Fuji Electric Europe GmbH
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11
ALARM MESSAGES
Code
Name
Description
0c1
0c2
0c3
Instantaneous overcurrent
The inverter momentary output current exceeded the overcurrent level.
OC1: Overcurrent during acceleration
OC2: Overcurrent during deceleration
OC3: Overcurrent during running at a constant speed
0u1
0u2
0u3
Overvoltage
The DC link bus voltage exceeded the overvoltage detection level.
OV1: Overvoltage during acceleration
OV2: Overvoltage during deceleration
OV3: Overvoltage during running at a constant speed
lu
Undervoltage
The DC link bus voltage dropped below the undervoltage detection level.
lin
Input phase loss
An input phase loss occurred or the Interphase voltage unbalance rate was large.
0pl
Output phase loss
An output phase loss occurred.
0h1
Heat sink overheat
The temperature around the heat sink has risen abnormally.
0h2
External alarm
The external alarm
THR
was entered.
(when the
THR
“Enable external alarm trip” has been assigned to any digital input
terminal)
0h3
Inverter internal overheat
The temperature inside the inverter has exceeded the allowable limit.
0h4
Motor protection (PTC thermistor)
The temperature of the motor has risen abnormally.
0l1
Overload of motor 1
The electronic thermal protection for motor overload detection was activated.
0lu
Inverter overload
The temperature inside the inverter has risen abnormally.
er1
Memory error
An error has occurred in writing data to the memory in the inverter.
er2
Keypad communications error
A communications error has occurred between the keypad and the inverter.
er3
CPU error
A CPU error or LSI error has occurred.
er4
Option communications error
A communications error has occurred between the connected option card and the
inverter.
er5
Option error
An error was detected by the connected option card (not by the inverter).
er6
Operation protection
An incorrect operation was attempted.
er7
Tuning error
Auto
-
tuning has failed, resulting in abnormal tuning results.
erf
Data saving error during undervoltage
When the undervoltage protection was activated, the inverter failed to save data,
showing this error.
erh
Hardware error
The LSI on the power printed circuit board has malfunctioned due to noise, etc.
ecf
Enable circuit failure (EN1 and EN2 terminals)
The Enable circuit was diagnosed as a circuit failure.
ecl
Customizable logic error
A customizable logic configuration error has caused an alarm.
err
Mock alarm
A mock alarm has been generated intentionally by keypad operation.
Table.18 Alarm message codes
