Danfoss VLT HVAC Drive FC 100 Service Manual page 142

High Power Service Manual for VLT
Adjustable Frequency Drives
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
Figure 7.9: D1/D3 Soft Charge Resistor (2 of 3)
380–480/500V: Clear wire leads.
1
2
3
4
®
FC Series
3
2
1
Retaining screws (Step 4)
DC input bus assembly BB3
Retaining nuts (Step 5)
Soft charge resistor
MG.90.L1.22 - VLT ® is a registered Danfoss trademark
7 D-Frame Sizes Disassembly and Assembly
4
525–690 V: Black wire leads.
Instructions
7
7-11