Toshiba Programmable Controller PROSEC T3 - Manual (Page 80)

5. Maintenance and Checking
5.5
Replacing fuses
CAUTION 1
w
2,
3.
The battery can be replaced either with power ON or
with power OFF.
However if the battery is replaced with power OFF,
insert a new battery within five minutes after the old
battery is removed. If the new battery is not inserted
quickly, the data in FIAM memory wiil be tost.
Keep the following points in mind when handling
batteries.
•
Do not replace a lithium battery with a manganese
dry cell or an alkaline battery since their voltages
are not compatible with the former.
• Do not short the + (positive) and the - (negative)
terminals of the battery.
• Do not dismantle, or apply heat to, or throw the
battery into fire.
• Do not try to charge a battery. This is dangerous.
The battery is dedicated for Toshiba PLC. Order it
from Toshiba. (Part code: TBT911*AS)
The following modules have buitt-in protection fuses.
Name of module
(type)
Fuse type
Number
of units
Fuse rating
AC power supply
(PS361)
FU913 1 250 Vac - 3A
DC power supply
(PS332) FU916 1 250 Vac - 6A
DC output fD0333) FU916 2 250 Vac - 6A
DC output (D0334) FU916 2 250 Vac - 6A
AC output (AC363) FU916 2 250 Vac - 6A
AC output (AC364) FU916 2 250 Vac - 6A
The AC and DC power supply modules have a built-in protective
fuse to prevent burn-out of internal circuits of the modules.
Over long term use, ON/OFF changes of the power may cause
fatigue; check the fuse periodically (a spare fuse is attached).
The above output modules have protective fuses to prevent their
internal circuits from burn-out when short-circuit occur.
In the front of each output module, the LEDs (FL, FH or F) which
indicate the status of fuses are provided. When a fuse is blown,
these LEDs light.
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PROSEC T3