Power Off Required

What does FF39 mean?

The inverter type (e.g., sr0025_3) has been changed, a process typically performed at the factory or during drive implementation. This alarm indicates that a power cycle of the control board is specifically required to validate and apply the new inverter type configuration.

• System requires a controlled power-off sequence.
• Critical internal state detected that necessitates immediate shutdown.
• Safety interlock requires a power cycle before operation can resume.
• Hardware condition that cannot be resolved without a complete power off and on.

Click steps to track your progress.

1. 1

   Switch off the control board power (e.g., disconnect supply to the control unit) to validate the inverter type change, then reapply power.