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16 Operation principle and hardware description
Layout
The components of the brake chopper module are shown below.
1
2
3
2
1
Fastening points on back plate (two at the top, two at the bottom)
2
Front cover fastening screws
3
Front cover
Chopper control board (NBRC) with control terminals. See section
4
connections (page
5
Voltage selection jumper, see
6
PE (protective earth) clamp
7
Grounding clamp
8
Clamp for drive cable
9
Clamp for resistor cable
X1
Enable input terminal block, see section
1
2
X1
2
18).
Selecting the voltage (page
Overview of power and control connections (page
4
UDC+ R+
UDC-
6
8
Overview of power and control
44).
5
R-
7
9
18).
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