How to Solve Err21 Nice 3000 Monarch Elevator Controller

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How to Solve Err21 Nice 3000 Monarch Elevator Controller

Error 21 is a common fault code that may appear on the Nice 3000 Monarch elevator controller. This error indicates an issue with the frequency settings, specifically when the maximum frequency is set lower than the rated frequency. Below, we’ll discuss the cause and provide a step-by-step guide to resolve the problem effectively.

Problem Cause

The error arises because the controller detects a mismatch between the maximum frequency and the rated frequency parameters. These settings are critical for the smooth operation of the motor, and incorrect configuration can prevent proper elevator functionality.

Solution

Step 1: Verify Parameters F0-06 and F1-04

These parameters control key frequency settings of the controller.

  • F0-06 (Maximum Frequency): This parameter should match the motor’s maximum frequency specification.
  • F1-04 (Rated Frequency): This parameter should correspond to the motor’s rated frequency as per the manufacturer’s specifications.

Action:

  1. Access the controller’s parameter menu.
  2. Check and adjust F0-06 to the motor’s maximum frequency.
  3. Verify that F1-04 matches the motor’s rated frequency.
  4. Save changes and exit the menu.

Step 2: Check F6-52 and Enable Bit10

The F6-52 parameter is a configuration bit setting that controls various motor drive features. To resolve Error 21, ensure Bit10 is enabled (set to 1).

Action:

  1. Locate F6-52 in the parameter menu.
  2. Check that Bit10 = 1 (enabled). If not:
    • Enable Bit10 by setting its value to 1.
  3. Save the configuration and exit.

Testing and Verification

  1. After making the adjustments, restart the elevator controller.
  2. Observe the system for any error codes or irregularities.
  3. Run the elevator to ensure smooth operation and that the error does not reoccur.

Conclusion

Error 21 on the Nice 3000 Monarch elevator controller can be resolved by properly configuring the frequency parameters F0-06 and F1-04, and ensuring that F6-52 Bit10 is enabled. By following the steps outlined above, you can restore the system to normal operation and prevent further issues caused by incorrect frequency settings.

If the problem persists despite these adjustments, consult the motor’s user manual or contact a professional technician for assistance.