Toshiba nv Series, Hardware Manual

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6F8C1497
vi
4. Safety Precautions on Maintenance and Inspection
Warning
Make sure the external power supply is
turned off before installing and removing
the modules, units, terminal blocks, the
terminal block signal conversion adapter
and wiring cables
Otherwise, there will be live electrode on
the back of the external terminal block of
the module, which may cause electric
shock.
Do not connect in reverse, charge,
disassemble, heat up, throw in a fire, and
short circuit the battery
Otherwise, explosion or catching fire may
be caused.
Turn off the device switch before replacing
the power fuse or alarm fuse for the device
Operation without grounding may cause
electric shock or fire.
Use the specified items for fuse and
battery replacement.
Other items may cause fire or failure.
At inspection, be extremely careful when
measuring the power-supply voltage at the
module's power terminal
Otherwise, it may cause electric shock.
Caution
Before touching the device or modules,
touch a grounded metal part to discharge
the static electricity on your body.
Otherwise, static electricity on your body
can cause malfunction or failure.
Wipe the dirt on the device or modules
with a soft cloth.
For severe stains, use a cloth soaked with
water and wrung out. Leaving them
stained may cause misjudgment or
malfunction.
Do not drop the device and modules, hit
them, or give a strong shock on them.
Otherwise, failure may be caused.
The battery life of the controller varies
depending on the average annual
temperature. Check the instruction manual
of each controller and replace.
Depending on applications, the battery
drain may cause loss of data and
programs saved on the controller, resulting
in accident or machine damage from
malfunctioning.
Instruction
Instruction
Instruction
Prohibited
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Instruction
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Prohibited
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