890CS & 890CD Common Bus Units
4-2
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
8
9
10
11
A
B
C
D
1
2
3
5
6
7
E
Step 1: Mechanical Installation
Install the 890 units and associated equipment into the cubicle. The diagram shows a typical layout using
Star Point earthing for EMC compliance. Refer to Appendix C for further information.
KEY
A
Analog Clean Earth
B
Back plate
C
Cubicle
E
Dirty Earth
F
Filter (optional)
G
Star Point Earth
H
Brake Resistor
(optional)
M
Metal Work Earth
P
AC Fuse or
circuit breaker
R
AC Line Reactor
(mandatory)
S
Signal/Control
Screen Earth
T
24V Power Supply
V
DC Fuse
W
3 Phase
AC Contactor
Figure 4.1
Mechanical Installation Diagram
P
F
C
H
G
890CS
R
E
A
M
S
B
24V
+
-
T
890CD
890CD
V
V
W