7-14
VLT is a registered Danfoss trademark
Figure 7-12. IGBT Modules (2 of 4)
Load sharing option
retaining studs
(Step 8)
Positive (+) output bus bar
BB42 (Step 9)
Positive (+) output bus
bar connecting screw
(Step 9)
Negative (-) output bus bar
BB42 (Step 9)
Negative (-) output bus
bar connecting screw
(Step 9)
SCR and Diode
input bus bar BB41
(Step 10)
8.
If unit is not equipped with load sharing option,
proceed to step 9. If unit is equipped with load
sharing, load share minus (-) bus bar must be
removed as follows.
a. Remove 2 retaining nuts (13 mm) connecting
load share bus bar to the SCR output bus bar.
b. Remove retaining nut (17 mm) connecting
load share bus bar to load share terminal on
opposite end of bus bar (not shown).
c. Remove load share bus bar.
9.
Remove both positive (+) and negative (-) SCR
output bus bars by removing 6 connection screws
(T50). There are 3 screws per bus bar.
10. Remove three SCR and Diode input bus bars by
removing 6 connection screws (T50). There are 2
screws per bus bar.
CONTINUED NEXT PAGE
Summary of Contents for VLT series
Page 1: ...MOTION CONTROLS Service Manual VLT 4152 4652 VLT 5122 5602 VLT 6152 6652 VLT 8152 8652...
Page 8: ......
Page 20: ......
Page 32: ......
Page 41: ...2 9 VLT is a registered Danfoss trademark Figure 2 7 Inverter Section...
Page 58: ......
Page 96: ......
Page 152: ......