Toshiba nv Series - 8.2 Periodic Inspections

8.3  保守部品 
Unified Controller nv series type2 light Controller Unit Instruction Manual
81
8.2 Periodic Inspections
Check the items below periodically (once every six months). Check them also when the
ambient conditions or environment change.
WARNING
During inspection, pay special attention
to not touch
the power when measuring the
supply voltage at the
power terminal of the module.
Failure to observe it may cause an electric shock.
WARNING
Never attempt to remodel, repair, disassemble, or
adjust the equipment, any module, or board.
Failure to observe this may cause an electric shock.
Contact a branch office or our service agent if you have an
operation failure and a trouble.
Table 8-2 Periodic Inspections
Item Inspections Criterion
Power supply
Supply voltage
.
(Measure this at the power terminal block of
the module.)
PS693:AC85-264V
Check whether the power terminal screw is not loose. Must not be loose.
Check whether the cable is not damaged. Must not be damaged.
Installed
conditions
Check whether the controller unit's base unit is secured
firmly.
Must not be loose or rattle.
Check whether the TC-net I/O unit's base unit is secured
firmly.
Must not be loose or rattle.
Check whether the modules of the controller unit are secured
firmly.
Must not be loose or rattle.
Check whether the cable connector is not loose and the
cable is not damaged.
Must not be loose or rattle.
nV-Tool
Check whether there is no problem with the functionality of
nV-Tool
nv-Tool works normally.
Check whether the connector is not loose and the cable is
not damaged.
Must not be loose or be damaged.
I/O
Measure the voltage at the I/O terminal block of each I/O
module.
Must meet the criterion.
Check the input status display LED. Must light up normally.
Check the output status display LED. Must light up normally.
Check whether the I/O terminal block is fixed firmly. Must not be loose or rattle.
Check whether terminal screws are not loose and there are
no possibilities of contact between screws.
Must not be loose, and there must not
be any possibilities of contact.
Check whether the cable is not damaged. Must not be damaged.
Ambient
environment
Check the temperature, humidity, vibration, and dust amount
and other related environmental conditions meet the criteria.
Must meet the requirements in the
general specification.
Programs
Check whether the contents of the controller unit program
and the nV-Tool master program match.
Perform a compare check. The
contents must match.
Battery
Check whether the battery is not needed to be replaced.
(The battery installation date is labeled on the controller
module's maintenance cover.)
It is recommended that the battery
should be replaced every 5 years
when the annual average temperature
is 30

C or less, or every 2 years when
the annual average temperature is
30

C or more.
Check whether the battery connector is connected firmly. Must not be loose.
Check the
Duplex
function
Change master and slave mode by nv-Tool and
confirm that MASTER-RUN, SLAVE-RUN operate
normally
RUN normally
Mandatory

Prohibited