Power Supply Driver Stage Fault

What does F873 mean?

The voltage supply for the ECODRIVE DKC01.1/DKC11.1 drive's internal driver stage is monitored. If this voltage is detected as too low, the drive is turned off to prevent damage.

• Voltage supply of the driver stage is too low, indicating an internal fault within the drive controller.

Click steps to track your progress.

1. 1

   Verify the incoming main AC supply voltage to the ECODRIVE DKC01.1/DKC11.1 drive controller is stable and within specified limits.

2. 2

   Inspect for any external factors that might cause internal voltage drops, such as extreme ambient temperatures or blocked cooling vents.

3. 3

   If external conditions are normal and the fault persists, it indicates an internal hardware fault; exchange the ECODRIVE DKC01.1/DKC11.1 drive controller.