Table of Contents
Advertisement
Appendix 5
In each country, laws and regulations concerning electromagnetic compatibility (EMC) and electrical safety are
enacted. For the products sold in the European countries, compliance with the EU's EMC Directive has been a legal
obligation as EMC regulation since 1996, as well as the EU's Low Voltage Directive as electrical safety regulation since
1997.
Manufacturers who recognize their products are compliant with the EMC and Low Voltage Directives are required to
attach a "CE marking" on their products in European countries.
In some other countries and regions, manufacturers are required to make their products compliant with applicable laws
or regulations and attach a certification mark on the products as well (such as UK Conformity Assessed (UKCA)
marking in the UK, and Korea Certification (KC) marking in South Korea).
Each country works to make their regulatory requirements consistent across countries based on international
standards. When the requirements are consistent, measures to comply with the EMC and electrical safety regulations
become common across countries.
The UK and South Korea have enacted EMC regulations whose requirements are consistent with those of the EMC
Directive.
The UK has also enacted electrical safety regulations whose requirements are consistent with those of the Low
Voltage Directive. In this section, the requirements of the EMC and Low Voltage Directives are described as examples
of those of the EMC and electrical safety regulations.
Appendix 5.1
The EMC Directive sets two requirements for compliance: emission (conducted and radiated electromagnetic energy
emitted by a product) and immunity (the ability of a product to not be influenced by externally generated
electromagnetic energy).
This section summarizes the precautions for machinery constructed with the bridge module to comply with the EMC
Directive.
These precautions are based on the requirements of the EMC Directive and the harmonized standards. However, they
do not guarantee that the entire machinery constructed according to the descriptions complies with the EMC Directive.
The manufacturer of the machinery must determine the testing method for compliance and declare conformity to the
EMC Directive.
(1) EMC Directive related standards
(a) Emission requirements
Standard
Test item
CISPR16-2-3
Radiated emission
EN61131-2:
2007
CISPR16-2-1, CISPR16-1-2
Conducted emission
*1
QP: Quasi-Peak value, Mean: Average value
*2
The bridge module is an open type device (a device designed to be housed in other equipment) and must be installed
inside a conductive control panel.
EMC and Low Voltage Directives
Measures to comply with the EMC Directive
Test description
The electromagnetic wave which
the product emits to the external
*2
space is measured.
The noise level which the product
emits to the power line is
*2
measured.
APPENDICES
Value specified in standard
• 30 to 230MHz, QP: 40dBV/m (measured
*1
at 10m distance)
• 230 to 1000MHz, QP: 47dBV/m
(measured at 10m distance)
• 0.15 to 0.5MHz, QP: 79dB, Mean: 66dB
• 0.5 to 30MHz, QP: 73dB, Mean: 60dB
A
*1
133
Advertisement
Table of Contents
Troubleshooting
