User Manual

List of Faults and Alarms

Faults and Alarms

3-687

SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 06/2011

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.