Yaskawa PC NC - Manual (Page 172)

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YASNAC PCNC Operating Manual Chapter 4: Maintenance
(13)Alarm Nos.: 3161 to 3165 (Absolute Error)
Malfunction of the absolute encoder is detected. Contact your Yaskawa representative after
checking the following:
• Whether the alarm occurs immediately after the control power is turned ON.
• Whether the alarm is cleared when the power is turned OFF and then turned ON again.
• Whether the battery alarm occurs at the same time.
(14)Alarm Nos.: 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:
• Whether the alarm occurs immediately after the control power is turned ON.
• Whether the alarm occurs frequently during operation.
(15)Alarm Nos.: 3201 to 3205 (Servo Drive Unit Communication Error)
Communication error between the NC and the AC servo drive unit is detected. Contact your
Yaskawa representative.
(16)Alarm Nos.: 3301 to 3305 (Over current)
Contact your Yaskawa representative after checking the following:
• Whether the alarm occurs immediately after the control power is turned ON.
• Whether the alarm occurs after turning ON the main power.
(17)Alarm No.: 3311 to 3315 (MCCB Trip)
Contact your Yaskawa representative after checking the following:
• Whether the alarm occurs immediately after the control power is turned ON.
• Whether the alarm occurs after turning ON the main power.