Parker ac890 - Page 219

8-20
Operating the Drive
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
8
9
10
11
A
B
C
D
1
2
3
4
5
6
E
Using Motor Chokes
Installations with motor cable runs in excess of 50m may suffer from nuisance overcurrent trips. This is
due to the capacitance of the cable causing current spikes to be drawn from the drive output. A choke may
be fitted in the drive output which limits the capacitive current. Screened cable has a higher capacitance
and may cause problems in shorter runs. The recommended choke values are shown in Table 8.1.
Motor Power
Choke Inductance
RMS Current Rating
SSD Part Number
kW
HP
0.75
1
2mH 7.5A CO055931
1.1
1.5
1.5
2
2.2
3
4.0
5
0.9mH 22A CO057283
5.5
7.5
7.5
10
11
15
0.45mH 33A CO057284
15
20
18
35
0.3mH
44A
CO057285
22
30
50µH
70A CO055193
30
40
37
50
50µH
99A
CO055253
45
60
50µH
99A
CO055253
55
75
50µH
243A
CO057960
75
100
50
µ
H
360A
CO387886
90
120
50µH
360A
CO387886
110
150
50µH
360A
CO387886
Table 8.1 Recommended Choke Values for Cables up to 300 Metres