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CHAPTER 5 Operation Procedure for System with PIR
2.8 Replacement Procedure of Fuse
The system uses the following fuses as a protection against an overload resulting from
a short circuit.
When excessive current is applied to a PWR circuit card, the related fuse is blown. The blown fuse after a fault
can be confirmed as shown in the following figure.
The purpose of fuses is to let them blow before the components are damaged. If any fuse gets blown, replace it
immediately with a new one using the following procedure:
(1) Confirm the blown fuse via System Message [6-A] or MJ lamp.
(2) Replace the fuse with the new one.
(3) Determine the cause of the blown fault.
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
25A1.5A
12.5V
10A
If a fuse is blown,
this area turns white.
A normal fuse A blown fuse
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