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Table 9.4 Fault (Trip)
# Item
LCD
Message
Indication
Description
1
52RT
52R TRIP
AC input circuit breaker #52R tripped.
2
72BT
72B TRIP
DC input circuit breaker #72B tripped.
3
71BF
DC FUSE BLW
DC Main circuit fuse blew.
4
86MU
MU FAULT1
An inverter or converted fuse blew.
5
WDCPU
WDCPU
An error occurred in the main control
microprocessor (CPU).
6
80PS
CONT. PS. ERR
The control power supply voltage fell.
7
80B1
BATT UV
Battery voltage is below discharged voltage.
8
5E
EPO SW ON
An emergency stop was specified by the external
contact input. (Option)
Table 9.5 Warning - 1 (Converter stop/Input power error)
# Item
LCD
Message
Indication
Description
1
27S
AC I/P UV
AC input voltage is low.
2
59S
AC I/P OV
AC input voltage is high.
3
95S
I/P FREQ. ERR
AC input frequency error.
Table 9.6 Warning - 2 (Stop and restart)
# Item
LCD
Message
Indication
Description
1
27I
AC O/P UV
AC output voltage is low.
2
59I
AC O/P OV
AC output voltage is high.
3
51L
AC O/P OL
Load is too high.
4 51I
AC
O/P
OC
Load
overcurrent.
5
51IO
INV OC
Inverter overcurrent.
6
76
DC OC
Excessive current in DC section of main circuit.
7
45
DC OV
Excessive voltage in DC section of main circuit.
8
51C
AC I/P OC
AC input overcurrent.
9
51CO
CONV OC
Converter overcurrent.
10
30MU
MU FAULT2
The converter and/or inverter gate voltage fell,
or the converter and/or inverter overheated.
11
26C
OVER TEMP
Temperature high in cubicle.
12
WDDSP
CONTROL ERR
An error occurred in the control microprocessor
(DSP).