Toshiba EN655, Instruction Manual

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Unified Controller nv series Ethernet Module(EN655) 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,
module, or board.
Otherwise it will cause failure.
Mandatory
Before touching the device,
module, 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) 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.