249.805.013
31
Date: 2021-12-09
Code
Error message
Cause
Solution
1
UNDERVOLTAGE
Shutdown due to undervoltage in the DC link.
The input voltage might be too low.
2
OVERVOLTAGE
Shutdown due to overvoltage in the DC link.
The input voltage might be too high.
4
OVERTEMP. >70C
Shut down due to inverter overheat.
The temperature of the power electronics in the frequency inverter is too high.
The cooling is insufficient, for example, ambient temperature too high, insufficient air
circulation, dirty air grate or the fan is defective.
The drive can only be restarted when it has been allowed to cool down.
5
MOTOR OVERTEMP.
Shut down due to motor overheat
This message is issued when the motor thermostat is triggered or the temperature of the
motor PTC is exceeded (if available).
The motor is being insufficiently cooled, for example, due to a defective fan.
The drive can only be restarted when it has been allowed to cool down.
6
INV OVERCURRENT.
Shut down due to inverter overload.
Inverter output current (active current) too high.
Possible cause:
→
The motor load is too high
7
INV OVERCURRENT.
Shut down due to inverter overcurrent.
The momentary output current is permanently exceeding the rated current by more than
150%.
Possible causes:
→
The motor load is too high
8
INVRTER EEPROM
Malfunction in the inverter memory.
Power cycle the Roll Down. Unplug the power and wait 30 seconds before applying power
again.
9, 64
INVERTER SHORT
This is the switch off function due to a short-
circuit on the frequency inverter
The inverter was heavily overloaded (also short term).
Causes can be for example:
a short-circuit / earth fault in the motor or in the supply leads.
