60.600mS to 0.000S	0 to 12000 W	0 to 12.1200 kW	0.0005 kW (0.5)	360 VAmax
PLZ20005WH2		400 A	20000 W	0 to 400 A	0 to 404 A	0.01 A				10S to 0S	100mS to 0S	10.1000S to 0.0000S	101.000mS to 0.000S	0 to 20000 W	0 to 20.2000 kW	0.0005 kW (0.5)	590 VAmax

*1. Conductance [S] = input current [A]/input voltage [V] = 1/resistance [Ω]

Rating

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Item		PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Operating voltage (DC)		10 V to 1000 V
Power		1000 W	2000 W	4000 W	12000 W	20000 W
Current		20 A	40 A	80 A	240 A	400 A
DC INPUT terminal’s isolation voltage		Positive pin: ±1000 V, Negative pin: ±900 V
Minimum operating voltage	At the rated current	10 V
Minimum operating voltage	When the current begins to flow	1.5 V or less

Constant current (CC) mode

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Item		PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Operating range		0 A to 20 A	0 A to 40 A	0 A to 80 A	0 A to 240 A	0 A to 400 A
Selectable range		0.0000 A to 20.2000 A	0.000 A to 40.400 A	0.000 A to 80.800 A	0.00 A to 242.40 A	0.00 A to 404.00 A
Resolution		0.0005 A	0.001 A	0.002 A	0.005 A	0.01 A
Setting accuracy		±(0.2 % of setting + 0.1 % of rating)
Setting accuracy	Parallel operation	±（0.4 % of setting + 0.2 % of rating）

Constant resistance (CR) mode

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Item			PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Operating range *1		Range H	500 mS to 0 S	1 S to 0 S	2 S to 0 S	6 S to 0 S	10 S to 0 S
Operating range *1		Range L	5 mS to 0 S	10 mS to 0 S	20 mS to 0 S	60 mS to 0 S	100 mS to 0 S
Selectable range		Range H	505.00 mS to 0.00 S	1.01000 S to 0.00000 S	2.02000 S to 0.00000 S	6.0600 S to 0.00000 S	10.1000 S to 0.0000 S
Selectable range		Range L	5.0500 mS to 0.0000 S	10.1000 mS to 0.0000 S	20.2000 mS to 0.000 S	60.600 mS to 0.000 S	101.000 mS to 0.000 S
Resolution		Range H	0.01 mS	0.00002 S	0.00005 S	0.0002 S	0.0002 S
Resolution		Range L	0.0001 mS	0.0002 mS	0.0005 mS	0.002 mS	0.002 mS
Setting accuracy*2		Range H	±（0.5 % of setting + 0.5 % of rating*3）
		Range L	±（0.5 % of setting + 0.2 % of rating*3）
	Parallel operation	Range H	±（1.0 % of setting + 1.0 % of rating*3）
	Parallel operation	Range L	±（1.0 % of setting + 0.4 % of rating*3）
Response speed			NORM／FAST

* 1. Conductance [S] = input current [A]/input voltage [V] = 1/resistance [Ω] * 2. Converted value at the input current. At the sensing point during remote sensing. * 3. Rated current

Constant voltage (CV) mode

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Item		PLZ1005WH2
Operating range		10 V to 1000 V
Selectable range		0.00 V to 1010.00 V
Resolution		0.02 V
Setting accuracy *1		±（0.05 % of setting + 0.05 % of rating）
Setting accuracy *1	Parallel operation	±（0.1 % of setting + 0.1 % of rating）
Response speed		NORM／FAST

*1. With the input voltage within the operating range, and at the sensing point during remote sensing.

