Operating the Drive
Page 7-42 890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
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9
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11
B
C
D
1
2
3
4
5
6
7
E
Drive Power
(kW/Hp)
230V Units
Nominal
400V Units
Nominal
500V Units
Nominal
Size
μF
Size
μF
Size
μF
90/125 F 5600 F 5600
-/150 US/Canada only F 5600
110/150 G 6600
132/200 G 9900
160/250 G 13500
180/300 G 13500
200/300 H 14850
220/350 H 14850
250/400 H 20250
280/450 H 20250
315/500 J 19800
Simply sum the DC Link capacitance for all the drives on the common DC Link and select the appropriate
pre-charge network.
For example: a system comprising 5 x 37kW, 400V Frame E drives would have a total DC Link
capacitance of:
FFC
Total
000,1830005
×=
This is less than 19,500μF and thus a 56Ω, 200W (CZ463068) resistor will be adequate.
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