Siemens 440 - Manual (Page 314)

Faults and Alarms Issue 01/06
MICROMASTER 440 Parameter List
314 6SE6400-5BB00-0BP0
F0452 Load torque fault detected STOP II
Quit
Refer to F0001
Cause
- load conditions at the motor signify a load torque fault (e.g. belt failure) or a mechanical fault
Diagnosis & Remedy
Please check the following:
-
no braking, failure or destruction of the mechanical drive transmission line
- if required, lubricate the mechanical drive transmission line.
If you are using an external encoder, please check the following parameter settings:
-
P2192 (delay time, load torque monitoring)
If you are operating within a specific speed range, please check the following:
-
P2182 (load torque monitoring F1)
- P2183 (load torque monitoring F1f2)
- P2184 (load torque monitoring F1f3)
- P2185 (upper torque threshold 1)
- P2186 (lower torque threshold 1)
- P2187 (upper torque threshold 2)
- P2188 (lower torque threshold 2)
- P2189 (upper torque threshold 3)
- P2190 (lower torque threshold 3)
- P2192 (delay time, load torque monitoring)
F0453 Motor stalled STOP II
Quit
Refer to F0001
Cause
- up/ or down ramp too steep (excessive gradient)
- inverter connected to an already spinning motor without using the flying restart function
- motor incorrectly connected
- motor too small
- voltage boost P1611 for sensorless vector control too low
Diagnosis & Remedy
Please check the following:
-
the motor connections
- increase the ramp-up time P1120 or the ramp-down time P1121
- activate the flying restart function P1200
- use a larger motor
- increase the voltage boost P1611 for sensorless closed-loop vector control
- use closed-loop vector control with encoder instead of sensorless closed-loop vector control.
- activate the V/f closed-loop control mode (P1300 less than 20) instead of closed-loop vector control