KIKUSUI PLZ-5WH2 Series DC Electronic Load

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). Three up to 100 points can be registered, and the space between two points is linearly interpolated. The minimum voltage (0.00V) and current (0.00A) and the maximum voltage (1010.00V) are fixed.

Maximum Slew Rate of 20A/μs

The PLZ-5WH2 series boasts a 20 μs rise time*, easily satisfying the critical needs of power supply evaluation tests demanding a fast transient response. *When using the PLZ20005WH2

Wide Ranging Operation Voltage up to 1000V

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

Parallel Operation

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

Parallel operation (max. 5 units) is available on all models by simply connecting an optional parallel operation cable. This feature is available even among different models for a wide range of high power. (up to 100kW / 2000A)*A parallel cable needs to have each unit connection. 12kW and 20kW models are included in accessory. 1kW, 2kW and 4kW models are option.

Parallel connection with PLZ-5WH series*

Must be PLZ-5WH as a Master and update the firmware to newest version. *When parallel operation between 5WH and 5WH2, only same capacity model is available.

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.

Changing the Response Speed

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

Soft Start

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 in constant current (CC) mode.
• There is an input that is equal to or exceeds the minimum operating condition, from the state where there is no input to the load input terminals.

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 to rise slowly only when the product is started.

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.

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 10μs from the TRIG OUT connector on the front panel when the current amplitude changes from low (Depth) to high (Set) level.

Sine Function

The sine function varies the current sinusoidally. It is suitable for super- posed 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 10μs 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).

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, star ting 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.

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 ommunication with the PLZ-5WH2 and saved to a USB as a CSV file./p>

Alarm Function

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

Alarm 1 (high urgency)

Alarm 2 (low urgency)

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.

ABC Preset Memories

Three setting values can be stored in preset memory slots A, B, and C. All saved settings can be accessed at the press of a button, which is perfect for when you want to quickly switch between three sets of values.

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).

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

You can enter numbers/characters if you connect a keyboard to the USB port on the front panel. The types of keyboards that you can use are 101-key and 104-key keyboards.

Remote Sensing

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

Communication Interface

LAN, USB and RS232C standard digital interface. *GPIB Option

Synchronized Operation

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.
• ynchronizing the start time and resume time for sequences across multiple units.