Danfoss VLT Series Service Manual page 137

11. Remove 6 retaining screws (T30) connecting each
IGBT module output to IGBT output bus bars.
12. Remove retaining nut (17 mm) connecting IGBT
output bus bar to IGBT over-fan bus bar. Note
that there is one for each of three phases.
13. Remove retaining nut (17 mm) or T50 Torx screw,
depending on unit type, connecting IGBT over-fan
bus bar to current sensor bus bar.
Retaining screw
(Step 11)
Retaining nut
(Step 14)
Output bus bar
Retaining nut
(Step 14)
Retaining nut
(Step 12)
Over-fan bus bar
Retaining nut
(Step 13)
14. Remove 3 retaining nuts (17 mm) at top and one
CONTINUED NEXT PAGE
Figure 7-12. IGBT Modules (3 of 4)
retaining nut (8 mm) at bottom attaching IGBT
output bus bar to standoffs. Remove IGBT output
bus bar.
VLT is a registered Danfoss trademark
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