TDK-Lambda LC1202, Instruction Manual

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83494001 Rev H Page 23 of 27
b) For fuse PCB assembly Rev. E or higher, use kits 12494004 or 12494005.
Three fuses need to be replaced for the conversion. These fuses are all located on
the fuse assembly (Fig 14). Replace the fuses F4, F5, and F6 are 60A for the
208VAC and 30A for the 400VAC supply. Fuse F1, F2, F3 do not need replace-
ment.
After replacing the fuses slide the fuse assembly back into the supply.
First use a 6 x 1¼ (74-011-011) screw (supplied in the kit to locate fuse assembly
in place by screwing the long screw in the bottom of the supply. Screw in the 4
screws on the rear panel of the power supply. Then go back and replace the 6 x
1¼ long screws in the bottom of the screw with the correct 6 x
¾“ (74-039-008)
screws.
7.2.3 SELECTOR SWITCHES ON AUX POWER BOARD
There are 3 selector slide switches on the Aux Board which have to be correctly
selected. For 208VAC line operation the position of the slide switches should be so
that 110VAC is visible. For 400V line 220VAC should be visible.
The Aux Board is located on the front right hand corner (standing in front of the
supply). Figure 13 shows the location of the slide switches on the Aux Board. The
slide switches can be selected with a flat head screw driver.
7.2.4 CORRECTING THE INPUT LABEL
The input label is located on the rear panel and is screwed to the chassis with 4 6
x .312 screws. The input label plate is silk screened on both sides. One side is for
the 208VAC line and the other side is for the 400VAC line.
Unscrew the silk screened input label plate and reverse it for the changed input
voltage.
The supply is tested for both input voltages prior to being shipped. On completion
of the above steps, the supply is ready for operation with the changed input volt-
age.