8
Service
Fault/error table
Operating Instructions – MOVIMOT
®
flexible
235
Subfault: 28.4
Description: FCB 11/12 – Reference offset error
Response: Emergency stop + output stage inhibit
Cause
Measure
Error when determining reference offset.
– Make sure that the reference offset is not set to
a larger value than the "Modulo maximum" limit
value.
When using a single-turn absolute encoder, make
sure that the reference offset is not set to a larger
value than one encoder revolution.
Subfault: 28.5
Description: FCB 11/12 – Referencing not possible
Response: Emergency stop + output stage inhibit
Cause
Measure
In the active drive train, the "Actual position
source" parameter is set to "No encoder".
Assign "Actual position source", or do not perform
any referencing.
Subfault: 28.6
Description: FCB 11/12 – Limit switch/reference cam not flush/overlapping with fixed stop
Response: Emergency stop + output stage inhibit
Cause
Measure
Hardware limit switch or reference cam that has
not been selected was approached during refer-
ence travel to fixed stop.
Check whether the parameters set for reference
travel are correct.
During reference travel to fixed stop with selected
hardware limit switch or reference cam, the fixed
stop was reached without approaching the hard-
ware limit switch or reference cam.
Check whether the parameters set for reference
travel are correct.
Subfault: 28.7
Description: FCB 21 – Test torque greater than maximum torque at motor shaft
Response: Output stage inhibit
Cause
Measure
The required test torque for the brake test is
higher than the maximum torque. It cannot be
generated by the motor/inverter combination.
Reduce the test torque.
Subfault: 28.8
Description: FCB 21 – Test torque not reached
Response: Output stage inhibit
Cause
Measure
Test torque required for brake test exceeds valid
limit values.
– Reduce the test torque.
– Check limit values.
29129451/EN – 12/2019
