Faults - Siemens SINAMICS G120 Operating Instructions Manual

Alarms, faults and system messages

12.3 Faults

12.3 Faults
A fault displays a severe fault during operation of the inverter.
The inverter signals a fault as follows:
● at the Operator Panel with Fxxxxx
● on the converter using the red LED RDY
● in bit 3 of the status word 1 (r0052)
● via STARTER
To delete a fault message, you need to remedy the cause of the fault and acknowledge the
fault.
Every fault has a clear fault code and also a fault value. You need this information to
determine the cause of the fault.
Fault buffer of actual values
The converter saves a fault code and fault value for every fault it receives.
Figure 12-5
r0949 and r2133 contain the fault value - important for diagnostics - as "fixed point" or
"floating point" number.
If an additional fault occurs before the first fault has been acknowledged, then this is also
saved. The first alarm remains saved. The fault cases that have occurred are counted in
p0952. A fault case can contain one or several faults.
Figure 12-6
The fault buffer can accept up to eight actual faults. The next to last fault is overwritten if an
additional fault occurs after the eighth fault.
284
Saving the first fault in the fault buffer
Saving the second fault in the fault buffer
SINAMICS G120C frequency converter
Operating Instructions, 03/2012, FW V4.5, A5E02999804B AB