How to Fix ABB ACS560 Warning A582 - Auxiliary Code Mismatch

Seeing A582 on your ABB ACS560? This "Auxiliary Code Mismatch" warning usually means your hardware and software are out of sync. Learn how to fix it here.

Solving ABB ACS560 Warning A582: Auxiliary Code Mismatch

If your ABB ACS560 is displaying the A582 warning, don’t worry—your motor isn't about to explode. In the world of ABB drives, "A" stands for Alarm or Warning, meaning the drive is still operational but it has noticed something "off" in its internal logic.

Code A582 specifically points to an Auxiliary Code Mismatch. In plain English? The drive's software is looking at the hardware attached to it and saying, "Wait a minute, this isn't what I was told to expect."

Why is Warning A582 Appearing?

The ACS560 is a modular drive. It has a main control unit, a power stack, and optional slots for things like I/O extensions (BIO-01) or Fieldbus adapters. A582 usually triggers for one of three reasons:

• Memory Unit Swap: You took the memory unit (ZMU) from one drive and plugged it into a different ACS560 with a different power rating.
• New Option Module: You added a module (like a Modbus or Profibus adapter) but haven't "introduced" it to the software yet.
• Firmware Mismatch: After a firmware update, the new software version doesn't fully recognize the specific revision of the hardware.

Step-by-Step Troubleshooting for A582

1. Check Parameter 07.03 (Drive Rating ID)

The first place to look is the drive's identity.

• Go to Parameter 07.03. This shows the "Rating ID."
• Compare this to the physical nameplate on the side of the drive. If the parameter says the drive is 5.5kW but the nameplate says 11kW, you have a mismatch usually caused by a swapped memory unit.

2. Refresh Option Module Configuration

If you recently added an I/O extension or a fieldbus module:

• Go to Parameter 15.01 (for I/O extensions) or Group 50 (for Fieldbus).
• Ensure the drive is set to "Configure" or "Refresh" the settings. Often, the drive just needs you to toggle the "Refresh" parameter to [1] Configure to re-scan the hardware and clear the A582 warning.

3. Verify Hardware Compatibility

If you are using an external "BIO-01" I/O extension module, ensure it is seated correctly in the slot. A loose connection can cause the drive to intermittently lose the "Auxiliary Code" of that module, causing the A582 alarm to flicker on and off.

4. The "Power Cycle" Trick

It sounds simple, but the ACS560 performs a hardware scan during boot-up.

1. Turn off the main power.
2. Wait until the keypad display goes completely dark.
3. Turn the power back on.

In many cases, the drive will re-index its hardware on start-up and the A582 warning will disappear.

Can I Run the Motor with A582?

Yes, usually. Because it is a warning and not a fault (like F0001), the drive will typically allow you to start and stop the motor. However, you should not ignore it. A mismatch can lead to incorrect current readings or failed communication with your PLC down the line.

Summary

The ABB ACS560 A582 warning is essentially a "paperwork" error inside the drive. By checking Parameter 07.03 and ensuring your option modules in Group 15 or 50 are properly refreshed, you can clear this code and get back to a "Green Light" status.