ACS 600 no communication (8)
We have a No communication (8) error on an ACS600 drive, but we can reset it by pressing the reset button. However, the fault come back 2 or 3 hours later.
Everything work fine, we only have this alarm that scares the operators.
I checked and there are 24Vdc supply.
Is there anybody to help me?
The ACS600 series is quite dated, from the FW manual I note that the lack of communication can be a panel problem or the interface of the control board towards the panel.
I can advise you to do some cleaning on the contacts, if by chance there is dust.
If the fault persists, and if you have any other unit of the same type, you can try swapping the panel of the first drive with another, to understand if it depends on the panel or the drive card.
Alternatively, I suggest that you contact the ABB Service in your area with confidence. They will be able to advise you in the best way to solve your fault.
Source: ACS600 FW MANUAL