4.
Remove the six retaining screws (T25) from the SCR/diode modules, terminals 2 and 3
in each module.
5.
Remove the 4 (10 mm) retaining nuts from the DC inductor input bus bars and the 4
retaining nuts (not shown) from the side mounted bus bars. (Side mounted bus bars are
only present on units with load sharing.) Remove the DC input bus assembly.
CONTINUED ON NEXT PAGE
130BX85.10
1
2
3
4
Figure 7.9: D1/D3 Soft Charge Resistor (2 of 3)
380–480/500V: Clear wire leads.
525–690 V: Black wire leads.
1
Retaining screws (Step 4)
2
DC input bus assembly BB3
3
Retaining nuts (Step 5)
4
Soft charge resistor
High Power Service Manual for VLT
®
FC Series
Adjustable Frequency Drives
7 D-Frame Sizes Disassembly and Assembly
Instructions
MG.90.L1.22 - VLT
®
is a registered Danfoss trademark
7-11
7
Summary of Contents for VLT HVAC FC 100
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