Yaskawa Yasnac PC NC User Manual
Page 225
YASNAC PC NC Operating Manual
Appendix 2: Alarm Tables
A2 - 21
Alarm No.: 3181 to 3185 (Position Error)
Malfunction of the PG pulse counter in the absolute encoder is detected. Contact your Yaskawa representative after checking the
following:
1.
Whether the alarm occurs immediately after the control power is turned ON.
2
Whether the alarm occurs frequently during operation.
Alarm No.: 3201 to 3205 (Servo drive Communications Error)
Communication error between the NC and the AC servodrive unit is detected. Contact your Yaskawa representative.
Alarm No.: 3301 to 3305 (Over Current)
Contact your Yaskawa representative after checking the following:
1.
Whether the alarm occurs immediately after the control power in turned ON.
2.
Whether the alarm occurs after turning ON the main power.
Alarm No.: 3311 to 3315 (MCCB Trip)
Contact your Yaskawa representative after checking the following:
1.
Whether the alarm occurs immediately after the control power is turned ON.
2.
Whether the alarm occurs after turing ON the main power.
Alarm No.: 3321 to 3325 (Regeneration Error)
Contact your Yaskawa representative after the following:
1.
Whether the alarm occurs immediately after the control power is turned ON.
2.
Whether the alarm occurs after turning ON the man power.
Alarm No.: 3331 - 3335 (Over Voltage)
Contact your Yaskawa representative after the following:
1.
Whether the alarm occurs at the start of motor rotation.
2.
Whether the alarm occurs during deceleration.
Alarm No.: 3341 to 3345 (Under Voltage)
Contact your Yaskawa representative after the following:
1.
Whether the alarm occurs after turning ON the main power.
Alarm No.: 3351 to 3355 (Under Voltage)
ALARM CAUSE
CHECK ITEM
COUNTER MEASURE
Faulty control board
Check whether the alarm occurs imme-
diately after the control power is turned
ON.
Contact your Yaskawa representative.
Fan Stop
1. Check whether the alarms occurs
during operation. The alarm reoc-
curs if the control power is turned
ON after turning it OFF once, or the
operation restarts when the NC is
reset after several minutes.
2. Check to see if the fan is rotating
Contact your Yaskawa representative.