7.2.1 Control Card and Control Card
Mounting Plate
1.
Open the front panel door.
2.
Unplug the LCP ribbon cable from the control
card.
CAUTION
Line Power (Primary Side) Current
Use a shorting connector on the secondary side of
customer-supplied external current transformers (CT)
whenever current is present on line power (primary side)
and the AFC card is NOT wired to the external CT
terminals. When performing service on an active filter, use
a shorting connector on the secondary side of external CTs
for extra safety. Failure to short out the secondary side of
current transformers when current is present on the
primary side and the AFC card is NOT connected could
damage the current transformer.
3.
Remove capacitors CT cable from terminal MK103
of AAF card.
4.
Remove the external CT cable from terminal
MK101 or MK108 in the AAF card.
5.
Remove ribbon cables from FC100 and MK100 on
the AAF card.
6.
Remove the control card terminal blocks.
7.
Remove the 4 screws (T-20) securing the control
card mounting plate to the control assembly
support bracket.
8.
Remove the control card mounting plate.
Reinstall in reverse order of this procedure. See
for torque tightening values.
7.2.2 Control Assembly Support Bracket
1.
Remove the control card mounting plate in
accordance with the procedure.
2.
Remove the 5 mounting nuts (0.39 in [10 mm]).
3.
Remove the control assembly support bracket.
Reinstall in the reverse order of this procedure. See
for torque tightening values.
7.2.3 Active Filter Card
130BB950.10
1
3
4
5
6
2
Figure 7.2 Advanced Active Filter Card
1 MK101
4
MK107
2 MK108
5
MK100
3 MK103
6
FK100
Table 7.2
CAUTION
Line Power (Primary Side) Current
Use a shorting connector on the secondary side of
customer-supplied external current transformers (CT)
whenever current is present on line power (primary side)
and the AFC card is NOT wired to the external CT
terminals. When performing service on an active filter, use
a shorting connector on the secondary side of external CTs
for extra safety. Failure to short out the secondary side of
current transformers when current is present on the
primary side and the AFC card is NOT connected could
damage the current transformer.
1.
Note if cable is connected to MK101 (5A) or
MK108 (1A) for reassembly.
2.
Remove plugs MK100, MK103, MK107, FK100, and
MK101 (5A) or MK108 (1A) from AAF card.
3.
Remove AAF card by removing the 4 mounting
screws (T-10).
Reinstall in the reverse order of this procedure. See
for torque tightening values.
D-Frame Sizes Disassembly a...
VLT Advanced Active Filter AAF006 D and E Frames Service Manual
MG90Z122 - VLT
®
is a registered Danfoss trademark
7-3
7
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