Modifying Power Ratings for ABB ACS800 Series VFD Control Boards

Modifying the power ratings on ABB ACS800 series VFD (Variable Frequency Drive) control boards can be performed following a set of detailed steps, depending on the firmware version of the RDCU (Remote Digital Control Unit) board. This guide outlines the processes for both pre-version 7200 and post-version 7200 RDCU boards.

Pre-Version 7200 RDCU Power Rating Modification Steps

1. Enter 9903 and set to YES:
   • Access the control panel and navigate to parameter 9903.
   • Set the value to YES to enable modification mode.
2. Enter 1603 and set to 564:
   • Navigate to parameter 1603 and enter the passcode 564.
   • This unlocks access to parameter groups 112 and 190.
3. Select XXNONE in 11206:
   • Navigate to parameter 11206 and select XXNONE.
   • This prepares the board for power cycle.
4. Power Cycle:
   • Turn off the power to the RDCU board.
   • Wait a few seconds and then turn the power back on.
5. Re-enter 1603 and set to 564 (again):
   • Repeat step 2 to ensure the passcode is active.
6. Select the Desired Power Rating in 11206:
   • Navigate to parameter 11206 again and select the desired power rating (e.g., 170-3).
7. Initialize Parameters:
   • Perform any necessary parameter initialization steps as recommended by the manufacturer’s guidelines.
8. Final Power Cycle:
   • Repeat the power cycle process to ensure the new settings take effect.

Post-Version 7200 RDCU Power Rating Modification Steps

1. Enter 9903 and set to YES:
   • Same as the pre-version 7200 steps.
2. Enter 1603 and set to 564:
   • Same as the pre-version 7200 steps.
3. Select the Desired Power Rating Directly in 11221:
   • Instead of using 11206, navigate to parameter 11221 and directly select the desired power rating (e.g., 11221 = sr170_3).
4. Re-enter 9903 and set to YES (optional):
   • Depending on the specific firmware, this step may be optional but recommended for confirmation.
5. Power Cycle:
   • Turn off the power to the RDCU board and then turn it back on.

Notes and Cautions

• Parameter Ranges: Note that parameters 11219 to 11223 represent different power ratings. Ensure you select the correct one for your application.
• Normal Usage Caution: Do not modify the settings on a normally operating VFD unless absolutely necessary, as it may result in the loss of important operational parameters.
• Firmware Differences: Always refer to the latest ABB documentation for your specific firmware version, as steps may vary slightly between versions.
• Parameter Unlocking: Remember that entering 564 in parameter 1603 unlocks advanced parameters, allowing for the modification of power ratings and other settings.

By following these steps carefully, you can safely modify the power ratings of ABB ACS800 series VFD control boards, ensuring optimal performance and compatibility