Siemens A35231 fault code meaning
Siemens / A35231
Series: S120-S150
TM: Missing "Control via PLC"
converter
Meaning: The "Control via PLC" signal is missing during operation. - Incorrect BI p0854 connection for "Control via PLC". - The higher-level control system has removed the "Control via PLC" signal. - Data transmission via the fieldbus (master/drive) has been interrupted.
Possible causes
Source: SINAMICS S120_S150 P3160
Series: S220
TM: Missing "Control via PLC"
converter
Meaning: The "Control via PLC" signal is missing during operation. - The binary signal sink for "Control via PLC" is incorrectly connected (c0854). - The higher-level controller has withdrawn the "Control via PLC" signal. - Data transmission via the fieldbus (master/drive) has been interrupted. Note: This alarm is only relevant in operating mode "PLC" (p4400 = 0). In operating mode "SINAMICS" (p4400 = 1), calculation of the setpoint on c4420 is independent of binary signal sink c0854.
Possible causes
Source: SINAMICS S220 converter P2691