No reference.

¿Qué significa 156 ?

The reference point for the drive is not known. In absolute positioning mode, homing was not performed before the first positioning command, which is essential for establishing a known position.

• Drive is operating in absolute positioning mode (e.g., Parameter C1210 = 1 for absolute) but has not completed a homing routine.
• The homing procedure was interrupted, failed (e.g., due to limit switch error), or did not successfully establish a valid reference.
• Encoder battery (for multi-turn absolute encoders) is depleted or disconnected, causing loss of position data on power cycle.
• Homing offset parameter (e.g., C1220) is incorrectly configured, leading to an invalid reference point.
• Memory corruption or parameter reset causing the loss of the stored reference point data.

Haga clic en los pasos para seguir su progreso.

1. 1

   1. Initiate and complete a homing sequence as defined in the system's operational manual. Monitor homing status (e.g., P5-06 for 'Homing Done' bit).

2. 2

   2. For absolute encoders with battery backup, check the encoder battery voltage (if a diagnostic parameter exists) and replace if below specification (e.g., 3.0VDC).

3. 3

   3. Verify the homing mode (e.g., C1211) and homing offset (C1220) parameters are correctly configured for the application.

4. 4

   4. Cycle power to the drive and re-attempt homing to confirm persistent loss of reference.

5. 5

   5. Check the encoder cable and connections (e.g., X2 connector) for any intermittent faults that could cause loss of absolute position data.