Toshiba PA912 - 2. Safety Precautions on Maintenance and Inspection; Maintenance and Handling Safety

Unified Controller nv series PROFIBUS(PA912) Module Instruction Manual
iii
2. Safety Precautions on Maintenance and Inspection
WARNING
Mandatory
When installing or removing
the module after wiring, make
sure that the external power
supply is off.
Otherwise, there will be live electric
poles on the back of the external
terminal block of the module,
causing an electric shock.
CAUTION
Prohibited
Do not drop, crush, or apply
strong shocks to the device or
board.
It may cause failure.
Mandatory
Before touching the device or
board, touch a grounded
metal to discharge the static
electricity of your body.
Otherwise, it may cause malfunction
or failure due to static electricity.
Mandatory
Wipe off stain on the device,
module, or board with a soft
cloth.
For severe stain, use a wet cloth
wrung tightly.
Leaving them stained may cause
wrong decision or malfunction.
Mandatory
Place a board or module
removed from the unit or base
unit on a conductive mat or
conductive bag (used for a
backup board, etc.) on a
grounded table.
Otherwise, parts may be damaged
due to static electricity.
Prohibited
Do not use benzene or thinner
to remove stain on device,
module, or board.
It may cause deformation or
discoloration of the device panel,
module, or board.