Position tolerance band monitoring

What does F14.10 mean?

The actual position detected by Encoder 2 has moved outside the configured position tolerance band. This could be due to incorrect startup parameters, faulty wiring, external interference, or a defective encoder, potentially leading to inaccurate positioning or unexpected movements.

• Incorrect tuning parameters for position control (e.g., P5-20 Position window, P5-21 Position tolerance time) set too narrow.
• Mechanical backlash, looseness, or wear in the motor coupling or load allowing excessive positional deviation.
• Intermittent noise or voltage spikes on Encoder 2 feedback lines (e.g., due to poor shielding) causing erratic position readings.
• Insufficient motor torque or incorrect current limits (e.g., P3-10 Current limit) preventing the motor from tracking the commanded position.
• Internal damage to Encoder 2 sensor element or processing unit causing an unstable or incorrect position output.

Click steps to track your progress.

1. 1

   Verify the configured position window (P5-20) and tolerance time (P5-21) against the actual mechanical system's capabilities.

2. 2

   Inspect Encoder 2's mechanical coupling and the load system for play, looseness, or worn components.

3. 3

   Check Encoder 2 feedback cable for proper shielding continuity and grounding at both the drive and encoder.

4. 4

   Monitor the actual position deviation and commanded position via data logging to identify the nature and timing of excursions.

5. 5

   Measure the motor's actual output torque and compare to commanded torque to ensure adequate power for tracking.