61

Speed error

Vacon · NXS NXP Drive

What does 61 mean?

The motor's actual speed deviates significantly from its commanded speed reference. This can be caused by a faulty encoder connection (if an encoder is used), or for Permanent Magnet Synchronous (PMS) motors, exceeding the pull-out torque. An uncorrected speed error leads to inaccurate motor control, poor process performance, and potential instability.

Complete Troubleshooting Guide

  1. 1

    If an encoder is used, inspect its physical connection and wiring for damage, looseness, or incorrect polarity.

  2. 2

    Verify the encoder's functionality and signal integrity.

  3. 3

    For PMS motors, check the motor loading to ensure it has not exceeded its pull-out torque capability.

  4. 4

    Review speed control loop parameters for proper tuning.

Source: Vacon Manual