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Troubleshooting
Do a check of the encoder connections.
Do a check of the option board.
Measure the encoder pulses.
If the pulses are correct, the option board is faulty.
If the pulses are not correct, the encoder/cabling is faulty.
11.1.110 Fault 43 - Encoder fault, Subcode S2 - Encoder 1 channel B is missing
Cause
Problem detected in encoder signals.
Encoder channel B is missing.
Troubleshooting
Do a check of the encoder connections.
Do a check of the option board.
Measure the encoder pulses.
If the pulses are correct, the option board is faulty.
If the pulses are not correct, the encoder/cabling is faulty.
11.1.111 Fault 43 - Encoder fault, Subcode S3 - Both encoder 1 channels are missing
Cause
Problem detected in encoder signals.
Encoder channels A and B are missing.
Troubleshooting
Do a check of the encoder connections.
Do a check of the option board.
Measure the encoder pulses.
If the pulses are correct, the option board is faulty.
If the pulses are not correct, the encoder/cabling is faulty.
11.1.112 Fault 43 - Encoder fault, Subcode S4 - Encoder reversed
Cause
Problem detected in encoder signals.
The encoder is reversed. The output frequency has been set to the positive value, but the encoder signal is negative.
Troubleshooting
Change the frequency value polarity so that the encoder signal is positive. With some encoders, interchanging the encoder chan-
nels can be used to change the indicated rotation direction.
11.1.113 Fault 43 - Encoder fault, Subcode S5 - Encoder board missing
Cause
The encoder board is missing.
Troubleshooting
Do a check of the encoder board.
Do a check of the terminals.
Do a check of the board connections.
11.1.114 Fault 43 - Encoder fault, Subcode S6 - Serial communication fault
Cause
Problem detected in encoder signals.
Serial communication fault. The encoder cable is not connected or there are interferences in the cable.
AB296635287482en-000301 / DPD00903 | 345
Danfoss A/S © 2023.02
Fault Tracing
VACON® NX All-in-One
Application Guide
Summary of Contents for VACON NX
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