Toshiba nv Series - Page 8

6F8C1575
vi
Mandatory
Install the battery before use.
If the RAM is operated without any
battery, 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.
Mandatory
Turn on the power in the following
order:
Turn on the power of type2 light
controller→ Turn on the external power for
the I/O module and the external power for
the load.
If this order is not followed, it may cause
an accident or damage to the machine
due to malfunction.
Mandatory
For system safety, turn off the load
power before the power of the nv
series type2 light.
If this order is not followed, it may
cause an accident or damage to the
machine.
Share the external power supply for the
I/O module with the load power supply
whenever possible. If this is not
possible, construct the system so that
the external power supply and load
power supply are turned off
simultaneously.
4. Safety Precautions in Maintenance and Inspection
DANGER
Mandatory
When installing or removing the
module, unit, terminal block, or wiring
cable, 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.
Prohibited
Do not connect the battery in
reverse, charge, disassemble,
overheat it, throw it into fire, or
short-circuit it.
I t may cause an explosion or fire.
Mandatory
When replacing the power fuse or
alarm fuse of the device, turn off
the power of the controller.
Otherwise, it may cause an electric
shock or fire.
Mandatory
Replace fuses or batteries with
specified items.
Using anything other than specified
may cause a fire or failure.
Mandatory
Be extremely careful when
measuring the power supply
voltage at the power terminal part
of the module during an inspection.
Otherwise, it may cause an electric
shock.