Omron V680-CA1D User Manual page 29

Use the provided ferrite core for the suppression of noise generation as shown below.
1.
Wire the power supply and ground wires in advance.
2.
Wind the power supply and ground wires together around the ferrite core once so that the ferrite core
will not move as shown below. As a guide, locate the ferrite core within 10 cm of the Controller.
3.
Close and press the ferrite core until it clicks, indicating that the ferrite core is locked.
Installation, Connections, and Wiring
V680-CA1D
Ferrite core (provided)
Section 2
Heat-resistive RFID System
User's Manual
27