User`s manual

252 • Vacon apfiff09 marine
Tel. +358
7
F43 Encoder fault
Encoder fault is issued when the drive is not able to operate in closed loop control mode (encoder is
used). See subcodes for details for the reason of the fault:
S1 =Encoder 1 channel A is missing
S2 =Encoder 1 channel B is missing
S3 =Both encoder 1 channels are missing
S4 =Encoder reversed
S5 =Encoder board missing
S6= Serial communication fault
S7=Ch A / Ch B Missmatch
S8=Resolver/Motor polepair mismatch
S9=Missed Start Angle
This fault comes when using PMS motor.
1. Modulation type is ASIC while incremental encoder is used.
 Change modulator type to Software 1
2. Start identification do not work due low identification current
 Increase identification current
3. Start angle identification is not working at all because there is no saturation based saliency
in the motor
 Use absolute encoder
4. There are too much noise pick-ups in encoder cable
 check encoder cable shield and grounding in drive
F44 Device changed (Default param.)
Possible cause:
1. Option board or power unit changed.
2. New device of different type or different rating from the previous one.
Correcting measures:
 Reset
 Set the option board parameters again if option board was changed. Set converter
parameters again if power unit was changed.
F45 Device added (default param.)
Possible cause:
1. Option board of different type added.
Correcting measures:
 Reset
 Set the option board parameters again.
F50 4mA supervision
Possible cause:
1. Current at the analogue input is below 4mA.
2. Signal source has failed
3. Control cable is broken or loose
Correcting measures:
 Check the current loop circuitry.