8-45
Operating the Drive
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
Drive Power
(kW/Hp)
230V Units
Nominal
400V Units
Nominal
500V Units
Nominal
Size
µ
F
Size
µ
F
Size
µ
F
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:
F
F
C
Total
µ
µ
000
,
18
3000
5
=
×
=
This is less than 19,500
µ
F and thus a 56
Ω
, 200W (CZ463068) resistor will be adequate.