Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 30)

Chapter 4: Troubleshooting PC NC Maintenance Manual
4-9
• 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 Numbers 3181 to 3185 (Position Error)
Malfunction of the PG pulse (counter in the absolute encoder) is
detected. Contact your Yaskawa customer service 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 Numbers 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 Numbers 3301 to 3305 (Overcurrent)
Contact your Yaskawa customer service 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 Number 3311 to 3315 (MCCB Trip)
• Contact your Yaskawa customer service 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.