Danfoss VACON NXP IP00 - Page 168

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Set the deceleration time longer.
Dimensioning of the brake chopper is not correct.
Use external brake resistor.
12.12.102 Fault 43 - Encoder fault, Subcode S1 - Encoder 1 channel A is missing
Cause
Problem detected in encoder signals.
Encoder channel A 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.
12.12.103 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.
12.12.104 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.
12.12.105 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.
12.12.106 Fault 43 - Encoder fault, Subcode S5 - Encoder board missing
Cause
The encoder board is missing.
AQ351737303996en-000201 / DPD00888168 | Danfoss A/S © 2023.09
Specifications
VACON® NXP IP00 Drive Modules
Operating Guide