Danfoss VACON NX FI6 Operating Manual page 156

Operating Guide | VACON® NX Inverters FI4-FI8
12.10.118 Fault 45 - Device added (different type), Subcode S1 - Control board
Cause
Option board of different type added.
Troubleshooting
• Reset.
• Set the power unit parameters again.
12.10.119 Fault 49 - Division by zero in application
Cause
Division by zero has occurred in application program.
Troubleshooting
• If the fault shows again while the AC drive is in run state, ask instructions from the local distributor.
• For an application programmer: do a check of the application program.
12.10.120 Fault 50 - Analogue input Iin < 4 mA (sel. signal range 4 to 20 mA)
Cause
Current at the analog input is < 4 mA.
• Control cable is broken or loose
• signal source has failed.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
Do a check of the current loop circuitry.
12.10.121 Fault 51 - External fault
Cause
Digital input fault.
Digital input has been programmed as external fault input and this input is active.
Troubleshooting
• Check the programming.
• Check the device which the error message indicates.
• Check the cabling for the respective device.
156 | Danfoss A/S © 2019.07
Specifications
AQ299433367205en-000101 / DPD00908