AC power supply PCR-LE2 series

Appendix


Alarms and Trouble

Overview

The PCR-LE2 Series has the following protection functions. When a protection function is activated, an alarm (ALM-xx) or a trouble indication (TRBL-xx) is generated, and the output is turned off.

Alarm

An alarm is generated by the PCR-LE2 Series to indicate that a protection function has been activated. Press ALM CLR (SHIFT+CLR) to clear the alarm, and then fix the problem that caused the alarm.

Trouble

A trouble indication is generated by the PCR-LE2 Series when it is used improperly, when it suspects a malfunction, or when there is a possibility that it will be damaged. Turn the POWER switch off, wait at least 5 seconds, and turn it back on. If the same trouble indication occurs again, contact your Kikusui agent or distributor to request repairs.

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If multiple alarms occur, only the first alarm will be displayed. To display the other alarms that are occurring, press ALM CHK (F5), and then turn the rotary knob.

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Corrective action

Alarm code and corrective action

Touble code and corrective action

If ALM-08 (UNIT FAIL) occurs when you restart the PCR-LE Series after a trouble indication occurs

Alarm code and corrective action

Alarm code

Description and corrective action

ALM-00

OVP

The output overvoltage protection has been activated.

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

ALM-01

VccOVP

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-LE2 Series, or two phases may have shorted during single-phase three-wire output or three-phase output. Alternatively, the PCR-LE2 Series may be malfunctioning. If the alarm occurs even after you fix the problem that caused the alarm, stop using the PCR-LE2 Series immediately, and contact your Kikusui agent or distributor to request repairs.

ALM-02

OHP

ALM-02-1 PFC OHP

ALM-02-2 DCDC OHP

ALM-02-3 THER_1 OHP

ALM-02-4 THERE_2 OHP

The overheat protection has been activated.

The internal temperature may have risen to an abnormal level. Leave the PCR-LE2 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-LE2 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-LE2 Series immediately, and contact your Kikusui agent or distributor to request repairs.

ALM-03

OCP

The PCR-LE2 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.

ALM-06

OVERLOAD

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.

ALM-07

UVP

The output undervoltage protection has been activated.

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

ALM-08

UNIT MISSING

ALM-08-1 UNIT MISSING

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-LE2 Series temporarily.

UNIT FAIL

ALM-08-2 UNIT FAIL

ALM-08-3 DC P.S TRBL

ALM-08-4 AMP FUSE TRIP

ALM-08-5 DCDC FUSE TRIP

ALM-08-6 SUB P.S FAIL

ALM-08-7 FAN ERROR

This indicates a power unit malfunction.

At least one power unit is malfunctioning.

ALM-15

CAL.ALM

Calibration value error.

AC INPUT LOW

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.

Other alarms indicators

Contact your Kikusui agent or distributor to request repairs.

Alarms and Trouble (Cont.)

Corrective action(Cont.)

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Touble code and corrective action

Trouble code

Description and corrective action

TRBL-01

DC P.S TRBL

Stop using the PCR-LE2 Series immediately, and contact your Kikusui agent or distributor to request repairs.

TRBL-02

FUSE TRIP

TRBL-02-1 FUSE TRIP

TRBL-02-2 DCDC FUSE TRIP

TRBL-02-3 SENSING FUSE TRIP

Stop using the PCR-LE2 Series immediately, and contact your Kikusui agent or distributor to request repairs.

TRBL-03

SUB P.S FAIL

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

TRBL-19

EXT.SHUTDOWN

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

TRBL-23

OPTION ERROR

Option board installation error.

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

AC INPUT LOW

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.

Other trouble indicators

Contact your Kikusui agent or distributor to request repairs.

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If ALM-08 (UNIT FAIL) occurs when you restart the PCR-LE Series after a trouble indication occurs

If you turn the POWER switch on while power units in which trouble has occurred and power units in which trouble has not occurred are installed in the PCR-LE2 Series, the ALM-08 (UNIT FAIL) alarm will occur. If you clear the alarm, you can temporarily use the power units in which trouble has not occurred. The output will be limited.

- Note -

After a trouble indication occurs, if ALM-08 (UNIT FAIL) is displayed, at least one power unit is malfunctioning. You can use the PCR-LE Series temporarily, but contact your Kikusui agent or distributor to request repairs.

Confirming the power units in which trouble is occurring

While ALM-08 (UNIT FAIL) is displayed, press ALM CHK (F5).

The power unit of the PCR-LE2 Series is divided into three groups. The group names vary depending on the output method.

Groups during single-phase output: M, S1, and S2

Groups during single-phase three-wire output or three-phase output:

U, V, and W (the W group is not used during single-phase three-wire output).

The alarm code and the power unit in which trouble is occurring will be displayed. If trouble is occurring in two or more power units, turn the rotary knob to check the information.

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Power unit

Applicable model

No.

Total number of power units per group

Total number of power units

0

--

--

Main unit, all models

1 to 2

2

6

PCR6000LE2

1 to 3

3

9

PCR9000LE2

1 to 4

4

12

PCR12000LE2

1 to 6

6

18

PCR18000LE2

1 to 9

9

27

PCR27000LE2

The power-saving function cannot be used if alarms are occurring on all units in any one of the groups.

Equations for determining the available power and current

Single-phase output

"Na" is the number of power units in which trouble is not occurring. “Nb” is the total number of power units.

Single-phase three-wire output, Three-phase output

"Na" is the number of power units in a group in which problems are not occurring. "Nb" is the total number of power units.

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Example 1: On the PCR6000LE2, when a problem is occurring in one unit in the M/U group and one unit in the S1/V group

Single-phase output:

Power that can be used = 6000*2/6 = 2000 W

Current that can be used = 60*2/6 = 20 A

Single-phase three-wire output, Three-phase output:

Available power of phase U = 6000*1/6 = 1000 [W]

Available current of phase U = 60*1/6 = 10 [A]

Available power of phase V = 6000*1/6 = 1000 [W]

Available current of phase V = 60*1/6 = 10 [A]

Available power of phase W = 6000*2/6 = 2000 [W]

Available current of phase W = 60*2/6 = 20 [A]

Example 2: On the PCR6000LE2, when problems are occurring in two units in the M/U group

The power-saving function cannot be used because problems are occurring in all power units in the M/U group. The power-saving function cannot be used on the PCRLE2 Series if alarms are occurring on all units in any one of the groups.

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AC power supply PCR-LE2 seriesAC power supply PCR-LE2 series
Appendix