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8.2.3 Power Card
1.
Remove the control assembly support bracket in accordance with procedure.
2.
Unplug power card connectors MK100, MK102, MK105, MK106, MK107 and MK109.
3.
If customer connections are present, unplug connectors FK102, FK103, and MK112.
4.
Remove the 7 mounting screws (T25 Torx) from the power card.
5.
Remove the power card from the plastic standoff at the top right of the power card.
6.
Remove the current scaling card from the power card by pushing in the retaining clips
on the standoffs. KEEP THIS SCALING CARD FOR FUTURE REINSTALLATION OF ANY
REPLACEMENT POWER CARD. The scaling card controls signals operating with this spe-
cific adjustable frequency drive. The scaling card is not part of the replacement power
card.
Reinstall in reverse order of this procedure. When installing the power card, ensure that the in-
sulator sheet is installed behind the power card. Tighten the mounting screws to 2.3 Nm (20 in-
lbs).
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
130BX172.10
Figure 8.2: Power Card, and Mounting Plate
380–480/500V: Yellow tape on the main SMPS
transformer in the upper right corner.
525–690V: White tape on the main SMPS
transformer in the upper right corner.
1
Power card PCA3
9
MK106
2
Mounting plate
10
MK100
3
MK110
11
MK109
4
MK102
12
FK102
5
MK104
13
MK112 terminals 4,5,6
6
MK105
14
MK112 terminals 1,2,3
7
MK107
15
Current scaling card PCA4
8
FK103
16
Current scaling card standoff
High Power Service Manual for VLT
®
FC Series
Adjustable Frequency Drives
8 E-Frame Sizes Disassembly and Assembly
Instructions
MG.90.L1.22 - VLT
®
is a registered Danfoss trademark
8-3
8
Содержание VLT HVAC FC 100
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