Siemens CU240S DP-F - F00027 Overcurrent on W phase; F00028 Power limit exceeded during regeneration; F00029 EM brake overcurrent; F00035 Auto restart after n

Faults and Alarms
List of Fault and Alarm messages
3-382
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
F00027 Overcurrent on W phase
Reaction: OFF 2
Acknowledge: Quit fault eg. via DI2
Cause: This hardware fault caused by the following events:
• Over current trip on W phase
• Earth Fault
Remedy: Check Inverter and Motor wiring
F00028 Power limit exceeded during regeneration
Reaction: OFF 2
Acknowledge: Quit fault eg. via DI2
Cause: Occurs if motor is driven by an active load, causing motor to go into excessive regeneration.
Occurs at very high load inertias, when ramping down.
Remedy: • Reduce regeneration from active load
• Reduce ramp down rate
• Increase Imax regeneration limit in p1253
F00029 EM brake overcurrent
Reaction: OFF 2
Acknowledge: Quit fault eg. via DI2
Cause: •
Remedy:
F00035 Auto restart after n
Reaction: OFF 2 (OFF 3)
Acknowledge: Power on
Cause: Auto restart attempts exceed value of p1211.
Remedy: