Lower Capacitor Bank Assembly; High Frequency Board - Danfoss VLT HVAC Drive FC100 Service Manual

Disassembly/Assembly - Inve...

8.2.5 Lower Capacitor Bank Assembly

1. Disconnect cables from gate drive card
connectors MK100, MK102, MK103, MK104,
MK106, and, if unit has a brake option MK105.
2. Remove six electrical connection nuts (8 mm)
securing capacitor bank assembly. These nuts are
recessed in the gap between the upper and
lower capacitor banks.
3. Remove four retaining nuts (10 mm) securing
capacitor bank assembly.
4. NOTE: Capacitor bank assembly may weigh up to
9 kg (20 lbs). Remove capacitor bank assembly.
Reassembly is done in reverse order.
1
8 8
3
4
6
1 Upper capacitor bank assembly
2 Inverter power card
3 8 mm electrical connection nut (step 2)
4 10 mm retaining nut (step 3)
5 Lower capacitor bank assembly
6 IGBT gate driver card (step 1)
116
High Power Service Manual for Modular F Frame Drives

8.2.6 High Frequency Board

1.
2.
3.
4.
Reassembly is done in reverse order.
2
3
4
5
1
130BX264.10
2
3
®
MG90K202 - VLT is a registered Danfoss trademark
Remove upper capacitor bank assembly in
accordance with instructions.
Disconnect cable from connector MK100 on high
frequency board.
Remove two screws (T25) from high frequency
board.
Remove one nut (8 mm) from high frequency
board standoff and remove board.
130BX258.10
T25 screw (step 3)
High frequency board
8 mm retaining nut (step 4)
1
2
3