Delta ASDA-A3 Series User Manual page 622

ASDA-A3
 Anti-interference methods
In the signal transmission process, if there is interference, it may result in signal distortion.
Therefore, it is important to eliminate interference. The elimination methods are as follows:
Add a terminal resistor.
1.
Check if the servo drive is installed in a high magnetic field environment.
2.
If so, keep it as far away as possible.
Use a shielded twisted-pair cable for the transmission line.
3.
When wiring, isolate the high voltage power cable from the signal line.
4.
Use a magnetic ring at the power input. For its usage, refer to Section 2.6.
5.
Add X capacitor and Y capacitor at the power input and use IEC 60384-14 certified
6.
capacitors.
MODBUS Communication
9
9-17