Power Card - Danfoss VLT FC Series Service Manual

E1h–E4h Drive Disassembly a...

13.2.4 Power Card

To remove or reinstall the power card, use the following steps. Refer to Illustration 13.3.
NOTICE
PARTS REUSE
A new current scaling card is not included with replacement power cards. Retain the current scaling card so it can be
reinstalled on the new power card.
Disassembly
1. Remove the control card mounting plate. Refer to
chapter 13.2.2 Control Card and Control Card
Mounting Plate.
2. Unplug the cables from the following power card
connectors:
2a MK101
2b MK103
2c MK105
2d MK501
2e MK502
2f MK902
2g Any additional wiring at MK106 and
MK500
3. Remove 5 screws (T20) from the power card.
4. Remove 2 standoffs (7 mm).
5. Remove the power card from the 4 plastic
standoffs, pinching the standoffs to compress
them.
6. Remove the current scaling card from the power
card, pinching the tip of the plastic standoff. To
avoid bending the card, lift it parallel to the
power card.
MG94A502
Service Guide
NOTICE
UNIQUE TORQUE VALUES
Tighten screws (T20) to the non-standard torque value
specified in the following steps. Tighten all other
fasteners according to chapter 14.1 Fastener Torque
Ratings.
Reassembly
1.
2.
3.
4.
5.
6.
Danfoss A/S © 02/2019 All rights reserved.
Insert the current scaling card into the standoff
on the new power card. Press the scaling card
onto the current scaling card fastener (MK100).
Position the power card on the mounting plate,
and press it on to the 4 plastic standoffs.
Secure 2 metal standoffs (7 mm).
Secure 5 screws (T20) in the power card. Torque
to 2.27 Nm (20.1 lb-in).
Plug the cables into the following power card
connectors:
5a MK101
5b MK103
5c MK105
5d MK501
5e MK502
5f MK902
5g Any additional wiring at MK106 and
MK500
Route the cables through the cable retaining
clips.
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