28 Operation principle and hardware description
Overview of the control connections on the BCU control unit
BCU control unit is used with frame size R8i IGBT supply module. The diagram shows the
control connections and interfaces of the BCU control unit.
7
8
6
No.
Description
1
Analog and digital I/O extension modules
2
and fieldbus communication modules can be
3
inserted into slots 1, 2 and 3.
4
Memory unit
5
Slot 4 for RDCO-0x
6
Terminal blocks. See chapter
on page 131.
9
The control unit
4
1
2
3
5
10
No.
Description
7
Control panel or PC
8
Fiber optic links to the supply modules
9
Ethernet interface
10
Not in use in supply units