Faults and AlarmsIssue 01/06

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

314

MICROMASTER 440 Parameter List

6SE6400-5BB00-0BP0

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Image 314
Siemens 440 manual F0452 Load torque fault detected, F0453 Motor stalled, 314