Constant power (CP) mode

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Item		PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Operating range		0 W to 1000 W	0 W to 2000 W	0 W to 4000 W	0 W to 12000 W	0 W to 20000 W
Selectable range		0.00 W to 1010.00 W	0.00 W to 2020.00 W	0 W to 4040.00 W	0.0000 kW to 12.1200 kW	0.0000 kW to 20.2000 kW
Resolution		0.02 W	0.05 W	0.1 W	0.0005 kW
Setting accuracy		±(0.5 % of rating 1 + 0.02 A × Vin 2)	±(0.5 % of rating 1 + 0.04 A × Vin 2)	±(0.5 % of rating 1 + 0.08 A × Vin 2)	±(0.5 % of rating 1 + 0.2 A × Vin 2)	±(0.5 % of rating 1 + 0.4 A × Vin 2)
Setting accuracy	Parallel operation	±(1 % of power rating + 0.1 % current rating × Vin *2)

* 1. Rated power * 2. DC INPUT terminal voltage or SENSING terminal voltage.

Arbitrary I-V characteristics (ARB) mode

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Item	PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Operating range	Three to 100 points of current values can be specified for the input voltage. Linear interpolation is applied between specified points.
Response speed	500 μs, 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, 50 ms, 100 ms, or off

Measurement function

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Voltmeter

Item		PLZ1005WH2
Display		0.00 V to 1000.00 V
Resolution		10 mV
Accuracy		±（0.05 % of reading + 0.05 % of rating）
Accuracy	Parallel operation	±(0.1 % of reading + 0.1 % of rating) (TYP)

Ammeter

Item		PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Display		0.000 A to 20.000 A	0.000 A to 40.000 A	0.000 A to 80.000 A	0.00 A to 240.00 A	0.00 A to 400.00 A
Resolution		0.001 A	0.001 A	0.001 A	0.01 A	0.01 A
Accuracy		±（0.2 % of reading + 0.1 % of rating）
Accuracy	Parallel operation	±(0.4 % of reading + 0.2 % of rating) (TYP)

Power display

Item	PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Display	Displays the product of the voltmeter reading and ammeter reading

Measurement trigger

Item	PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Trigger Source	Immediate, BUS, DIGITAL2, MSync, TALink, LoadOff
Trigger Count	1 to 65536
Trigger Delay	0.00000 s to 100.00000 s
Interval	Disable/Enable
Interval Time	0.00001 s to 3600 s
Sense Aperture	0.00001 s to 1.00000 s

Pulse function

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Item		PLZ1005WH2
Operation mode		CC and CR
Frequency setting range		1.0 Hz to 10.0 kHz
Frequency setting resolution *1	1 Hz to 10 Hz	0.1 Hz
	11 Hz to 100 Hz	1 Hz
	110 Hz to 1000 Hz	10 Hz
	1.1 kHz to 10.0 kHz	0.1 kHz
Frequency setting accuracy	1 Hz to 5.0 kHz	±（0.5 % of setting）
Frequency setting accuracy	5.1 Hz to 10.0 kHz	±（1.0 % of setting）
Duty cycle setting range, step	1 Hz to 10 Hz	5.0 % to 95.0 %, 0.1 % steps
	11 Hz to 100 Hz
	110 Hz to 1000 Hz
	1.1 kHz to 10.0 kHz	5 % to 95 % *2, 1 % steps

* 1. (Reference) The resolution actually set in the device is period resolution ⊿T = 1 μs, as shown in the equation below. For example, if you specify 9300 Hz, the period set in the device will be n × ⊿T = 108 × 1 μs = 108 μs (where “n” is a number set in the device). Converted to frequency, this becomes 1/108 μs = 9259 Hz. * 2. The minimum time span is 20 μs. The minimum duty cycle is limited by the minimum time span.

Switch value (Depth)

Item *1		PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
CC mode		0.0000 A to 20.2000 A	0.000 A to 40.400 A	0.000 A to 80.800 A	0.000 A to 242.40 A	0.00 A to 404.00 A
CR mode	Range H	505.00 mS to 0.00 S	1010.00 mS to 0.00 S	2020.00 mS to 0.00 S	6.06000 S to 0.00000 S	10.1000 S to 0.0000 S
CR mode	Range L	5.0500 mS to 0.0000 S	10.1000 mS to 0.0000 S	20.2000 mS to 0.0000 S	60.600 mS to 0.000 S	101.000 mS to 0.000 S

*1. The switch value is limited to the set current or set conductance or less.

