8.
If the unit is not equipped with the load sharing option, proceed to step 9. If the unit is
equipped with load sharing, the load share minus (-) bus bar must be removed as follows.
8a. Remove the 2 retaining nuts (13 mm) connecting the load share bus bar to
the SCR output bus bar.
8b. Remove the retaining nut (17 mm) connecting the load share bus bar to the
load share terminal on the opposite end of the bus bar (not shown).
8c. Remove the load share bus bar.
9.
Remove both positive (+) and negative (-) SCR output bus bars by removing the 6 con-
nection screws (T50). There are 3 screws per bus bar.
10.
Remove the three SCR and diode input bus bars by removing the 6 connection screws
(T50). There are 2 screws per bus bar.
CONTINUED NEXT PAGE
130BX129.10
1
2
3
4
5
6
Figure 8.9: SCR and Diode Modules (2 of 3)
1
Load sharing option retaining stud (Step 8)
4
Positive (+) output bus bar connecting screw (Step 9)
2
SCR and diode input bus bar BB41 (Step 10)
5
Negative (-) output bus bar BB42 (Step 9)
3
Positive (+) output bus bar BB42 (Step 9)
6
Negative (-) output bus bar connecting screw (Step 9)
High Power Service Manual for VLT
®
FC Series
Adjustable Frequency Drives
8 E-Frame Sizes Disassembly and Assembly
Instructions
MG.90.L1.22 - VLT
®
is a registered Danfoss trademark
8-11
8
Summary of Contents for VLT HVAC FC 100
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