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3.
Maintenance of Controller
3.1
Cautions on Maintenance and Inspection
When performing maintenance and inspection of the controller, follow the items given
below so that the work can be carried out safely.
•
Before removing the controller cover for maintenance or inspection, be sure to
turn off the main power switch of the controller.
Also, turn off the power breaker when connecting or disconnecting the power
cable.
•
DO NOT touch the servo driver for at least two (2) minutes after the main power
switch is turned off. The large-capacity capacitor in the servo driver may be
charged with voltage, and touching the servo driver could lead to electric
shocks.
•
DO NOT disconnect the battery connector at other than battery replacement.
Otherwise, files saved in the memory may be lost.
Be sure to turn off the main power switch. If the main power switch remains ON,
the servo power printed board, servo printed board and switching power supply are
charged, and touching them could lead to electric shocks. To avoid this, be sure to
turn off the main power switch before starting the work.
!
CAUTION
!
DANGER
– 74 –
MAINTENANCE MANUAL
STE 85321
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