SEW-Eurodrive MOVIFIT basic - Inspection;Maintenance

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Operating Instructions – MOVIFIT® basic
8
Inspection/Maintenance
Service
8.3 Inspection/Maintenance
The MOVIFIT
®
basic unit does not require maintenance. SEW-EURODRIVE does not
prescribe any inspection or maintenance work for the MOVIFIT
®
basic unit.
U_Uo lt
DC link undervoltage Occurs routinely when switching off the inverter.
• Check line voltage if this occurs while the drive
is running.
O-t
Overtemperature at heat
sink
• Check inverter cooling.
• Provide additional space or cooling, if neces-
sary.
U-t
Undertemperature Occurs at an ambient temperature below –10 °C.
• Increase the ambient temperature to above –
10 °C before switching on the inverter.
th-Flt
Faulty thermistor at heat
sink.
• Contact the SEW-EURODRIVE Service.
P-LOSS
Input phase failure error One input phase failed in an inverter designed for
operation on a three-phase system.
Ph-lb
Phase asymmetry Asymmetry of > 3% occurs for more than 30 s in
the supply input voltage.
• Check input voltage and fuses.
dAtA-F
Internal memory error • Parameters not saved.
• Factory settings loaded.
• Try again.
• If this problem occurs repeatedly, contact the
SEW-EURODRIVE service.
At-FO1
Auto-tune error The measured stator resistance of the motor fluc-
tuates between the phases.
• Make sure that the motor is connected cor-
rectly and without error.
• Check the winding for correct resistance and
symmetry.
At-F02
The measured stator resistance of the motor is too
high.
• Make sure that the motor is connected cor-
rectly.
• Check whether the power rating of the motor
corresponds with the power rating of the con-
nected inverter.
At-F03
The measured motor inductivity is too low.
• Make sure that the motor is connected cor-
rectly.
At-F04
The measured motor inductivity is too high.
• Make sure that the motor is connected cor-
rectly.
• Check whether the power rating of the motor
corresponds with the power rating of the con-
nected inverter.
At-F05
The measured motor parameters are contradic-
tory.
• Make sure that the motor is connected cor-
rectly.
• Check whether the power rating of the motor
corresponds with the power rating of the con-
nected inverter.
Error code Fault Solution