Power Card Mixing Fan - Danfoss VLT FC Series Service Manual

E1h–E4h Drive Disassembly a...

13.2.12 Power Card Mixing Fan

E2h/E4h drives have 1 mixing fan on the input plate, and 1
mixing fan below the power card. To remove or reinstall
the power card mixing fan, use the following steps. Refer
to Illustration 13.11.
To remove or reinstall the input plate mixing fan, see
chapter 13.2.11 Input Plate Mixing Fan.
Disassembly
1. Remove the input plate. Refer to
chapter 13.2.9 Input Plate with Busbars and
chapter 13.2.10 Split Input Plate with Options.
2. Unplug the in-line connector attaching the
mixing fan cable.
3. Remove 1 screw (T25) from the fan cage, and lift
the fan cage from the drive.
4. Remove 2 screws (T20) from opposite corners of
the mixing fan.
5. Feed the cable through the fan cable access hole.
6. Remove the mixing fan from the fan cage.
MG94A502
Service Guide
Reassembly
Tighten fasteners according to chapter 14.1 Fastener Torque
Ratings.
1.
2.
3.
4.
5.
6.
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Place the mixing fan inside the fan cage with the
airflow arrow pointing upward toward the power
card.
Feed the mixing fan cable through the cable
access hole to the outside of the fan cage.
Secure 2 screws (T20) in opposite corners of the
mixing fan.
Position the fan cage in the drive, and secure 1
screw (T25).
Connect the mixing fan cable in-line connector.
Replace the input plate. Refer to
chapter 13.2.9 Input Plate with Busbars and
chapter 13.2.10 Split Input Plate with Options.
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