Siemens A31443 fault code meaning

Series: G120-CU250S-2

Encoder 1: Unipolar CD signal level exceeded specification

converter

Meaning: %1 bin Drive object: All objects. Reaction: None. Acknowledgment: None. Cause: The unipolar level (CP/CN or DP/DN) of encoder 1 exceeded the permissible tolerance.

Possible causes

Source: SINAMICS G120, Control Unit CU250S-2 P1517

Series: G220

Motor encoder: Signal level of the C/D track is outside tolerance (alarm

converter

Meaning: %1 bin Component: Encoder 1 Reaction: None Acknowledgment: None Cause: The unipolar level (CP/CN or DP/DN) of the motor encoder exceeded the permissible tolerance.

Possible causes

Source: SINAMICS G220 Converter P1508

Series: S110

Encoder 1: Unipolar CD signal level exceeded specification

servo drive

Meaning: %1 bin Drive object: SERVO_S110-CAN, SERVO_S110-DP, SERVO_S110-PN. Response: None. Acknowledgment: None. Cause: The unipolar level (CP/CN or DP/DN) of encoder 1 exceeds the permissible tolerance.

Possible causes

Source: SINAMICS S110 P1131

Series: S120-S150

Encoder 1: Signal C/D level outside tolerance range (alarm

converter

Meaning: %1 bin Message class: Position/speed actual value incorrect or missing (11) Drive object: A_INF, B_INF, ENC, HLA, R_INF, S_INF, SERVO, SERVO_AC, SERVO_I_AC, TM41, VECTOR, VECTOR_AC, VECTOR_I_AC Component: Encoder 1 Broadcast: LOCAL Response: None Acknowledgment: None Cause: The unipolar level (CP/CN or DP/DN) of encoder 1 has exceeded the permissible tolerance.

Possible causes

Source: SINAMICS S120_S150 P2998