Siemens SINAMICS G150 Manual page 1485

A07805 (N) Infeed: Power unit overload I2t
Message value: -
Message class: Power electronics faulted (5)
Drive object: B_INF
Reaction: NONE
Acknowledge: NONE
Cause: Alarm threshold for I2t overload (p0294) of the power unit exceeded.
Remedy: - reduce the continuous load.
- adapt the load duty cycle.
Reaction upon N: NONE
Acknowl. upon N: NONE
F07807 Drive: Short-circuit/ground fault detected
Message value: %1
Message class: Ground fault / inter-phase short-circuit detected (7)
Drive object: VECTOR_G
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
Message value: New message: %1
Message class: Power electronics faulted (5)
Drive object: VECTOR_G
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
Reaction upon A: NONE
Acknowl. upon A: NONE
SINAMICS G130/G150
List Manual (LH2), 04/2014, A5E03263479A
4 Faults and alarms
4.2 List of faults and alarms
1485