Siemens SINAMICS G120 Manual page 687

F07806 Drive: Regenerative power limit exceeded (F3E)
Reaction: OFF2 (IASC/DCBRAKE)
Acknowledge: IMMEDIATELY
Cause: For blocksize power units, types PM250 and PM260, the regenerative rated power r0206[2] was exceeded for more
than 10 s.
See also: r0206 (Rated power unit power), p1531 (Power limit regenerative)
Remedy: - increase the down ramp.
- reduce the driving load.
- use a power unit with a higher regenerative feedback capability.
- for vector control, the regenerative power limit in p1531 can be reduced so that the fault is no longer triggered.
F07807 Drive: Short-circuit detected
Reaction: OFF2 (NONE)
Acknowledge: IMMEDIATELY
Cause: A phase-phase short-circuit was detected at the motor-side output terminals of the converter.
Note:
Also when interchanging the line and motor cables is identified as a motor-side short circuit.
Remedy: - check the motor-side converter connection for a phase-phase short-circuit.
- rule-out interchanged line and motor cables.
F07808 (A) HF damping module: damping not ready
Reaction: OFF2 (NONE, OFF1, OFF3)
Acknowledge: IMMEDIATELY
F07810 Drive: Power unit EEPROM without rated data
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: No rated data are stored in the power unit EEPROM.
See also: p0205 (Power unit application), r0206 (Rated power unit power), r0207 (Rated power unit current), r0208
(Rated power unit line supply voltage), r0209 (Power unit, maximum current)
Remedy: Replace the power unit or inform Siemens Customer Service.
A07850 (F) External alarm 1
Reaction: NONE
Acknowledge: NONE
Cause: The BICO signal for "external alarm 1" was triggered.
The condition for this external alarm is fulfilled.
See also: p2112 (External alarm 1)
Remedy: Eliminate the causes of this alarm.
A07851 (F) External alarm 2
Reaction: NONE
Acknowledge: NONE
Cause: The BICO signal for "external alarm 2" was triggered.
The condition for this external alarm is fulfilled.
See also: p2116 (External alarm 2)
Remedy: Eliminate the causes of this alarm.
A07852 (F) External alarm 3
Reaction: NONE
Acknowledge: NONE
Cause: The BICO signal for "external alarm 3" was triggered.
The condition for this external alarm is fulfilled.
See also: p2117 (External alarm 3)
Remedy: Eliminate the causes of this alarm.
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 01/2011
Faults and Alarms
List of Faults and Alarms
3-687