Amada S-2200CA, Operation Manual

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CHAPTER 5: MAINTENANCE
IS-2200CA/4500CA INVERTER POWER SUPPLY
990-412 5-9
Section III: Fuse Failure and Replacement
Lethal Voltages exist in the IS-2200CA / IS-4500CA Power Supply. The information in this Section is
provided to give the end user an overview of the protection devices that are installed in the Power Supply.
If the Power Supply stops functioning and a fuse opens, it is important to identify and fix the problem
before replacing the fuse and reapplying power to the Power Supply.
CAUTION
Do not attempt to replace any fuses other than those described below. All
other fuses in the Power Supply should only be serviced by factory-
authorized technicians or serious damage to the Power Supply could result.
Whenever a fuse needs to be replaced, the following steps should always be followed:
1. Turn OFF the Main A.C. Power to the IS Power Supply (external breaker used to supply
power to the Power Supply).
2. Turn OFF the Main Power Switch on the IS Power Supply.
3. Allow a minimum of 5 minutes for the capacitors to discharge before opening the front door
of the IS Power Supply and then open the front door.
4. Depending on the Fuse that needs to be replaced, the Safety Shield may need to be removed
as described in
Section I, Before You Start .
5. Identify the source of problem and repair.
6. Replace the damaged fuse.
7. Assemble in the reverse order and re-test.
The IS-2200CA and IS-4500CA have a similar system architecture. The location of the system
components will vary depending on the power supply, date of manufacture and installed options. Refer
to the appropriate section below for your power supply.