Terminal Board not Connected
Yaskawa · GA500 Maintenance and Troubleshooting
Hva betyr CPF25 ?
This fault indicates that the terminal board is not properly connected to the drive. A loose or disconnected terminal board will disrupt essential I/O functionality and communication, preventing normal drive operation.
Vanlige årsaker
- Terminal board connector not fully seated in its receptacle on the drive main board.
- Physical damage to the terminal board connector pins or the drive's mating receptacle.
- Broken latching mechanism on the terminal board preventing secure connection.
- Accumulation of dust or debris in the connector socket preventing full electrical contact.
- Damage to the flexible PCB cable (if present) connecting the terminal board to the main board.
Reparasjonssteg & Sjekkliste
Klikk på steg for å spore fremgangen.
- 1
1. Power down the drive and wait for DC bus capacitors to discharge (verify 0V at P+, N-).
- 2
2. Carefully unseat the terminal board from the drive.
- 3
3. Inspect the terminal board connector pins and the drive's receptacle for bent pins, damage, or debris.
- 4
4. Clean the connector contacts using a non-residue electronic cleaner and a soft brush.
- 5
5. Firmly re-seat the terminal board, ensuring it clicks into place and is flush with the drive housing.
- 6
6. Check for continuity across critical I/O terminals (e.g., DI1 to COM, 24VDC to COM) after reconnection.