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Connecting the DC and resistor cables
WARNING!
Never connect the output terminals of the brake chopper together. It short-circuits
the chopper and will damage it.
■
Connection diagram
Brake chopper module and resistor in the same
cubicle
Brake chopper module and resistors in separate
cubicles
UDC+
UDC-
R+
R-
R+
R-
+
-
DC link
NBRW-669
Resistor assembly
*
*
+
-
UDC+
UDC-
R+
R-
R+
R-
DC link
NBRW-669
Resistor assembly
*
*
* The chopper and resistor housings can be grounded to the frame through the mounting screws if the galvanic
connection to PE (protective earth) is good enough.
46 Electrical installation
Summary of Contents for ACS880-604LC
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 604LC 1 phase brake units as modules Hardware manual ...
Page 2: ......
Page 4: ......
Page 12: ...12 ...
Page 20: ...20 ...
Page 33: ...Overview of kits Mechanical installation 33 10 ...
Page 34: ...Stage 1 Installation of common parts 34 Mechanical installation ...
Page 35: ...Stage 2 Installation of mounting plate Mechanical installation 35 10 ...
Page 36: ...Stage 3 Installation of cooling components 36 Mechanical installation ...
Page 37: ...Stage 4 Installation of brake module and attenuator Mechanical installation 37 10 ...
Page 40: ...40 ...
Page 58: ...58 ...
Page 64: ...64 ...
Page 82: ...82 ...
Page 84: ...Brake chopper module NBRW 669 84 Dimension drawings ...
Page 85: ...Attenuator Dimension drawings 85 ...
Page 86: ...Brake resistor 234 300 1320 Ø 7 345 R R 1270 86 Dimension drawings ...
Page 88: ...88 ...
Page 102: ......