Operating instructions

Vector Control Chassis Type Frequency Converter Faults and Alarms
SIEMENS AG 476 869 4070 76 J AB-74
SIMOVERT MASTERDRIVES Operating Instructions 11-23
Fatal errors are serious hardware or software errors which no longer
permit normal operation of the unit. They only appear on the PMU in
the form "FF<No>". The software is re-booted by actuating any key on
the PMU.
FFxx Error message Power-down the converter and power-up
again. Call the service personnel if a fatal
error message is displayed again
FF01 Time slot overflow
A non-removable time sector overflow was
identified in the higher priority time sectors.
• Increase sampling time (P357) or reduce
pulse frequency (P340)
• Replace CU
FF03 Access error, optional board
Fatal errors occurred when accessing
external optional boards
(CB, TB, SCB, TSY ..)
• Replace CU
• Replace LBA
• Replace optional board
FF06 Stack overflow
Overflow of the stack.
• Increase sampling time (P357) or reduce
pulse frequency (P340)
• Replace CU
FFxx Other fatal errors • Replace CU
E Fatal hardware errors • Replace CU
EEEE Fatal firmware errors • Replace CU
• Re-load firmware
Table 11-3 Fatal errors
Fatal errors (FF)