Yaskawa PC NC - Manual (Page 237)

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YASNAC PCNC Operating Manual Appendix 2: Alarm Tables
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 alrm occus 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 Contact your Yaskawa representative.
immediately after the control power is
turned ON.
1. Check whether the alarms occurs
during operation. The alarm reoccurs
if the control power is turned ON after Contact your Yaskawa representative.
Fan Stop 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