Parker AC30 series, User Manual

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5-4
Associated Equipment
AC30 series Variable Speed Inverter
AC Motor Chokes
The maximum rate of rise of Volts (dv/dt) present on the motor terminals of the inverter, can be as high as 10,000V/

s. This can be
reduced by adding a motor choke in series with the motor.
Installations with long cable runs may suffer from nuisance overcurrent trips, refer to Appendix C Compliance - Cabling Requirements for
maximum cable lengths. An output choke may be fitted in the inverter output to limit parasitic capacitive current to earth. Screened cable
has a higher parasitic capacitance to earth and may cause problems in shorter runs. Contact Parker for recommended choke values.
Motor Power (kW) Choke Inductance RMS Current Rating Parker Part No.
0.75
1.1
1.5 2mH 7.5A CO055931
2.2
4.0
5.5 0.9mH 22A CO057283
7.5
11 0.45mH 33A CO057284
15
18 0.3mH 44A CO057285
22 50µH 70A CO055193
30
37 50µH 99A CO055253
45 50µH 99A CO055253
55 50µH 243A CO057960
75 50µH 360A CO387886
90
Contact Parker Hannifin Manufacturing Limited for further information 110
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