C Connect Err

What does F105 mean?

The control module was detected to be disconnected from the power module while power was still applied to the drive. This "hot-swapping" action can lead to parameter corruption, damage to the control module, or damage to the power module due to sudden power cycling of sensitive electronics.

• The control module was removed or became dislodged from the power module while mains power (e.g., L1, L2, L3) was still applied to the drive.
• Vibration or mechanical shock caused the control module to momentarily lose connection with the power module during operation.
• Loose or damaged connectors between the control module and the power module, leading to intermittent contact.
• Internal failure of the power module or control module detection circuitry.
• Incorrect reassembly after maintenance, where the control module was not fully seated before applying power.

Click steps to track your progress.

1. 1

   1. COMPLETELY remove all mains and control power from the drive (e.g., 24VDC) for at least 5 minutes to allow internal capacitors to discharge.

2. 2

   2. Power down the drive, then firmly push the control module into the power module until it is fully seated and secured (e.g., using retaining clips).

3. 3

   3. Inspect the module interconnect pins and sockets between the control and power modules for bent pins, debris, or corrosion.

4. 4

   4. Apply power to the drive, then check for any other faults that may indicate physical damage from the previous "hot-swap" event.

5. 5

   5. If the fault persists, attempt to swap the control module with a known good one (if available) to isolate the faulty component.