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FAQs
Q1: Which ABB drive series is the APOW-01C compatible with?
The APOW-01C is primarily designed for the ABB ACS800 series drive cabinets (-04/-07 configurations, R7/R8/R9 frames). It can also appear in some ACS880 custom cabinets, but you must verify the exact version match with your original cabinet BOM.
Q2: What is the difference between order codes 64605666 and 64605666B?
They represent the same board with minor revision differences. The "B" suffix indicates a later production batch or component revision. Always match the complete model number (including PCB revision letter printed on the board) when ordering replacements.
Q3: My drive control unit (RMIO/RDCU) won't power up. Could the APOW-01C be the cause?
Yes. If the APOW-01C fails, the control board loses its 5V/3.3V auxiliary power and cannot boot. Check the board's green 24V OK LED. If dark, inspect the input 24V supply and the board itself (look for TVS damage from voltage spikes or reverse polarity).
Q4: Is this board still in production or has it been discontinued?
The APOW-01C is considered a legacy/spare part and is effectively discontinued as the ACS800 platform approaches end-of-life. It falls under "last-time-buy" category—critical applications should maintain a buffer stock (at least 1 spare per facility).
Q5: Can the APOW-01C be replaced while the drive is energized?
Absolutely not. Even though it runs on 24V DC control power, the board sits inside the drive cabinet where high voltage (up to 690V) exists on the main DC bus. The drive must be completely isolated and given at least 5 minutes for DC bus capacitors to discharge below 50V before servicing.