Slew rate

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Item	PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Operation mode	CC
Operating range	0.001 A/µs to 1 A/µs	0.002 A/µs to 2 A/µs	0.004 A/µs to 4 A/µs	0.01 A/µs to 12 A/µs	0.02 A/µs to 20 A/µs
Resolution	0.00002 A/μs	0.00005 A/μs	0.0001 A/μs	0.0002 A/μs	0.0005 A/μs
Setting accuracy *1	±（10 % of setting + 20 μs）

*1. Time to change from 10 % to 90 % when the current is changed from 0 % to 100 % of the rated current

Sine function

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Item		PLZ1005WH2
Operation mode		CC
Frequency setting range		1 Hz to 1000 Hz, 2000 Hz, 5000 Hz, 10000 Hz
Frequency setting resolution *1	1 Hz to 10 Hz	1 Hz
	20 Hz to 100 Hz	10 Hz100 Hz
	200 Hz to 1000 Hz	10 Hz100 Hz
	1000 Hz to	2 kHz, 5 kHz, 10 kHz
Frequency setting accuracy	300 Hz to 900 Hz	±（1.0 % of setting）
Frequency setting accuracy	Other than the frequencies above	±（0.5 % of setting）

*1. (Reference) The resolution actually set in the device is period resolution ⊿T= 20 μs, as shown in the equation below. For example, if you specify 900 Hz, the period set in the device will be n × ⊿T = 56 × 20 μs = 1120 μs (where “n” is a number set in the device). Converted to frequency, this becomes 1/1120 μs ≈ 893 Hz.

Soft start

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Item	PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Operation mode	CC
Time setting range	500 μs, 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, 50 ms, 100 ms, or off

Alarm function

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Alarm 1

Item	PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Overvoltage detection	Turns off the load when a voltage that is 110 % of the rating or higher is applied.
Reverse-connection detection	Turns off the load when approximately -1 % of the rated current flows through the DC INPUT terminals.
Overheat detection, overcurrent detection of the front-panel DC INPUT terminals	Turns off the load when the heatsink temperature reaches 100 °C. Or, turns off the load when a current of 30 A or higher is flowing through the front-panel DC INPUT terminals.
Alarm input detection	Turns off the load when a voltage between 0 V and 1.5 V is applied to ALARM INPUT (pin 6) of the EXT CONT connector.
Parallel operation anomaly detection	Turns off the load when any of the following errors occurs. • An error occurs in the communication between the master unit and slave unit during parallel operation. • slave unit’s power supply is interrupted. slave unit’s power supply is interrupted. • An overheating was detected on the master or slave unit. • An overcurrent flows through the front-panel DC INPUT terminals. • PLZ-5WH series or PLZ-5W series is connected as a slave.

Alarm 2

Item		PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Overcurrent protection (OCP)	Selectable range	0.000 A to 22.000 A	0.00 A to 44.00A	0.00 A to 88.00A	0.00 A to 264.00A	0.00 A to 440.00A
	Resolution	0.001 A	0.01 A	0.01 A	0.01 A	0.1 A
	Protective operation	Select load off or limit.
Overpower protection (OPP)	Selectable range	0.0 W to 1100.0 W	0.0 W to 2200.00 W	0 W to 4400 W	0.000 W to 13.200 kW	0.000 W to 22.000 kW
	Resolution	0.1 W	0.1 W	1 W	0.001 kW	0.001 kW
	Protective operation	Select load off or limit.
Undervoltage protection (UVP)	Selectable range	0.00 V to 1000.00 V, or off.
	Resolution	0.02 V
	Protective operation	Select load off or limit.
Watchdog protection (WDP)	Selectable range	1 s to 3600 s or off
Watchdog protection (WDP)	Protective operation	Load off

