The output overvoltage protection has been activated.

This occurs when the measured voltage exceeds the OVP setting for approximately 1 second.

The internal Vcc overvoltage protection has been activated.

A voltage greater than or equal to the set voltage has been regenerated from the output side of the PCR-LE Series, or two phases may have shorted during single-phase three-wire output or three-phase output. Alternatively, the PCR-LE Series may be malfunctioning. If the alarm occurs even after you fix the problem that caused the alarm, stop using the PCR-LE Series immediately, and contact your Kikusui agent or distributor to request repairs.

The overheat protection has been activated.

The internal temperature may have risen to an abnormal level. Leave the PCR-LE Series on, and wait for approximately 10 minutes.

If the alarm is still occurring after 10 minutes, check that the power cord is connected correctly.

If the alarm has stopped occurring after 10 minutes, the PCR-LE Series may have been installed incorrectly, or the dust filter may be clogged.

If there are no problems with the installation or the dust filter, stop using the PCR-LE Series immediately, and contact your Kikusui agent or distributor to request repairs.

The PCR-LE Series' internal semiconductor protection function has been activated.

After the protection function is activated, there is a period of approximately 120 seconds (the “Busy” state) during which the output cannot be turned on.

Fix the problem that caused the OCP to occur, and then press OUTPUT again. The OCP should be cleared, and the output should turn on.

The overload protection function has been activated.

The output current has exceeded the rated value or the current limit.

After the protection function is activated, there is a period of approximately 120 seconds (the “Busy” state) during which the output cannot be turned on.

Fix the problem that caused the overload to occur, and then press OUTPUT again. The overload should be cleared, and the output should turn on.

The output undervoltage protection has been activated.

This occurs when the measured voltage is lower than the UVP setting for approximately 1 second.

There are not enough power units.

Power units may have been removed. If this alarm occurs for some power units, you can clear the alarm and use the PCR-LE Series temporarily.

This indicates a power unit malfunction.

At least one power unit is malfunctioning.

Calibration value error.

Measurement function error.

This error may occur if you change the aperture time consecutively.

There is an error in the sensing wiring. Turn the power off, fix the wiring, and then turn the power back on.

The input voltage has become lower than the ratedvalue. Wiring errors or short interruption may have occurred. Turn the POWER switch off and check if the wiring is correct, then turn it back on.

Contact your Kikusui agent or distributor to request repairs.

Stop using the PCR-LE Series immediately, and contact your Kikusui agent or distributor to request repairs.

Stop using the PCR-LE Series immediately, and contact your Kikusui agent or distributor to request repairs.

The internal circuit protection has been activated. Contact your Kikusui agent or distributor to request repairs.

Power signal cable connection error.

During parallel operation, the power signal cable is not connected. If the cable is connected, contact your Kikusui agent or distributor to request repairs.

The cable of the U-phase or V-phase control panel is disconnected.

If the cable is connected, contact your Kikusui agent or distributor to request repairs.

Power signal cable connection error.

The power signal cable is connected even though parallel operation is not being used. If the cable is not connected, contact your Kikusui agent or distributor to request repairs.

Output stopped as a result of an output shutdown signal received through external contacts.

The firmware versions of the PCR-LEs in the system are different.

Download the firmware updater from the KIKUSUI WEB, and make the versions the same.

Option board installation error.

Install the board correctly. If the board is installed correctly, contact your Kikusui agent or distributor to request repairs.

Communication error between the U-phase and V-phase units.

Check whether the connecting cable of 2P05-PCR-LE or 3P05-PCR-LE is disconnected. If the connecting cable is connected, contact your Kikusui agent or distributor to request repairs.

Communication error between the U-phase and W-phase units.

Check whether the connecting cable of 3P05-PCR-LE is disconnected. If the connecting cable is connected, contact your Kikusui agent or distributor to request repairs.

Communication error between the master board(PD05M-PCR-LE) and slave board(PD05S-PCR-LE).

Check whether the connecting cable of PD05M-PCR-LE/PD05S-PCR-LE is disconnected. Check whether the PD05M-PCR-LE/ PD05S-PCR-LE address is set correctly.

If the cable is connected and the address is set correctly, contact your Kikusui agent or distributor to request repairs.

The input voltage has become lower than the ratedvalue. Wiring errors or short interruption may have occurred. Turn the POWER switch off and check if the wiring is correct, then turn it back on.

Contact your Kikusui agent or distributor to request repairs.

Main unit, all models

PCR1000LE

PCR2000LE

PCR3000LE

PCR4000LE

PCR6000LE

PCR9000LE