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VACON® NXP IP00 Drive Modules
Operating Guide
12.12.113 Fault 43 - Encoder fault, Subcode S12 - Dual speed supervision fault
Cause
Encoder speed supervision. The difference between the encoder speed and estimated speed is too large. Dual speed supervision:
Estimated speed and encoder speed difference is too high (0.05 x f
matedShaftFrequency.
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.
12.12.114 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.
12.12.115 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.
12.12.116 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.
12.12.117 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.
12.12.118 Fault 49 - Division by zero in application
Cause
Division by zero has occurred in application program.
170 | Danfoss A/S © 2023.09
or minimum motor nominal slip frequency). See variable Esti-
n
Specifications
AQ351737303996en-000201 / DPD00888
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