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3.4. Turning on Main Power
3.4.1. Precautions
！ Caution : Before turning on the power check the following. Misconnection may
(1) Connections of each cable.
(2) Connection of the Handy Terminal
(3) Confirm the safe conditions.
！ Danger: The operator shall be out of the Motor motion range.
！ Warning: The Motor is securely fastened to the machine base.
！ Warning: The load (work) is securely fastened to the Motor.
！ Danger: There shall be no mechanical interference when the Motor makes a full
！ Caution: For a System that equips with absolute position sensor, be sure to turn
3.4.2. Indication of Power on
(1) Turn on the power and make sure that the LED on the front panel of the Driver Unit is indicating
normal state.
Figure 3-17: In a state of alarm
P o w e r L E D : It is o n w h e n th e p o w e r is o n .
7 s e g m e n ts L E D : Id e n tifie s a ty p e o f a la r m .
l It in d ic a te s a ty p e o f a la r m in 2 d ig its . T h e
n u m b e r s w ill b e s h o w n in tim e - s h a r in g .
l If tw o o r m o r e a la r m s a r e r e p o te d , th e r e p o r t w ill
b e m a d e in tim e s h a r e in g .
(2) Be sure if the Emergency stop (CN2, #12: EMST) input is activated.
！ Danger : Be sure to connect the emergency stop (EMST) input.
(3) The System is in the normal state when the display shows the colon ":" after the message of "NSK
MEGATORQUE."
Figure 3-19: Indication of the display of the Handy Terminal
NSK MEGATORQUE
MS1A50-*****
E*****
:_
result in a breakage of the Driver Unit.
turn
on the power when the Motor is stationary. Otherwise it may alter the
setting of the coordinates.
N o r m a l: G r e n n
A b n o r m a l: O r a n g e
à When the emergency stop input is ON, the 7 segments LED on the front panel
indicates the alarm code in the order of F ® 4 ® - . If not, refer to "10. Alarm."
Figure 3-18: In the normal state
Differs with the System type.
— 3-19 —
3.4. Turning on Main Power
3.4.1. Precautions
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Troubleshooting
