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Brake unit control devices
Each brake chopper module employs a dedicated control unit (BCU) that contains the
BCON board with basic I/Os and slots for optional modules. A fiber optic link connects
the BCU to the brake chopper module.
Overview of the control connections of the BCU control unit
￭
7
11
6
1
Analog and digital I/O extension modules and
2
fieldbus communication modules can be in-
3
serted into slots 1, 2 and 3.
4
Memory unit
5
Slot 4 for RDCO-0x
6
Terminal blocks.
11
Distributed I/O bus with CIO-02 modules for
cooling fan monitoring and control.
9
8
Operation principle and hardware description 25
4
1
2
3
5
10
7
Control panel.
8
Fiber optic links to power modules (inverter,
supply, brake or converter)
9
Ethernet port. Not in use.
10
Safety option interface. Only in use for the
inverter units.
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