12-Pulse Mpic; Power Card Mounting Plate - Danfoss VLT HVAC Drive FC100 Service Manual

Disassembly/Assembly - Rect...

9.2.3 12-Pulse MPIC

12-Pulse F8/F9 units have a multi-pulse interface card
(MPIC) mounted on the power card mounting plate.
NOTE: MPIC may remain installed if power card mounting
plate is being removed to access soft charge boards.
1. Disconnect cabling from the MPIC: MK100,
MK102, MK104, MK105, MK106, and MK110.
2. Remove the MPIC by removing 4 screws (T25).
3. Insulation sheet behind MPIC can be left in place.
Ensure its is in place for reassembly.
Reinstall in reverse order of this procedure. Tighten
mounting screws to 2.3 Nm (20 in-lbs).
2
1
7
Illustration 9.1 MPIC
1 MK 110
2 MPIC
3 MK106
4 MK105
5 MK104
6 MK102
7 MK101
High Power Service Manual for Modular F Frame Drives
3
4
5
6
®
MG90K202 - VLT is a registered Danfoss trademark

9.2.4 Power Card Mounting Plate

1. Disconnect two fast-on connectors from fuse
block attached to power card mounting plate
flange.
2. Disconnect from power card connectors MK100,
MK103, MK104, MK105, MK106, and MK110.
3. Disconnect three cable connectors (6-pin, 8-pin,
and 12-pin) from power card mounting panel
flange. Cable connectors disconnect from back
side of flange.
4. Remove power card mounting plate by removing
four retaining nuts (8mm) securing plate.
NOTE: At this point soft charge cards are
accessible for changing fuses. Two soft charge
cards are present for units with two inverter
modules, three soft charge cards for units with
three inverter modules.
1
6
1 Power card mounting plate (step 4)
2 Power card (step 2)
3 Cable connectors (step 3)
4 Fuse block (step 1)
5 Power card mounting plate flange
6 Attaching screw (step 4)
2
3
9 9
4
5
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