Appendix 2 Common EMC Problems and Solutions
‑152‑
Figure 6‑1 Magnetic ring on the input side
6.2 Harmonic Suppression
To suppress harmonics and improve the power factor to allow the drive to fulfill the
standards, install an AC input reactor on the input side of the drive. For the reactor
model and installation mode, see “
2.3.2 Instructions for Installing the AC Input
Reactor
”
on page 52
.
6.3 Control Circuit Interference
6.3.1 High-speed Pulse Interference
Take the measures listed in the following table to suppress interference.
No. Measure
1
Used shielded twisted pair cables with both ends of the cable grounded (see
“
3.8.1 Wiring of I/O Signal Cables
”
on page 108
).
2
Connect the motor enclosure to the PE terminal of the drive.
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