Sequence function

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Item	PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Operation mode	CC, CR, CV, CP
Maximum number of programs	30
Maximum number of steps	10000
Step execution time	0.000050 s to 3600000 s (50 µs to 1000 h)
Time resolution	1 μs

Integration display

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Item		PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Elapsed time display		Displays the time from load on to load off.
Elapsed time display	Range	0 s to 3600000 s (1000 h 0 min 0 s)
Ampere-hour meter display		Displays integrated current
Ampere-hour meter display	Range	0 Ah to 70000 Ah	0 Ah to 140000 Ah	0 Ah to 280000 Ah	0 Ah to 800000 Ah	0 Ah to 1400000 Ah
Watt-hour meter display		Displays integrated power
Watt-hour meter display	Range	0 Wh to 40000000 Wh	0 Wh to 80000000 Wh	0 Wh to 160000000 Wh	0 Wh to 500000000 Wh	0 Wh to 800000000 Wh

Cutoff function

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Item		PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Elapsed time		The load turns off when the elapsed time value reaches the specified value.
	Range	0 s to 3600000 s (1000 h 0 min 0 s)
	Resolution	1 s
Integrated current		The load turns off when the ampere-hour meter value reaches the specified value.
	Range	0 Ah to 70000 Ah	0 Ah to 140000 Ah	0 Ah to 280000 Ah	0 Ah to 800000 Ah	0 Ah to 1400000 Ah
	Resolution	0.001 mAh (0.000 mAh to 1000.000 mAh) 0.001 Ah (1.001 Ah to 1000.000 Ah) 0.001 kAh (1.001 kAh to 1 000.000 kAh) 0.001 MAh (1.001 MAh to 1.400 MAh)
Integrated power		The load turns off when the watt-hour meter value reaches the specified value.
	Range	0 Wh to 40000000 Wh	0 Wh to 80000000 Wh	0 Wh to 160000000 Wh	0 Wh to 500000000 Wh	0 Wh to 800000000 Wh
	Resolution	0.001 Wh (0.000 Wh to 1 000.000 Wh) 0.001 kWh (1.001 kWh to 1 000.000 kWh) 0.001 MWh (1.001 MWh to 800.000 MWh)
Voltage drop		The load turns off when the voltmeter value becomes less than or equal to the specified value.
	Range	0.00 V to 1000.00 V
	Resolution	0.02V

Other functions

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Item		PLZ1005WH2
Remote sensing	Input voltage rating *1	1000 V *2
Remote sensing	Isolation voltage	± 1000 V
Number of units in parallel operation		5 units
Mutual synchronized operation *3		Synchronizes load on/off. Synchronization of sequence execution, and sequence resumption. Synchronizing the recording timing of measured values.

* 1. There are limitations depending on the actual power that the load consumes. * 2. Total potential difference between the DC INPUT terminals and SENSING terminals * 3. The terminals for mutual synchronized operation are isolated from the DC INPUT terminals and operate at the chassis potential.

