YASKAWA yasnac i80m Instruction Manual page 8

PRECAUTIONS RELATING TO MAINTENANCE AND INSPECTION
A
WARNING
Always turn the
power OFF (including the primary power supply)
before carrying out
daily inspection.
Carrying
out
the inspection with the
power
ON
may
lead
to
electric shock.
• Wait
5
minutes after turning the power (including the primary power supply)
OFF
before removing
or
replacing any
unit or
part.
Failure
to
observe this
warning
may
lead
to
electric shock and product failure.
Be
sure to turn the power OFF before replacing the battery.
Failure
to
observe this warning
may
lead
to
electric shock and product failure.
A
CAUTION
•
To prevent personnel
other than those involved in maintenance and inspection
work
from turning ON the power while maintenance and inspection is in progress, place
signs stating 'Do not turn the power
on" or words to that effect at the primary power
supplies of
related control
panels and other relevant locations.
Failure
to
observe this caution
may
lead
to
electric shock.
•
Replace fuses and batteries with the designated products.
Failure
to
observe this caution
may
result in fire or product
failure.
Electronic devices such as C MOS ICs are rsed on the control boards. If you touch
them
with your
bare fingers
the static electrical charge in your body
could
destroy
them; care must be taken when handling these
devices. Before handling these
devices for maintenance purposes,
first discharge the static electricity in your body
by touching a grounded metal device.
Failure
to
observe this caution could lead
to injuries and product failure.
•
Do not install
or remove
boards, wiring, connectors, etc., while the power
is ON.
Failure
to
observe this caution could lead
to
electric
shock,
product failure, and
malfunction.