890CS & 890CD Common Bus Units
4-16
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
Refer to the 890 Installation Kit for earth/ground fixing details on the 890CS. Fit the appropriate
parts.
Caution
The 890CS Common Bus Supply is factory-fitted with a safety bung to
terminals DC+ and DC- which maintains the IP20 rating.
Remove this bung. These terminals are used.
Each unit must be
permanently earthed
according to EN 50178.
For permanent earthing:
A cross-section conductor of at least 10mm² is required. This can be achieved either by using a
single conductor (PE) or by laying a second conductor though separate terminals (PE2 where
provided) and electrically in parallel.