Danfoss VLT FC Series, Руководство по обслуживанию

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13.2.10 Split Input Plate with Options
CAUTION
COMPONENT WEIGHT
The upper and lower input plates with attached options
can weigh up to 20 kg (44 lb), depending on the config-
uration. To avoid injury, lift the input plates only with
assistance.
Standard E1h–E4h drives in IP00/IP20 enclosures include a
single input plate. For drives with added options, the input
plate is split into an upper input plate and lower input
plate. These options include:
•
AC fuses
•
Disconnect
•
RFI filter
To remove the split input plate and related options, use
the following steps based on the configuration. Refer to
Illustration 13.9 . To remove or reinstall the single input
plate with attached busbars, see chapter 13.2.9 Input Plate
with Busbars .
Lower input plate with disconnect and AC fuse option
1. Remove 3 nuts (17 mm) and bolts, 1 from each
input connection (L1, L2, L3) at the bottom of the
disconnect.
2. Remove 3 nuts (17 mm) and bolts, 1 from the
bottom of each fuse.
3. Remove 3 nuts (17 mm), 1 from the top of each
fuse. Lift the fuses from the drive.
4. Remove 2 screws (T25) from the bottom of the
lower input plate.
5. Remove 5–7 nuts (8 mm) from the lower input
plate edge. The number of fasteners in the input
plate varies with enclosure size.
6. Lift the lower input plate and attached
disconnect from the drive.
Upper input plate with RFI filter option
1. Remove the lower input plate.
2. Unplug in-line connector attaching the mixing
fan cables to the fans on the back of the input
plate. E1h/E3h drives have 2 fans; E2h/E4h drives
have 1 fan.
3. Unplug 2 RFI filter cable connectors on the right
side of the RFI filter.
4. Release the cables from the cable retaining clips
on the input plate.
5. Remove 6 nuts (13 mm), 2 from each AC input
busbar at the top of the RFI filter.
6. Remove 6–8 nuts (8 mm) from the edges of the
upper input plate. The number of fasteners in the
input plate varies with enclosure size.
7. Lift the upper input plate with attached RFI filter
from the drive.
Reassembly
Reinstall parts in the reverse order of these procedures.
NOTICE
UNIQUE TORQUE VALUES
Tighten nuts (8 mm), which attach the input plate to the
mounting rail, to 3.91 Nm (34.6 lb-in). Tighten all other
fasteners according to
chapter 14.1 Fastener Torque
Ratings .
E1h–E4h Drive Disassembly a... Service Guide
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