Igbt Module - Danfoss VLT HVAC Drive FC100 Service Manual

Disassembly/Assembly - Inve...
11. Remove brake IGBT by removing four mounting
screws attaching each brake IGBT to back panel.
Reassembly
1. Replace IGBT brake module in accordance with
instructions included with replacement module.
2. Reassemble in reverse order of this procedure.
NOTE
The special torque requirements on the instructions
included with the replacement module.

8.2.10 IGBT Module

1. Remove both upper and lower capacitor bank
assemblies in accordance with instructions.
2. Remove high frequency board in accordance with
instructions.
3. Remove three current sensors in accordance with
instructions.
4. If optional brake IGBT is present, remove bus bar
attached to left side of panel and to left most
brake IGBT by removing two nuts at each end of
bus bar. (See Brake IGBT Module.) Otherwise go to
step 6.
5. If optional brake IGBT is present, remove the two
screws (T30) connecting the IGBT-Ind bus bar
assembly to each brake IGBT module.
6. Remove nine snubber capacitors by removing
two screws (T30) for from each capacitor.
7. Remove the three IGBT capacitor bus bars freed
by removing screws in step 6.
8. Remove four retaining nuts (13mm) connecting
IGBT-Ind bus bar assembly to two DC bus bars
from inductor.
9. Remove IGBT-Ind bus bar assembly.
10. Remove IGBT module by removing 8 retaining
screws (T25) mounting IGBTmodule to back
panel.
Reassembly
1. Replace IGBT brake module in accordance with
instructions included with replacement module.
2. Reassemble in reverse order of this procedure.
3. NOTE: Connect temperature sensor cable from
gate drive card MK100 to center IGBT module
connector MK103.
NOTE
The special torque requirements on the instructions
included with the replacement module.
High Power Service Manual for Modular F Frame Drives
130BX259.10
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MG90K202 - VLT is a registered Danfoss trademark
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IGBT module (step 10)
High frequency board (step 2)
IGBT-Ind bus bar assembly (steps 5 and 9)
Snubber capacitor (step 6)
IGBT capacitor bus bar (step 7)
Current sensor (step 3)
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