Wide Operating Range With an Expansion Ratio of 2.25 to 3 Times

The PXZ20K-500 has an operating range of 10 V to 500 V, while the PXZ20K-1500 has a range of 30 V to 1500 V. An operating area ranges from 2.25 to 3 times the expansion ratio.

Five-Step Slew Rate Switching

In CV and CC modes, the speed at which the current or voltage changes can be set. This allows the user to set the optimum test conditions for DUT applications.

* Slew rate works in the following cases:

• When the current or voltage value changes after changing the setting value.
• When the current or voltage value is changed using external control.
• When the current or voltage value is changed by turning the load on.
• When the load is turned off.

Operation mode

The PXZ series has four operating modes. In addition, the I-V characteristic function can be set in the CC and CV modes.

Equipped with touch panel display

By pressing or swiping the display with a finger, the user can select an item on the screen or set a numerical value. The display is pressure-sensitive and can be operated even with gloves on.

Priority Operation Mode

Immediately after turning on the load, the preferred operating mode can be set from CC, CR, and CP. When the input from the DUT reaches the set value, the operating mode switches automatically according to the DUT status. If the voltage of the connected DUT is higher than the voltage setpoint of the PXZ series, current flows from the DUT to the PXZ series. Select CC if a battery or power supply is connected as the DUT.

External Control Function

The EXT CONT connector on the rear panel can be used to control the PXZ series with external devices. The general-purpose digital input and output terminals can be assigned any function, facilitating system construction in combination with other measurement devices. Digital I/O is standard for both NPN and PNP-type PLCs. Analog I/O is isolated from output terminals as standard, allowing safe analog control from PLC.

General-purpose isolated digital input terminals are available for Ch.1 to Ch.5. Any setting value from the items listed on the right can be selected.

General-purpose isolated digital output terminals are available for Ch.1 to Ch.6. Any setting value from the items listed on the right can be selected.

Sequence function

Preset operations can be run continuously. A total of 30 programs and up to 10,000 steps can be created for all programs. Programs stored in the unit’s memory, and data can be exported to a USB memory stick from the front panel.

Pre-charge Function *

The pre-charge function allows 5% of the rated current to flow in CC mode until the set CV voltage is reached. This function can be used to charge DC link capacitors during inverter evaluation in OBC development or charge the DC link capacitor for DC/DC converter evaluation to a desired voltage before starting discharge tests. This suppresses inrush current and prevents battery and DUT device deterioration. In addition, when conducting system verification with the PXZ as a battery simulator, the pre-charge function can be used to raise the voltage to a set level in advance, avoiding a situation where the test cannot be started due to false system diagnostics (wire breakage, battery failure, etc.).

* The interlock must be released and precharge enabled.

I-V characteristic function

By registering multiple arbitrary points on the I-V characteristics, arbitrary I-V characteristics can be set for each CC and CV operation mode. Arbitrary points can be registered from 3 to 100, making it possible to simulate the I-V characteristics of rechargeable batteries and other devices.