Yaskawa · V1000
This fault indicates a general hardware problem within the drive's control circuit. Such internal issues can prevent the drive from functioning correctly and may lead to complete operational failure. Continued use with this fault can exacerbate internal damage to sensitive electronic components.
Click steps to track your progress.
Inspect the drive's input power quality using a power analyzer to detect voltage sags or transients.
Power down the drive completely (main and control power) for a minimum of 10 minutes.
Visually examine the control board for any signs of physical damage, such as cracks in the PCB or lifted traces.
Confirm the proper connection and seating of all internal communication cables within the drive's chassis.
Try to upload the parameters, then perform a factory default reset (e.g., P1-00 to 1), and then re-download previous parameters.
If unsuccessful, consider swapping the control board with a known good spare.