Toshiba nv Series Instruction Manual page 5

2. Safety Precautions on Wiring
Connect the cables while the
power is off.
Mandatory
Otherwise, it may cause an electric shock
or failure.
When wiring the module, use
crimp contacts with sheath, or
Mandatory
cover it with tape.
Otherwise, exposed conductors may
cause an electric shock.
Connect an external power
supply that matches the rating.
Mandatory
Otherwise, it may cause an explosion or
fire.
Wiring work must be done by
qualified experts.
Mandatory
Wrong wiring may cause a fire, electric
shock, or failure.
Install a fuse that matches the
current capacity to the external
Mandatory
circuit for overload protection of
the relay output module.
Otherwise, a load short-circuit may cause
an accident or damage to the machine.
When using the contact relay
used for relay output, check the
Mandatory contact life.
If the contact life of the relay is expired, an
output error may occur due to a defective
contact, resulting in an accident or damage
to the machine.
Contact relays have a life due to wearing
of the contact. If the life is expired,
replace it with a new one.
WARNING
Install the terminal block cover
securely to the terminal block.
Mandatory
Exposed conducting parts may cause an
electric shock.
CAUTION
Observe the tightening torque.
If it is too loose, it may come off.
Mandatory
If the tightening torque is out of specified
range, it may be broken off.
M3.5 screw: 0.8 to 1.2 N･m
M3 screw: 0.5 to 0.75 N･m
Install the battery before use.
If the RAM is operated without any battery,
Mandatory
memory data or programs may be lost,
causing an accident or damage to the
machine due to malfunction.
Replace the battery according to the
battery replacement cycle guideline.
Turn on the power in the
following order:
Mandatory
Turn on the power of the nv series, and
then turn on the I/O module supply
external power and external load
power.
If this order is not followed, it may cause
an accident or damage to the machine due
to malfunction.
Unified Controller nv series type2 SOE Function Instruction Manual
iii