Troubleshooting
Change the frequency value polarity so that the encoder signal is positive. With some encoders, interchanging the encoder channels
can be used to change the indicated rotation direction.
12.10.107 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.
12.10.108 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.
Troubleshooting
•
Check cabling between encoder and OPTBE, especially Data and Clock signals.
•
Check that actual encoder type matches with OPTBE “Operating mode” parameter.
12.10.109 Fault 43 - Encoder fault, Subcode S7 - Ch A / Ch B Mismatch
Cause
Problem detected in encoder signals.
Encoder channels A and B are mismatched.
Troubleshooting
Do a check of the cable connections and terminals.
12.10.110 Fault 43 - Encoder fault, Subcode S8 - Resolver/Motor pole pair mismatch
Cause
Problem detected in parameterization of option board.
There is a mismatch of the resolver/ motor pole pair number. Resolver pole pair number (if >1) is not matching the motor pole pair
number.
Specifications
Operating Guide | VACON® NX Inverters FI4-FI8
AQ299433367205en-000101 / DPD00908| 153
Danfoss A/S © 2019.07
Summary of Contents for VACON NX FI6
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