7.2.4 Power Card Mounting Plate
1.
Remove the control assembly mounting bracket in accordance with procedure.
2.
The power card mounting plate (see Figure 7-1) can be removed with the power card
still mounted, if so desired. If the power card is to be removed, remove it in accordance
with the power card procedure.
3.
To remove the power card mounting plate with the power card attached, unplug con-
nectors MK100, MK102, MK105, MK106, MK107, and MK109 (see Figure 7-2).
4.
If customer connections are present, unplug connectors FK102, FK103, and MK112.
5.
Remove the nut (7 mm) attaching the MK102 ring lug to the power card mounting plate.
6.
Remove the 2 connectors, one on each end of the DC bus fuse holder.
7.
Remove the 2 nuts (10 mm) on the right side of the power card mounting plate. (Two
nuts that secure the control assembly mounting bracket also secure the left side of the
power card mounting bracket.)
Reinstall in reverse order of this procedure. The ring lug for the wire assembly that connects to
power card connector MK102 attaches to the right mounting stud on the top of the power card
mounting plate. The white wire from the DC bus connects to the left end of the DC bus fuse holder.
The white wire from the power card connector MK105 connects to the right end of the DC bus
fuse holder. Tighten the 10 mm mounting nuts to 4 Nm (35 in-lbs) and the 7 mm nut to 1 Nm (8
in-lbs).
7 D-Frame Sizes Disassembly and Assembly
Instructions
High Power Service Manual for VLT
®
FC Series
Adjustable Frequency Drives
7-4
MG.90.L1.22 - VLT
®
is a registered Danfoss trademark
7
Summary of Contents for VLT HVAC FC 100
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