Danfoss VLT HVAC Drive FC 100 Service Manual page 150

High Power Service Manual for VLT
Adjustable Frequency Drives
5. Remove the six retaining screws (T25) from the SCR/diode modules, terminals 2 and 3
in each module.
6. 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.
4
Figure 7.17: D1/D3 SCR/Diode Module (2 of 3)
1
2
3
4
5
®
FC Series
1
2
3
Bus bar BB4
Retaining nuts (Step 6)
DC input bus assembly BB3 (Step 6)
Retaining screws (Step 5)
SCR/diode module
MG.90.L1.22 - VLT ® is a registered Danfoss trademark
7 D-Frame Sizes Disassembly and Assembly
5
Instructions
7
7-19