Safety Precautions
iii
2. Safety precautions on maintenance and inspection
DANGER
Mandatory action
When inserting or removing the module or when connecting
the equipment, turn off the power.
Otherwise, an electric shock accident or failure of the device may
occur.
Mandatory action
When inserting or removing the module after wiring, make
sure that the external power supply is turned off.
There are electrodes on the back of the external terminal block of the
module, which may cause an electric shock.
Caution
Mandatory action
Do not drop, bump, or apply strong shock to the device or
module.
Failure may occur.
Mandatory action
Before touching the device or module, touch a grounded
metal to discharge static electricity of the human body.
Otherwise, static electricity may cause malfunction or failure of the
device.
Mandatory action
Place the module removed from the chassis or base unit on
a conductive mat or conductive bag on a grounded table.
Otherwise, parts may be damaged due to static electricity.
Mandatory action
Wipe off stain on the device or module with a soft cloth.
For severe stain, use a wet cloth that is wrung out tightly.
If stain is left, wrong determination or operation may occur.
Mandatory action
Do not use any benzene or thinner to remove stain on the
device or module.
It may cause deformation or discoloration of the device panel or
module.
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