EXT CONT connector

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Item *1		PLZ1005WH2
Load on/off control input		Logic level switchable. Pulled up to 5 V by a 10 kΩ resistor. The thresholds are HIGH: 3.5 V to 5 V, LOW: 0 V to 1.5 V.
Alarm input		An alarm is activated with a voltage between 0 V and 1.5 V. Pulled up to 5 V by a 10 kΩ resistor. The thresholds are HIGH: 3.5 V to 5 V, LOW: 0 V to 1.5 V.
Alarm clearing input		After an alarm occurs, eliminate the root cause of the alarm, and change the input to pin 5 of the EXT CONT connector from a low level signal to a high level signal. The alarm will be cleared on the rising edge of this signal. Pulled up to 5 V by a 10 kΩ resistor. The thresholds are HIGH: 3.5 V to 5.0 V, LOW: 0 V to 1.5 V.
Trigger input		Paused sequence operation resumes when a voltage between 0 V and 0.66 V is received. Pulled up to 5 V by a 10 kΩ resistor. The thresholds are HIGH: 2.31 V to 3.3 V, LOW: 0 V to 0.66 V.
External voltage control input(CC, CR, CP mode)		Controls the load settings of CC, CR, CP mode through external voltage input. Input impedance: Approx. 10 kΩ. CC: The setting can be controlled in the range of 0 % to 100 % of the rated current through external voltage input of 0 V to 10 V. CR: The setting can be controlled in the range of 0 % to 100 % of the conductance setting through external voltage input of 0 V to 10 V. CP: The setting can be controlled in the range of 0 % to 100 % of the rated power through external voltage input of 0 V to 10 V.
	Setting accuracy	±(1 % of rating) (TYP value in CC mode)
External voltage control input (CV mode)		The load setting of CV mode can be controlled through external voltage input. The rated voltage can be controlled in the range of 0 % to 100 % with 0 V to 10 V. Input impedance: Approx. 10 kΩ.
External voltage control input (CV mode)	Setting accuracy	±(1 % of rating) (TYP)
External voltage control input (superimposing in CC mode)		Controls the load setting of CC mode by adding current through external voltage input. Adds current in the range of -100 % to 100 % of the rated current for -10 V to 10 V.Input impedance: Approx. 10 kΩ.
External voltage control input (superimposing in CC mode)	Setting accuracy	±(1 % of rating) (TYP)
Load-on status output		On when load is on. Open-collector output from a photocoupler. 2 2
ALARM 1 output		ON when overvoltage detection, reverse-connection detection, overheat detection, front-panel DC INPUT overcurrent detection, alarm input detection, or parallel operation anomaly detection is activated. Open-collector output from a photocoupler. 2 2
ALARM 2 output		Turns on when OCP, OPP, UVP, or WDP is activated. Open-collector output from a photocoupler. *2
DIGITAL 0 output		Can be controlled through sequences. Output impedance: Approx. 330 Ω. The thresholds are HIGH: 2.5 V to 3.3 V, LOW: 0 V to 0.4 V.
DIGITAL 1 output
DIGITAL 2 input/output		Input/output switchable. Output: Sequence trigger output. The output impedance is 330 Ω.The thresholds are HIGH: 2.5 V to 3.3 V, LOW: 0 V to 0.4 V. Input: Trigger input signal for the sequence and the measurement functions. The thresholds are HIGH: 2.31 V to 3.3 V, LOW: 0 V to 0.66 V
Current monitor output		Outputs 0 V to 10 V for 0 % to 100 % of the rated current. Output impedance: 1 kΩ (TYP).
Current monitor output	Accuracy	±(1 % of rating) (TYP)

* 1. 1000 V reinforced insulation between each terminal and the DC INPUT terminal * 2. The maximum voltage that can be applied to the photocoupler is 30 V. The maximum current is 4 mA.

BNC connector

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Item		PLZ1005WH2
Trigger output		Transmits 10 μs pulses during step execution when trigger output is set in a sequence. Transmits 10 μs pulses during pulse operation and sine operation. Output impedance: 200 Ω, output voltage HIGH: 4.2 V to 5.0 V, LOW: 0 V to 0.4 V.
Current monitor output	Output voltage	Outputs 0 V to 10 V for 0 % to 100 % of the rated current
	Output impedance	50 Ω (TYP)
	Accuracy	±(1 % of rating)
Voltage monitor output	Output voltage	Outputs the measured voltage with 1/100 magnification from 0 V to 10 V.
	Output impedance	50 Ω (TYP)
	Accuracy	±(1 % of rating)
Isolation voltage		± 30 V

