Toshiba nv Series - 1. Safety Precautions in Installation

6F8C1872
ii
1. Safety Precautions on Installation
Warning
Ground the device.
Operation without grounding may
cause electric shock or fire.
Caution
Do not install/store/use the device
in the following environments:
• A place with a lot of dust
• A place with corrosive gases (SO
2
,
H
2
S) or flammable gases
• A place with vibrations and shocks
exceeding the allowed values
• A place with condensations due to a
sudden temperature change
• A place with low or high temperature
outside of the installation condition
• A place with high humidity which is
outside of the installation condition
• A place exposed to direct sunlight
• A place near devices generating
strong radio waves or magnetic
fields
Otherwise, accidents may be caused.
Install the device at a place where
maintenance and inspection are
easy to perform.
Otherwise, accidents may be caused.
Do not block the ventilation hole or
air inlet/outlet.
It may cause fire or failure due to
overheat.
For installation and wiring of the
system, observe the installation
conditions and methods described
in this manual.
Otherwise, it may cause a fall, fire,
failure, or malfunction.
Do not install and store the relay
output module under the following
conditions
• A place where there is silicon gas
• A place with silicon products are used
These may cause poor contact.
Avoid foreign debris like wire
scraps entering the modules or
units
These may cause fire, failure, or
malfunction.
Mount the power supply module,
the CPU module, expansion I/F
module onto the base unit for nv
series, because they are
exclusively for nv series.
Mount the PROFIBUS-DP module
on to the dedicated base unit.
Otherwise, it may cause electric shock,
injury, or failure.
Do not use them by themselves for other
purposes.
Turn power off before installing and
removing the modules, the base
unit, or the terminal blocks
Otherwise, it may cause electric shock,
malfunction, or failure.
When connecting a connector or
cable and mounting a module to the
base unit, push it in until it clicks
and screw it firmly
Insufficient screwing can cause failure or
malfunction due to vibrations.
Instruction
Instruction
Instruction
Prohibited
Prohibited
Instruction
Prohibited
Instruction
Prohibited
Ground