Toshiba NV Series Hardware Manual page 8

Unified controller
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4. Safety Precautions on Maintenance and Inspection
Make sure the external power supply is
turned off before installing and removing
Instruction
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
Prohibited
short circuit the battery
Otherwise, explosion or catching fire may
be caused.
Before touching the device or modules,
touch a grounded metal part to discharge
Instruction
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.
Instruction
For severe stains, use a cloth soaked with
water and wrung out. Leaving them
stained may cause misjudgment or
malfunction.
vi
6F8C1497
Warning
Turn off the device switch before replacing
the power fuse or alarm fuse for the device
Instruction
Operation without grounding may cause
electric shock or fire.
Use the specified items for fuse and
battery replacement.
Instruction
Other items may cause fire or failure.
At inspection, be extremely careful when
measuring the power-supply voltage at the
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module's power terminal
Otherwise, it may cause electric shock.
Caution
Do not drop the device and modules, hit
them, or give a strong shock on them.
Prohibited
Otherwise, failure may be caused.
The battery life of the controller varies
depending on the average annual
Instruction
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.

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