Communication function

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Item		PLZ1005WH2
RS232C	Hardware	D-SUB 9-pin connector. Baud rate: 9600, 19200, 38400, 115200 bps. Data length: 8 bits, Stop bits: 1 bit, Parity bit: None Flow control: No, CTS/RTS
RS232C	Message terminator	LF during reception, LF during transmission.
USB (device)	Hardware	Standard type B socket. Complies with the USB 2.0 specification. Data rate: 480 Mbps (High Speed).
	Message terminator	LF or EOM during reception, LF + EOM during transmission.
	Device class	Complies with the USBTMC-USB488 device class specifications
USB (host)	Hardware	Standard type A socket Complies with the USB 2.0 specification. Data rate: 480 Mbps (High Speed).
LAN	Hardware	IEEE 802,3 100Base-TX/10Base-T Ethernet IPv4, RJ-45 connector.
	Compliant standards	LXI 1.4 Core Specification 2011
	Communication protocol	VXI-11, HiSLIP, SCPI-RAW, SCPI-Telnet
	Message terminator	VXI-11, HiSLIP: LF or END during reception, LF + END during transmission. SCPI-RAW: LF during reception, LF during transmission.

General specifications

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Item		PLZ1005WH2	PLZ2005WH2	PLZ4005WH2	PLZ12005WH2	PLZ20005WH2
Input voltage range		100 Vac to 240 Vac (90 Vac to 250 Vac) single phase
Input frequency range		47 Hz to 63 Hz
Power consumption		70 VAmax	90 VAmax	150 VAmax	360 VAmax	590 VAmax
Inrush current (peak value)	100 Vac	30 Amax	30 Amax	30 Amax	40 Amax	40 Amax
Inrush current (peak value)	230 Vac	80 Amax	80 Amax	80 Amax	160 Amax	160 Amax
Leakage current*1		0.5 mA or less	0.6 mA or less	0.8 mA or less	1.6 mA or less	2.4 mA or less
Environmental conditions	Operating temperature range	0 °C to 40 °C (32 °F to 104 °F)
	Operating humidity range	20 %rh to 85 %rh (no condensation)
	Storage temperature range	-25 °C to 60 °C (-13 °F to 140 °F)
	Storage humidity range	90 %rh or less (no condensation)
	Installation location	Indoor use, altitude of up to 2000 m, overvoltage category II
Insulation resistance	Between primary and chassis, input, monitor terminals	1000 Vdc, 30 MΩ or more (70 %rh or less)
Insulation resistance	Between input terminals and chassis, monitor terminal	1000 Vdc, 3 MΩ or more (70 %rh or less)
Withstanding voltage	Between primary and chassis, input, monitor terminals	No abnormalities at 1500 Vac for 2 s
Withstanding voltage	Between input terminals and chassis, monitor terminal	No abnormalities at 1500 Vac for 2 s
Weight		Approx. 13 kg (28.66 lb)	Approx. 16 kg (35.3 lbs)	Approx. 20 kg (44.1 lbs)	Approx. 64 kg (141.1 lbs)	Approx. 93 kg (205 lbs)
Accessories		[Common to all models] Power cord (1 pc., length: 2.5 m), Safety terminal adapter TL41 (red 1 set, black 1set), External control connector kit (1 set), Safety Information (1 copy), Setup Guide (1 copy), Quick Reference (Japanese 1 sheet, English 1 sheet), CD-ROM (1 disc) [PLZ1005WH2, PLZ2005WH2, PLZ4005WH2] Rear-panel DC INPUT terminal cover (1 set), Screw set for rear-panel DC INPUT terminals (2 sets), Screws for the rear-panel DC INPUT terminal cover (2 pcs.) , Front-panel DC INPUT terminal cover (1 pc.), Screws for the front-panel DC INPUT terminals (2 pcs.) , Heavy object warning label (1 pc.) PLZ4005WH2 only [PLZ12005WH2, PLZ20005WH2] Rear-panel DC INPUT terminals cover (1 set), Screw set for rear-panel DC INPUT terminals (2 sets), Rear-panel DC INPUT terminals cover screws (2 pcs.), Heavy object warning label (1 pc.), Parallel operation signal cable kit [PC02-PLZ-5W]
Electromagnetic compatibility (EMC) 2 3		Conforms to the requirements of the directive and standard below. EMC Directive 2014/30/EU EN 61326-1 (Class A 4), EN 55011 (Class A 4, Group 1 *5), EN 61000-3-2, EN 61000-3-3 Applicable under the following conditions The maximum length of all cabling and wiring connected to the product must be less than 3 m.
Safety *2		Conforms to the requirements of the directive and standard below. EMC Directive 2014/35/EU 3 EN 61010-1 (Class I 6, Pollution Degree 2 *7)

