Siemens F31123 fault code meaning

Series: DCM-6RA80

Encoder 1: Signal level A/B exceeded tolerance

DC drive

Meaning: %1 bin Message class: Position/speed actual value incorrect or missing (11) Drive object: DC_CTRL, DC_CTRL_R, DC_CTRL_R_S, DC_CTRL_S Component: Encoder 1 Propagation: LOCAL Reaction: Encoder (IASC/DCBRK, None) Acknowledgment: Pulse inhibit Cause: The unipolar level (AP/AN or BP/BN) of encoder 1 exceeded the permissible tolerance.

Possible causes

Source: SINAMICS DCM, Parameter Manual, firmware version 1.5 SP2 (based on 5.1 SP2) P1068

Series: G120-CU250S-2

Encoder 1: Unipolar signal level A/B exceeded tolerance

converter

Meaning: %1 bin Drive object: All objects Reaction: Encoder (IASC/DCBRK, None) Acknowledgment: Pulses inhibited Cause: The unipolar level (AP/AN or BP/BN) of encoder 1 is outside the permissible tolerance.

Possible causes

Source: SINAMICS G120, Control Unit CU250S-2 P1503

Series: S110

Encoder 1: Unipolar signal level A/B exceeded tolerance

servo drive

Meaning: %1 bin Drive object: SERVO_S110-CAN, SERVO_S110-DP, SERVO_S110-PN Reaction: Encoder (IASC/ DC brake, none) Acknowledgment: Pulse inhibition Cause: The unipolar level (AP/AN or BP/BN) of encoder 1 has exceeded the permissible tolerance.

Possible causes

Source: SINAMICS S110 P1117