Toshiba nv Series - 8.1 Daily Inspections

Chapter 8 Maintenance and Inspection
6F8C5572
80
8.1 Daily Inspections
Check the items below daily while the controller is in operation .
CAUTION
If you find smoke or catch an unusual odor, power
off the controller.
Fire or explosion may result.
Remark
・ To keep the system normal and prevent unwanted troubles, perform daily and
periodic inspections and cleaning.
Table 8-1 Daily inspections
Item Inspections Actions
Check the LEDs on
the power module’s
and the controller
module’s front panels
POWER (green): On when 5 V
power is normal.
If the LED action is
abnormal, follow the
procedure detailed in
Chapter 7,
"Troubleshooting".
RUN (green): Off during normal
operation.
ERR (red): Off when controller
module is normal.
BATT (green): On when battery
voltage is normal.
Check the LED
display of the TC-net
I/O unit's input
module (digital input)
When the external input signal is
ON, the corresponding LED must
light up.
・ Check whether the input
voltage meets the
criterion.
・ Check whether the input
terminal block is not loose.
・ Check whether the
module is installed firmly.
Check the LED
display of the TC-net
I/O unit's output
module (digital
output)
When the output is ON, the
corresponding LED must remain lit
up and the corresponding external
load must operate.
・ Check whether the
external load voltage
meets the criterion.
・
Check the built-in fuse.
・ Check whether the
output terminal block is
not loose.
・ Check whether the
module is installed firmly.
Check the switch
osition of the
controller module
Operation mode key switch (HALT/
RUN/P-RUN) and DIP switch (the
controller operates when the
operation mode key switch
position
is RUN)
Place the switch in the
predetermined position.
Mandatory
