APPENDICES
App
- 45
Appendix 12 EMC AND LOW VOLTAGE DIRECTIVE
Appendix 12.2 Requirements for Conformance to Low Voltage Directive
(3) Noise filter (power line filter)
Noise filter is effective for reducing conducted noise in the 10MHz or less frequency.
(Use of a noise filter can suppress noise.)
The installation precautions are described below.
• Do not bundle the cables on the input side and output side of the noise filter. If
bundled, the output side noise will be induced into the filtered cable on the input
side.
• Ground the ground terminal of the noise filter to the ground point of the control
panel using as short wiring as possible (approximately 10cm).
Appendix 12.2 Requirements for Conformance to Low Voltage Directive
The CC-Link IE Controller Network board is out of the requirement for conformance to the
Low Voltage Directive, since it does not use the power supply in the range of 50 to 1000V
AC and 75 to 1500V DC.
Filter
Induction
Input side
(power supply side)
Output side
(device side)
Filter
Input side
(power supply side)
Output side
(device side)
Noise will be induced when the input
and output cables are bundled.
Separately install the input and
output cables.
