APPENDIX 5 ERROR PROCESSING IN PG ZERO-PULSE ADJUSTMENT
91
Error processing during PG Zero-
pulse Adjustment
First error?
Yes
Is PG zero-pulse
adjusted at motor only?
Contact your YASKAWA
representative.
No
Is the motor vibrating?
Is STO displayed?
Disconnect motor from ma-
chine, and readjust PG zero-
pulse.
No
Reduce values of ASR gain 1
(C5-01) and ASR P gain at start
(C5-07) by 2/3, and then readjust
PG zero-pulse.
Yes
Yes
Did Er-18 occur?
Contact your YASKAWA
representative.
(Er-10 not included)
Are settings of motor
constants correct?
Yes
Refer to 4.3 (3) Setting and
Verification before Operation to
confirm settings of motor
constants, and then readjust PG
zero-pulse.
No
No
No
Yes
Cause 1: ASR P gain at start (C5-7) is too small.
Corrective action: Increase the ASR P gain at start 1.5 times.
Cause 2: Motor wiring or rotation direction of PG is incorrect.
Corrective action:Referto4.3(3)(d)CheckingtheMotorSpeed
Detection.
Cause 3: PG constant (F1-01) is incorrect.
Corrective action: Correct set value. After removing cause,
readjust PG zero-pulse.
Cause 4: Set value for operation selection for setting of E1-08 or
less (b1-05) is 30 min
-1
or more.
Corrective action: After setting the min.speedto0 and adjusting
the PG zero-pulse, reset the min. speed.
Note: If the acceleration/deceleration times (C1-01 and C1-02) are set to values other than their
initial settings, change them back to their initial values and then adjust the PG zero-pulse.
Fig. A-1 Error Processing in PG Zero-pulse Adjustment
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