SEW-Eurodrive MOVIMOT flexible MMF1 C/DBC Series - Page 219

8
Service
Fault/error table
Operating Instructions – MOVIMOT
®
flexible
219
Subfault: 16.20
Description: Nominal speed too high or nominal frequency too low
Response: Output stage inhibit
Cause Measure
During startup using nameplate data: Nominal
speed too high or nominal frequency too low. The
resulting number of pole pairs is 0.
Enter plausible motor data (nominal speed and
nominal frequency).
Subfault: 16.21
Description: Nominal slip negative
Response: Output stage inhibit
Cause Measure
During startup using nameplate data, the calcu-
lated nominal slip is negative: Nominal frequency
too low, or nominal speed too high, or number of
pole pairs too high.
Enter plausible motor data (nominal frequency,
nominal speed, number of pole pairs).
Subfault: 16.22
Description: Specify the number of pole pairs
Response: Output stage inhibit
Cause Measure
During startup using nameplate data: It is not
possible to calculate the number of pole pairs ac-
curately from nominal frequency and nominal
speed.
Enter the number of pole pairs.
Subfault: 16.23
Description: Plausibility check failed
Response: Output stage inhibit
Cause Measure
During startup using nameplate data: The estim-
ated nominal power does not match the entered
nominal power.
Check entered nameplate data for plausibility.
Subfault: 16.24
Description: Speed controller sampling cycle not possible with current PWM frequency or current
control mode
Response: Application stop + output stage inhibit
Cause Measure
At a PWM frequency of "2.5kHz", only the speed
controller sampling cycle of 2ms is permitted. For
the ELSM
®
control mode, the only permitted
speed controller sampling cycles are 1ms and
2ms.
Increase PWM frequency or increase sampling
cycle of speed controller to 2ms. Set the
sampling cycle to 1ms or 2ms for ELSM
®
control
mode.
29129451/EN – 12/2019