* 1. Leakage current between the positive and negative terminals of the rear-panel DC INPUT. At 1000 Vdc. * 2. Does not apply to specially ordered or modified products. * 3. Limited to models that have a CE mark on their panels. * 4. This is a Class A instrument. This product is intended for use in an industrial environment. This product may cause interference if used in residential areas. Such use must be avoided unless the user takes special measures to reduce electromagnetic emissions to prevent interference to the reception of radio and television broadcasts. * 5. This is a Group 1 instrument. This product does not generate and/or use intentionally radio-frequency energy, in the form of electromagnetic radiation, inductive and/or capacitive coupling, for the treatment of material or inspection/analysis purpose. * 6. This is a Class I instrument. Be sure to ground this product’s protective conductor terminal. The safety of this product is guaranteed only when the product is properly grounded. * 7. Pollution is addition of foreign matter (solid, liquid or gaseous) that may produce a reduction of dielectric strength or surface resistivity. Pollution Degree 2 assumes that only non-conductive pollution will occur except for an occasional temporary conductivity caused by condensation.

Lineup

Compact High-Voltage DC Electronic Loads
PLZ-5WH2 Series

Options

GPIB Converter

GPIB converter
PIA5100

Parallel Operation Signal Cable Kit

High-Voltage Load Cable

Sequence creation and control software “Wavy”

Application Software for Power Supplies and Electronic Loads
WAVY Series

Rack Mount Bracket

For PLZ1005WH2, PLZ2005WH2, PLZ4005WH2

For PLZ12005WH2

For PLZ20005WH2

Resources

Product Catalog

Compact High Voltage DC Electronic Load PLZ-5WH2 Series

https://global.kikusui.co.jp/download/cat_plz-5wh2/

Category: Product Catalogues>Electronic Load

Compact High Voltage DC Electronic Load PLZ-5WH2 Series

PLZ-5WH2 Series

Product Overview

Testing with hyper-realistic load simulation made possible!

Features

Operation mode

Arbitrary I-V Characteristics (ARB) Mode

Maximum Slew Rate of 20 A/μs

Up to 100 kW with parallel operation (Max. 5 units)

Wide Ranging Operating Voltage up to 1000 V

Communication Interface

Load On/Off

Cutoff function

Changing the Response Speed

Soft start function

Data Logging Function

Integrated Data Function

Saving Measurement Data

Pulse function

Sine Function

Sequence function

Alarm Function

ABC Preset Memories

Setup Memory

External control

Current and Voltage Monitor

USB Keyboard

Synchronized operation function

Remote sensing function

Applications

Battery Discharge Testing

EV Charger Aging Tests

DC-DC Converter Evaluation

Specifications

Voltmeter

Ammeter

Power display

Measurement trigger

Switch value (Depth)

Alarm 1

Alarm 2

Lineup

PLZ-5WH2 Series

Options

GPIB Converter

PIA5100

Parallel Operation Signal Cable Kit

PC01-PLZ-5W

PC02-PLZ-5W

High-Voltage Load Cable

HV14-2P3M-M5M5

HV22-2P3M-M12M8

Sequence creation and control software “Wavy”

WAVY Series

Rack Mount Bracket

KRB150-TOS

KRB3-TOS

KRB400-PCR-LE

KRB9

KRB600

KRB13

Resources

Product Catalog

Compact High Voltage DC Electronic Load PLZ-5WH2 Series

Solutions

Evaluation of Power Supplies for Data Centers and IT Servers

High Voltage Large Capacity Inverter Evaluation

On-Board Charger (OBC) Evaluation