Siemens SINAMICS G List Manual page 562

Faults and Alarms
List of faults and alarms
Reaction upon N: NONE
Acknowledge NONE
upon N:
F07405 (N, A) Drive: Kinetic buffering minimum speed not reached
Reaction: OFF2 (DCBRAKE, OFF1, OFF3, STOP1, STOP2)
Acknowledge: IMMEDIATELY
Cause: During kinetic buffering the speed fell below minimum speed (p1257) and the line supply did not return.
Remedy: Check the speed threshold for the Vdc_min controller (kinetic buffering) (p1257).
See also: p1257
Reaction upon N: NONE
Acknowledge NONE
upon N:
Reaction upon A: NONE
Acknowledge NONE
upon A:
F07406 (N, A) Drive: Kinetic buffering maximum time exceeded
Reaction: OFF3 (DCBRAKE, OFF1, OFF2, STOP1, STOP2)
Acknowledge: IMMEDIATELY
Cause: The maximum buffer time (p1255) has been exceeded but the line supply has not returned.
Remedy: Check the time threshold for Vdc-min controller (kinetic buffering) (p1255).
See also: p1255
Reaction upon N: NONE
Acknowledge NONE
upon N:
Reaction upon A: NONE
Acknowledge NONE
upon A:
A07409 Drive: V/f control, current limiting controller active
Reaction: NONE
Acknowledge: NONE
Cause: The current limiting controller of the V/f control was activated because the current limit was exceeded.
Remedy: The alarm is automatically withdrawn when increasing the current limit (p0640), reducing the load or using a slower
up ramp for the setpoint (reference) speed.
F07410 Drive: Current controller output limited
Reaction: OFF2 (NONE, OFF1)
Acknowledge: IMMEDIATELY
Cause: - motor not connected or motor contactor open.
- no DC link voltage present.
- motor module defective.
Remedy: - connect the motor or check the motor contactor.
- check the DC link voltage (r0070).
- check the motor module.
F07411 Drive: Flux controller output limited
Reaction: OFF2 (NONE, OFF1)
Acknowledge: IMMEDIATELY
Cause: The specified flux setpoint cannot be reached although 90% of the maximum current has been specified.
- incorrect motor data.
- motor data and motor configuration (star/delta) do not match.
- the current limit has been set too low for the motor.
- the motor module is too small.
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SINAMICS G List Manual, Edition 12.2004