Yaskawa PC NC - Manual (Page 32)

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YASNAC PCNC Operating Manual Chapter 2: Basic Operation of YASNAC PCNC
• When the NC unit enters the ready state, the alarm message (displayed on the screen)
will go off.
ú If the NC unit fails to enter the ready state, locate the cause by referring to Section 7.2,
“ALARM DISPLAY JOB”, and take appropriate steps. For turning the power ON,
there are items that must be inspected at the machine side in addition to the NC unit
related items. For the former items, refer to the machine tool manuals.
FIGURE 2.3.1.1: Power ON Sequence
2.3.2 Checking the Motors for Abnormalities
Check the operation of the motors running. If abnormal vibration or noise occurs, turn the power
OFF and contact the maintenance personnel.
2.3.3 Procedure for Turning Power OFF
Turn the power OFF in the following sequence:
€ Make sure that the CYCLE START lamp on the machine operation panel is OFF
with the machine stopped.
ó Make sure that there is no alarm message displayed on the CRT screen. If an alarm
message is displayed, locate the cause by referring to Chapter 4, “MAINTENAN-
ACE” and take appropriate measures to clear it.
ì Carry out necessary STEPS for turning the power OFF at the machine side. For
details, refer to the machine tool manuals.
ö Press the EMERGENCY STOP button on the machine operation panel to turn the
servo power OFF.Press SHUTDOWN button to close all opened windows of PCNC.
ú When the safe SHUTDOWN message is displayed on CRT ,Press the POWER OFF
button on the NC operation panel to shut off the power to PCNC.
PCNC Boots MMI screens
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