Siemens F31801 fault code meaning
Siemens / F31801
Series: DCM-6RA80
Encoder 1 DRIVE-CLiQ: Sign of life missing
DC drive
Meaning: %2 Message class: Internal communication (DRIVE-CLiQ) fault (12) Drive object: DC_CTRL, DC_CTRL_R, DC_CTRL_R_S, DC_CTRL_S Component: Control unit (CU) Propagation: LOCAL Reaction: Encoder (IASC/DCBRK, None) Acknowledgment: Immediately Cause: A fault has occurred in DRIVE-CLiQ communication between the control unit and the associated encoder. Fault cause: 10 (= 0A hexadecimal): The sign-of-life bit is not set in the received telegram. Note on the message value: Detailed information is encoded in the message value (r0949/r2124) as follows: 0000yyxx hexadecimal: yy = Component number, xx = Fault cause
Possible causes
Source: SINAMICS DCM, Parameter Manual, firmware version 1.5 SP2 (based on 5.1 SP2) P1091
Series: G120-CU250S-2
Encoder 1 DRIVE-CLiQ: Sign of life missing
converter
Meaning: %2 Drive object: CU250S_S, CU250S_S_CAN, CU250S_S_DP, CU250S_S_PN. Reaction: Encoder (IASC/DCBRK, none). Acknowledgment: Immediate. Cause: DRIVE-CLiQ communication between the control unit and the associated encoder is faulty. Fault cause: 10 (= 0A hexadecimal): The sign-of-life bit is not set in the received telegram. Note on the message value: Detailed information is encoded in the message value (r0949/r2124) as follows: 0000yyxx hexadecimal: yy = component number, xx = fault cause. See: p0491 (Motor encoder fault reaction "Encoder").
Possible causes
Source: SINAMICS G120, Control Unit CU250S-2 P1520
Series: G130-G150
Encoder 1 DRIVE-CLiQ: Sign-of-life missing
converter
Meaning:
Possible causes
Source: G150 P939
Series: G220
Motor encoder DRIVE-CLiQ: Heartbeat signal missing
converter
Meaning: %2 Component: Control unit (CU) Reaction: Encoder (IASC/DCBRK, None) Acknowledgment: Immediate Faults and alarms 5.2 List of faults and alarms SINAMICS G220 Converter 1508 Parameter Manual, 07/2026, FW V6.7, A5E51781505C AD
Possible causes
Source: SINAMICS G220 Converter P1510
Series: S110
Encoder 1 DRIVE-CLiQ: Sign of life missing
servo drive
Meaning: %2 Drive object: SERVO_S110-CAN, SERVO_S110-DP, SERVO_S110-PN Reaction: Encoder (IASC/ DC brake, none). Acknowledgment: Immediate. Cause: DRIVE-CLiQ communication between the control unit and the associated encoder is faulty.
Possible causes
Source: SINAMICS S110 P1134
Series: S210
Encoder 1 DRIVE-CLiQ: Sign of life missing
servo drive
Meaning:
Possible causes
Source: SINAMICS S210_SIMOTICS S-1FK2 and S-1FT2 P935