The Control Unit; Contents Of This Chapter; General - ABB ACS880-207 Hardware Manual

The control unit

Contents of this chapter

This chapter
• describes the connections of the control unit
• contains the specifications of the inputs and outputs of the control unit.

General

The BCU-x2 control unit is used with frame size R8i and multiples. The BCU-x2 consists of
a BCON-12 control board (and a BIOC-01 I/O connector board and power supply board)
built in a metal housing. The control unit is connected to the IGBT supply module(s) by fiber
optic cables.
In this manual, the name "BCU-x2" represents the control unit types BCU-02, BCU-12 and
BCU-22. These have a different number of power module connections (2, 7 and 12
respectively) but are otherwise similar.
The control unit 139
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