Danfoss VLT series, Service Manual

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6-5
VLT is a registered Danfoss trademark
6.7.3 Single Capacitor Bank D1 Units
1. Remove control card cassette in accordance with
instructions.
2. Remove 2 capacitor bank retaining nuts (10mm)
from DC bus bars. A minimum 4 in. (100mm)
extension is required.
3. Disconnect MK102, MK103, MK104, and MK106
from gate drive card. Also remove MK105, for
units with extended brake, and MK101 for units
with RFI filter. Note that IGBT gate drive card can
remain attached to cap bank cover plate.
4. Remove 4 retaining nuts (10mm) from cap bank
cover plate and remove plate.
5. Note that weight of cap bank is approx. 20 lbs. (9
kg). Remove cap bank by pulling free from
mounting studs.
Reinstall in reverse order of this procedure. Tighten mounting
screws to 35 in-lbs (4 Nm).
Figure 6-6. D1 Single Capacitor Bank Assembly
Retaining nuts
(Step 2)
Gate drive card
(Step 3)
Retaining nuts
(Step 4)