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Operating the Drive
8-24
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
4
5
6
E
Follow the advice given in Appendix E: "Technical Specifications" - Electrical Ratings: : 890CS -
Calculation.
IMPORTANT
When paralleling 890CS units, derate the combination 890CS unit by 5%. For example, the 890CS
Frame D has a rated current of 162A AC and should be derated to 154A AC, i.e. two paralleled units
will have a combined rating of 308A AC.
♦
All 890CS units require the customer 24VDC auxiliary supply at terminals X01/01 and X01/04 (not
shown in the diagram).
♦
All 890CS units require an Enable signal at terminal X02/03.
♦
All 890CS units on the system must be identical. See the Rating Label on the 890CS.
♦
All 890CS units on the system must be fitted with the (identical) recommended line choke.