Toshiba nv Series - Page 85

7.1 If a Trouble is Suspected
Unified Controller nv series type2 light Controller Unit Instruction Manual
67
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Power system check
If POWER LED of the power module's front panel does not light up, or a power failure
occurs after a certain time when power is turned on, check the following:
Figure 7-2 Power system check procedure
Remark
・ When removing or reinstalling a cable or module, make sure that power is kept off
throughout the process.
Is supply voltage within
criterion?
Does POWER LED light up
when all modules other than
power supply are removed
(i.e., with only base unit and
power module installed)?
Install the modules one by one
to identify the state where
POWER LED goes out.
YES
YES
NO
YES
NO
Power module PS693:AC85-264V
The power module or base unit is faulty.
Make adjustments to place the total current
consumptions of the component modules
and
units within the criteria.
The module installed immediately before
POWER LED went out is faulty
.
Check that the 5 V internal
and 24 V external current
consumptions are within
criteria.