Operating Instructions

SINAMICS G120 CU230P-2 Control Units
List Manual, 04/2018, A5E33838102
795
4 Faults and alarms
4.2 List of faults and alarms
F07320 Drive: Automatic restart interrupted
Message class: Application/technological function faulted (17)
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: - the specified number of restart attempts (p1211) has been completely used up because within the monitoring time
(p1213) the faults were not able to be acknowledged. The number of restart attempts (p1211) is decremented at
each new start attempt.
- the monitoring time for the power unit has expired (p0857).
- when exiting commissioning or at the end of the motor identification routine or the speed controller optimization, the
drive unit is not automatically switched on again.
Fault value (r0949, interpret hexadecimal):
Only for internal Siemens troubleshooting.
Remedy: - increase the number of restart attempts (p1211). The actual number of starting attempts is displayed in r1214.
- increase the delay time in p1212 and/or the monitoring time in p1213.
- either increase or disable the monitoring time of the power unit (p0857).
- reduce the delay time to reset the start counter (p1213[1]) so that fewer faults are registered in the time interval.
A07321 Drive: Automatic restart active
Message class: Application/technological function faulted (17)
Reaction: NONE
Acknowledge: NONE
Cause: The automatic restart (AR) is active. When the line supply returns and/or the causes of the existing faults are
removed the drive is automatically restarted. The pulses are enabled and the motor starts to rotate.
For p1210 = 26, restarting is realized with the delayed setting of the ON command.
Remedy: - the automatic restart (AR) should, if required, be inhibited (p1210 = 0).
- an automatic restart can be directly interrupted by withdrawing the switch-on command (BI: p0840).
- for p1210 = 26: by withdrawing the OFF2- / OFF3 command.
A07325 Drive: Hibernation mode active - drive automatically switched-on again
Message class: Application/technological function faulted (17)
Reaction: NONE
Acknowledge: NONE
Cause: The "hibernation" function is active (p2398). The drive automatically powers itself up again as soon as the restart
conditions are present.
See also: p2398 (Hibernation mode operating type), r2399 (Hibernation mode status words)
Remedy: Not necessary.
The alarm is automatically withdrawn when the motor is restarted or when the motor is manually switched off.
F07330 Flying restart: Measured search current too low
Message class: Application/technological function faulted (17)
Reaction: OFF2 (NONE, OFF1)
Acknowledge: IMMEDIATELY
Cause: During a flying restart, it was identified that the search current reached is too low.
It is possible that the motor is not connected.
Remedy: Check the motor feeder cables.
F07331 Flying restart: Function not supported
Message class: Error in the parameterization / configuration / commissioning procedure (18)
Reaction: OFF2 (NONE, OFF1)
Acknowledge: IMMEDIATELY
Cause: It is not possible to power up with the motor rotating (no flying restart).
In the following cases, the "flying restart" function is not supported:
PMSM: operation with U/f characteristic and sensorless vector control.
Note:
PMSM: permanent-magnet synchronous motor
Remedy: Deactivate the "flying restart" function (p1200 = 0).