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5. SELECTION FAILURE INDICATION
5.1 Faults which can not be reset by manual operation
Fault Code
Content
Probable Cause
What to do
CPF
CPU software
error
1. High electronic noise
1. Install RC type suppresser on all
contactor / brake coils
EPR
EEPROM error
1. EEPROM is damaged
1. Change EEPROM
- OV -
Over Voltage in
stop mode
1. Detection circuit is
damaged
1. Notify your supplier to check
- LV -
Low Voltage in
stop mode
1. Input voltage is too low
2. Current limit resistor
(R1) or fuse burned out
- 400V series Inverter
3. Detection circuit is
damaged
1. Correct input voltage
2. Change current limit resistor or
fuse
3. Notify your supplier to check
- OH -
Heatsink Over
Heat in stop mode
1. Detection circuit is
damaged
2. Ambient temperature is
too high or ventilation
is poor
1. Notify your supplier to check
2. Lower ambient temperature or
improve ventilation