ABB ACS880-604LC, Hardware Manual

Page: 16 / 104

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