Toshiba nv Series Instruction Manual page 5

2. Safety Precautions on Maintenance and Inspection
When installing or removing
the module after wiring, make
Mandatory
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.
Do not drop, crush, or apply
strong shocks to the device or
Prohibited
board.
It may cause failure.
Before touching the device or
board, touch a grounded
Mandatory
metal to discharge the static
electricity of your body.
Otherwise, it may cause malfunction or
failure due to static electricity.
Wipe off stain on the device,
module, or board with a soft
Mandatory
cloth.
For severe stain, use a wet cloth wrung
tightly.
Leaving them stained may cause wrong
decision or malfunction.
WARNING
CAUTION
Mandatory
Prohibited
Unified Controller nv series TC-net I/O Serial Communication Module IS911 Instruction Manual
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.
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.
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