Danfoss VACON NXP IP00 Operating Manual page 169

VACON® NXP IP00 Drive Modules
Operating Guide
Troubleshooting
• Do a check of the encoder board.
• Do a check of the terminals.
• Do a check of the board connections.
12.12.107 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.
12.12.108 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.
12.12.109 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.
Troubleshooting
Check that OPTBC parameter "Resolver Poles" and possible Gear Ratio parameters in application match motor pole count.
12.12.110 Fault 43 - Encoder fault, Subcode S9 - Missed Start Angle
Cause
Encoder zero positioning identification run has not been made.
The encoder start angle is missing.
Troubleshooting
Make encoder identification run.
12.12.111 Fault 43 - Encoder fault, Subcode S10 - Sin/Cos encoder feedback is missing
Cause
Problem detected in encoder signals.
For the closed loop control, encoder modes "EnDat only" or "SSI only" (absolute channel only) are not allowed.
Troubleshooting
• Do a check of the wiring, jumper settings, and encoder mode.
• Change OPTBE "Operating mode" parameter is either "EnDat+SinCos", "SSI+SinCos" or "SinCos only", or avoid using closed loop
control.
12.12.112 Fault 43 - Encoder fault, Subcode S11 - Encoder angle is drifting
Cause
Error angle between the angle read from the absolute channel and the angle calculated from the incremental channels.
Troubleshooting
• Check the encoder cable, cable shield, and grounding of the cable shield.
• Check the mechanical mounting of the encoder and make sure that the encoder is not slipping.
• Check the encoder parameters (for example, encoder ppr).
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Specifications
AQ351737303996en-000201 / DPD00888 | 169