Mechanical installation of pre-assembled units (ACS800-04/U4)
44
View of output busbar connections of frame size R8 (DC and brake busbars included)
User connections of Prevention of Unexpected Start (+Q950)
See pages 72 and 97.
1
M10x20
M10x25
M10x25
M10
2
2
2
2
2
2
2
2
2
2
Tightening torque
M10: 30...44 Nm (22...32 lbf ft)
M12: 50...75 Nm (37...55 lbf ft)
2 pcs
Plain washer with
electroplated zinc coating
and passivation
Spring washer with
mechanically sprayed zinc
coating
Nut
M12x35
Tightened at the factory
2
2
W
2
V
2
U
2
R
-
R
+
U
D
C
+
U
D
C
-
WARNING! Fasten the output busbars to the insulating supports with M10x20
screws when no cable lug terminal is connected, but with M10x25 screws when a
cable lug terminal is connected as well. Screwing an M10x25 screw without a
cable lug terminal through the busbar into the insulating support will break the
insulating support.