Position Coder Disconnected

What does SP0027 mean?

The position coder (encoder) feedback cable is disconnected or the sensor is faulty. This results in loss of position feedback, making position control impossible.

• Position encoder cable is physically disconnected.
• Encoder signal lines are damaged.
• The encoder itself has failed.
• Incorrect encoder type configured in CNC.

Click steps to track your progress.

1. 1

   Check physical connection of the encoder cable at both the motor and the amplifier.

2. 2

   Measure encoder signal integrity (e.g., A, B, Z pulses) at amplifier terminals.

3. 3

   Verify encoder resolution and type settings in CNC parameter P4-XX.

4. 4

   Test encoder output using an oscilloscope if possible.