6.7 Auto-Tuning Fault Detection
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual 331
Digital Operator Display Error Name
Er-21 Z Pulse Correction Error
Cause Possible Solutions
Motor was coasting when Auto-Tuning was
performed.
Make sure the motor has stopped completely. Repeat Auto-Tuning.
Either the motor or the PG encoder on the motor is
not properly wired.
Check the wiring for the motor and the PG encoder. Repeat Auto-Tuning.
The direction for the PG encoder is set incorrectly, or
the number of pulses set for the PG encoder is
wrong.
Check the direction and number of pulses set for the PG encoder. Repeat Auto-Tuning.
PG encoder is damaged. Check the signal output from the PG encoder attached to the motor. Replace the PG if damaged.
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