Diagnostics and Troubleshooting
De te cte d Fault
Nam e Probable cause Re m edy
Instability or driving load too
Check the motor, gain and
•
Add a braking resistor.
•
Check the size of the motor/drive/load.
•
Check the parameters settings for the
[FREQUENCY METER]
(FqF-)
function page 266, if it is
configured.
SPF
[Spe e d fdback
loss]
•
Signal on "Pulse input" missing, if the
input is used for speed measurement.
•
Encoder feedback signal missing
•
Check the w iring of the input cable and the detector used.
•
Check the configuration parameters of the encoder.
•
Check the w iring between the encoder and the drive.
•
Check the encoder.