Troubleshooting
•
Check the encoder speed signal ShaftFrequency vs. EstimatedShaftFrequency.
•
If the ShaftFrequency is incorrect, check the encoder, cable, and encoder parameters.
•
If the EstimatedShaftFrequency is incorrect, check the motor parameters.
12.10.115 Fault 43 - Encoder fault, Subcode S13 - Encoder angle supervision fault
Cause
The estimated shaft position error (estimated angle - encoder angle) is more than 90° electrical.
See variable EstimatedAngleError.
Troubleshooting
•
Repeat the encoder ID run (absolute encoders).
•
Check the mechanical mounting of the encoder and make sure that the encoder is not slipping.
•
Check the encoder ppr number.
•
Check the encoder cable.
12.10.116 Fault 43 - Encoder fault, Subcode S14 - Encoder estimated missing pulse fault, switch from
the CL ctrl to the OL sensorl
Cause
Problem detected in encoder signals.
Software has detected too many missing pulses in the encoder. Closed loop control is switched to sensorless open loop control.
Troubleshooting
•
Do a check of the encoder.
•
Do a check of the encoder cable, cable shield, and grounding of the cable shield.
•
Do a check of the mechanical mounting of the encoder.
•
Do a check of the encoder parameters.
12.10.117 Fault 44 - Device changed (different type), Subcode S1 - Control board
Cause
•
Option board or power unit changed.
•
New device of different type or different power rating.
Troubleshooting
•
Reset.
•
If option board was changed, set the option board parameters again.
•
If power unit was changed, set AC drive parameters again.
Specifications
Operating Guide | VACON® NX Inverters FI4-FI8
AQ299433367205en-000101 / DPD00908| 155
Danfoss A/S © 2019.07
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