Operating Instructions

ManualsBrandsSiemens ManualsVariable Speed DriveEU-Declaration of Conformity, SINAMICS G120

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List of faults and alarms

Faults and alarms

3-691

SINAMICS G120 CU230P-2 Control Units List Manual (LH9), 01/2013

F07806 Drive: Regenerative power limit exceeded (F3E)

Reaction: OFF2 (IASC/DCBRK)

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/ground fault detected

Reaction: OFF2 (NONE)

Acknowledge: IMMEDIATELY

Cause: A phase-phase short-circuit or ground fault was detected at the motor-side output terminals of the converter.

Fault value (r0949, interpret decimal):

1: Short-circuit, phases U-V

2: Short-circuit, phases U-W

3: Short-circuit, phases V-W

4: Ground fault with overcurrent

1xxxx: Ground fault with current in phase U detected (xxxx = component of the current in phase V in per mille)

2xxxx: Ground fault with current in phase V detected (xxxx = component of the current in phase U in per mille)

Note:

Also when interchanging the line and motor cables is identified as a motor-side short circuit.

Connecting to a motor that is either not de-energized or partially de-energized is possibly detected as ground fault.

Remedy: - check the motor-side converter connection for a phase-phase short-circuit.

- rule-out interchanged line and motor cables.

- check for a ground fault.

For a ground fault:

- do not enable the pulses when connecting to a rotating motor without the "Flying restart" function activated (p1200).

- increase the de-energization time (p0347).

- If required, deactivate the monitoring (p1901).

F07808 (A) HF damping module: damping not ready

Reaction: OFF2 (NONE, OFF1, OFF3)

Acknowledge: IMMEDIATELY

Cause: When switching on or in the switched-on state, the HF damping module does not return a ready signal.

Remedy: - Check the DRIVE-CLiQ wiring to the HF damping module.

- check the 24 V supply voltage.

- if required, replace the HF damping module.

Note:

HF Damping Module

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.