Operating the Drive
Page 7-20 890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
8
9
10
11
B
C
D
1
2
3
4
5
6
7
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 7.1.
Motor Power
kW HP
Choke Inductance RMS Current Rating SSD Part Number
0.75 1
1.1 1.5
1.5 2
2.2 3
2mH 7.5A CO055931
4.0 5
5.5 7.5
7.5 10
0.9mH 22A CO057283
11 15
15 20
0.45mH 33A CO057284
18 35 0.3mH 44A CO057285
22 30
30 40
50μH
70A CO055193
37 50
50μH
99A CO055253
45 60
50μH
99A CO055253
55 75
50μH
243A CO057960
75 100
50μH
360A CO387886
90 120
50μH
360A CO387886
110 150
50μH
360A CO387886
Table 7.1 Recommended Choke Values for Cables up to 300 Metres
To Next Page
Loading...
