Rockwell-automation 150 MNL/SMC DIALOG+/APP-PROD GUIDE Bedienungsanleitung Seite 131

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SMC Dialog Plus Controller Special Application Considerations
5-7
If an isolation contactor is used, it is preferable that the power factor
capacitors be installed ahead of the isolation contactor if at all
possible (see Figure 5.4). In some installations, this may not be
physically possible and the capacitor bank will have to be connected
to the downstream terminals of the contactor. In this case, th
installer must exercise caution and ensure that the air-core inductance
is sufficient to prevent oscillating voltages from interfering with th
proper performance of the SMC Dialog Plus controller. It may be
necessary to add more loops to the coil.
Figure 5.4 Power Factor Capacitors with Isolation Contactor
Power Input
3-Phase
Branch
Protection
Power Factor
Correction Capacitors
SMC Dialog Plus Controller
L1/1
L2/3
L3/5
T1/2
T2/4
T3/6
Motor
Isolation
Contactor
Customer supplied
Overload protection is included as a standard
feature of the SMC Dialog Plus controller.
Seitenansicht 130
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