Danfoss VACON NX FI6 Operating Manual page 156

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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

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