Gate Drive Card; Soft Charge Card; Soft Charge Card Assy - Danfoss VLT Series Service Manual

6.5 Gate Drive Card

1. Disconnect cables from connectors on gate drive
card MK102, MK103, MK104, MK106, and, if unit
has extended brake option, MK105, and, for 380-
500 V units with an RFI filter, MK101.
2. Remove gate driver card by removing 6 mounting
screws (T25 Torx) from standoffs.
Reinstall in reverse order of this procedure. Tighten mounting
screws to 20 in-lbs (2.25 Nm).

6.6 Soft Charge Card

1. Remove control card/power card mounting plate
in accordance with procedure.
2. Remove 2 retaining nuts from soft charge card
assembly (10mm).
3. Slide assembly part way out to access cable
connectors on card.
4. Disconnect MK1, MK2, MK3, and MK4.
5. Remove soft charge card assembly.
Reinstall by aligning soft charge card with fastening clips on
the side of the chassis. Reattach connectors. Slide into place
and tighten mounting screws to 35 in-lbs (4 Nm).
MK101 (RFI filter)
MK105 MK102 (U)
brake option
Figure 6-3. Gate Drive Card
Mounting screw
(Step 2)
MK1
Figure 6-4. Soft Charge Card Assy
VLT is a registered Danfoss trademark
MK106
MK103 (V) MK104 (W)
MK2
MK4
MK3
6-3