6
Operation
Axis module fault
Operating Instructions – MOVIDRIVE
®
modular
192
Subfault: 28.9
Description: FCB 18 – Rotor position identification not possible
Response: Output stage inhibit
Cause Measure
Rotor position identification was started with an incremental en-
coder but was aborted prematurely.
– Restart the rotor position identification.
– Check whether the encoder is connected correctly.
– Check whether encoder is defective.
The result of rotor position identification cannot be stored in the
encoder.
Select "inverter" as storage location.
The combination of "Automatic" mode and "Encoder" storage
location is not permitted.
Set the operating mode to "Manual" or the storage location to
"Inverter".
Subfault: 28.10
Description: FCB 25 – Unbalanced motor phases
Response: Output stage inhibit
Cause Measure
Significantly different values determined in the three phases
while measuring stator resistances.
– Check whether the motor is connected correctly.
– Check all contact points on the motor and inverter.
– Check the motor and motor cable for damage.
Subfault: 28.11
Description: FCB 25 – At least one phase with high resistance
Response: Output stage inhibit
Cause Measure
At least one motor phase could not be measured during motor
parameter measurement
– Check whether the motor is connected correctly.
– Check all contact points on the motor and inverter.
– Check the motor and motor cable for damage.
Subfault: 28.12
Description: FCB 25 – Timeout during stator resistance measurement
Response: Output stage inhibit
Cause Measure
Motor parameter measurement activated while motor is turning. – Stop motor.
– Start motor parameter measurement when the motor is at
standstill.
Subfault: 28.13
Description: FCB 25 – Characteristic curve identification not possible
Response: Output stage inhibit
Cause Measure
Motor parameter measurement does not allow for unique iden-
tification of the characteristic curve.
Contact the SEW-EURODRIVE Service.
Subfault: 28.14
Description: Modulo min. and max. swapped
Response: Emergency stop + output stage inhibit
Cause Measure
In active data set, value for "Modulo min." is greater than value
for "Modulo max.", see Monitoring functions\Limit value 1 or
Monitoring functions\Limit values 2.
Exchange the values for modulo min. and modulo max.
6.5.23 Fault 29 HW limit switch
Subfault: 29.1
Description: Positive limit switch hit
Response: HW limit switches – current drive train
Cause Measure
Positive hardware limit switch hit – Check hardware limit switch wiring.
– Check target position.
– Move clear with negative speed.
24748536/EN – 11/2017
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