Input Power Supply Filtering; Other Electromagnetic Interference Suppression Suggestions - Servotronix CDHD2S User Manual

驱动器设置
Motor and feedback shielded cables should be placed as close to the drive as possible. Connect
this exposed cable shield to the rear panel using non-insulated metal cable clamp or connector
clamp.
It is recommended to use shielded busbars for star shield connection

4.6.4 Input power supply filtering

CDHD2S electronic system components require EMI AC line filtering in the input power lines
to meet CE requirements for industrial environments.
Pay attention to the calibration system size. The filter type is determined based on the rated
voltage and current values of the system and the phase of the input line (1 phase or 3 phase). One
input line filter is available for multi-axis control application.
For the recommended line filter manufacturer name and part number for the CDHD2S, please
refer to the Line Filters. The use of the input power filter should follow the following guidelines:
The filter keeps the wires in and out of the power filter separate.
⚫
The filter must be mounted on the same panel as the drive.
⚫
The filter must be installed as close as possible to the drive to prevent noise from
⚫
capacitive coupling into other signal lines and cables.
When installing the filter to the panel, remove any paint or material coating. If possible,
⚫
use unpainted metal backplane.
The filter is equipped with a ground terminal and must be grounded.
⚫
Filters can produce high leakage currents. The filter must be grounded before
⚫
connecting the power supply.
The filter should not be touched for 10 seconds after power is removed.
⚫

4.6.5 Other electromagnetic interference suppression suggestions

Power and control cables should be routed separately. The recommended distance is at least
200mm to improve anti-interference. If the input power supply and wires need to cross, make sure
they cross at a 90° angle.
Feedback lines may not be extended as this would cause shielding interruption and may
interfere with signal processing.
Connect the cable normally. If you need to tap the cable, please use a connector with a metal
back shell. Make sure that the two shells are connected along the periphery of the
sheath. No part of the wiring should be unshielded. Never tap cables through the terminal strip.
For differential input of analog signals, use a twisted pair shielded signal cable, both ends
connecting shield.
—52—