4465
Position initialization error at system start
Beckhoff · TwinCAT 2 NC
What does 4465 mean?
During the initial system start-up, the set position could not be successfully initialized for all trials (with/without overflow/underflow) within the final position minimum and maximum limits. This means the axis could not establish a valid initial position, preventing it from becoming referenced and ready for motion.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Check for mechanical obstructions or binding that could prevent the axis from reaching a valid initial position.
- 4
Ensure the encoder is functioning correctly and providing valid feedback during initialization.
Source: Beckhoff TwinCAT 2 NC
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