Delta C200 Series User Manual page 6

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RFI Jumper
RFI Jumper: The AC motor drive may emit the electrical noise. The RFI jumper is used to suppress the
interference (Radio Frequency Interference) on the power line.
Frame A0~A
Loosen the screws and remove the MOV-PLATE. Fasten the screws back to the original position after
MOV-PLATE is removed.
Frame A0
Frame A
Main power isolated from earth:
If the AC motor drive is supplied from an isolated power (IT power), the RFI jumper must be cut off. Then
the RFI capacities (filter capacitors) will be disconnected from ground to prevent circuit damage
(according to IEC 61800-3) and reduce earth leakage current.
CAUTION!
1. When power is applied to the AC motor drive, do not cut off the RFI jumper.
2. Make sure main power is switched off before cutting the RFI jumper.
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Screw Torque: 8
~10kg-cm(6.9-8.7 lb -in.)
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Chapter 1 Introduction|C200 Series
1-3
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sales@deltaacdrives.com