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Top Level Module Removal In...
7.2.6 Inverter Module
1.
Remove safety covers from front of inverter
module by removing attaching screws.
2.
If present, remove two (optional) brake bus bars
by removing four screws (M8), one on each end
of both bus bars.
3.
Remove three output motor bus bars by
removing six screws (M8), one on each end of
each bus bars.
4.
Disconnect ribbon cable from top of inverter
module.
5.
Unplug connectors (two or three, depending
upon unit) from top of inverter module.
NOTE: For reinstallation, note that each connector
is a different size.
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High Power Service Manual for Modular F Frame Drives
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DC link inductor
Fan transformer
(-)DC bus bar
(+)DC bus bar
Mounting bracket (Step 7)
DC Fuse (Step 6)
Panel connectors (Steps 4 and 5)
Inverter module
MG90K202 - VLT
6.
Remove DC bus bars from top of both fuses by
removing bolt (8 mm) at top of fuse. (Fuse may
remain connected to inverter module.)
NOTE: Four eye bolts and washers are stored at
left bottom side or inverter cabinet for use in
lifting inverter. If desired, attach bolts to holes
provided at top of inverter module. Module
weighs approx. 136 kg/300 lbs.
7.
Remove 2 nuts (M6) from bracket at back of
inverter securing module to cabinet.
8.
Provide sufficient mechanical support to
withstand weight of inverter module. Withdraw
inverter from cabinet.
Reinstall inverter module in reverse order of these
instructions.
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®
is a registered Danfoss trademark
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Module heatsink fan
Fan door cover
(Optional) brake output bus bar (Step 2)
Motor output bus bar (Step 3)
SMPS fuse and fan fuse
Control card
MDCIC board
Top cover plate
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