130 · vacon
Fault codes
Tel. +358 (0)201 2121 • Fax: +358 (0)201 2121 205
9
F50 4mA
supervision
Possible cause:
-
Current at the analogue input is below 4mA.
-
Signal source has failed.
-
Control cable is broken or loose.
Correcting measures:
-
Check the current loop circuitry.
F51 External
fault
Possible cause:
-
Digital input fault.
Correcting measures:
-
Remove fault situation from the external device.
F52 Keypad
communication
Possible cause:
-
The connection between the control panel (Keypad) or NCDrive and the AC drive is broken.
Correcting measures:
-
Check control panel connection and possible control panel cable.
F53
Fieldbus communication fault on slot D
Possible cause:
-
The data connection between the fieldbus Master and the fieldbus board is broken.
-
Watchdog pulse is missing from PLC, if Control Slot selector is 0, or set for slot D.
Correcting measures:
-
Check installation.
-
If installation is correct, contact your local distributor.
F54 Slot
fault
Possible cause:
-
Defective option board or slot.
Correcting measures:
-
Check the board and the slot.
-
Contact your local distributor.