Control Concepts FUSION Series - APPENDIX A: Changing from Inside Delta to Delta or 3-Wire Wye Load

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Compact FUSION Installation Manual Revision 3.50.2

Changing the internal wiring from an Inside Delta to a

Delta or 3 Wire Wye load can easily be done in the field.

First the line power and the control power must be OFF.

Use a screw driver to remove all of the lids. There are

three boards connected together, a Control board and

two Gate Driver boards. It is important to not remove the

flat flex (white) cables.

STEP

Gently remove the Inside Delta wire harness from the

top of Gate Driver boards by simply pulling up on the

connectors. Do not pull on wires. Label as inside delta

and save the wire harness for future use. Connectors to

be removed are marked with green arrows.

The silk screen next to the connectors will read P9 (2

pin), P11 (3 pin), P8 (3 pin) and P10 (3 pin). On one of

the boards P8 and P10 will not be populated.

STEP

Place the Delta or 3 Wire Wye wire harness on the

connectors. Match the 2 pin connectors of the wire

harness to the 2 pin connectors of the Gate Driver board.

Similarly match the 3 pin connectors together. To wire

the load, refer to the Three Phase 3 Leg section of the

manual.

APPENDIX A:

Changing from Inside Delta

to Delta or 3-Wire Wye Load

NOTE: Delta loads and 3 Wire Wye loads use the same wire harness.

After changing wire harness, change the load type in the FUSION

Control Panel software.

STEP