Encoder 3: Absolute encoder EnDat, internal fault/error

What does 233111 mean?

This fault indicates that the EnDat encoder's internal fault word has set specific fault bits, signaling various internal issues such as lighting system failure, low signal amplitude, incorrect position values, or problems with the encoder's 5V power supply (overvoltage, undervoltage, or overcurrent). Additionally, it can indicate a need for battery replacement in battery-backed encoders. An unresolved internal encoder fault will lead to unreliable position feedback, preventing accurate motor control, causing potential uncontrolled movements, and ultimately stopping machine operation.

Complete Troubleshooting Guide

1. 1

   If lighting system, signal amplitude, position value, or overcurrent faults occur, the encoder is defective and must be replaced; if it's a motor encoder with direct DRIVE-CLiQ, replace the motor.

2. 2

   For 5V power supply voltage faults (over/undervoltage), check the plug-in cable between the encoder and SMC, or replace the SMC. If using a motor with DRIVE-CLiQ, replace the motor.

3. 3

   If Bit 6 is set, the battery must be changed (only for encoders with battery back-up).