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5. UL, cUL STANDARDS AND EMC DIRECTIVE
5.2 EMC Directive
5.2.1 Requirements to Meet EMC Directive
EMC Directives are those which require "any strong electromagnetic force is not output to the external.:Emission
(electromagnetic interference)" and "It is not influenced by the electromagnetic wave from the external.: Immunity
(electromagnetic sensitivity)".
Items EMC directive thru Grounding summarize the precautions to use GOT and configure the mechanical unit in
order to match the EMC directives.
Though the data described herein are produced with our best on the basis of the requirement items and standards of the
restrictions gathered by Mitsubishi, they do not completely guaranteed that all mechanical unit manufactured according
to the data do not always match the above directives. The manufacturer itself which manufactures the mechanical unit
must finally judge the method and others to match the EMC directives.
EMC directive
The standards of the EMC Directive are shown below.
*1 The GOT is an open type device (device installed to another device) and must be installed in a conductive control panel.
The above test items are conducted in the condition where the GOT is installed on the conductive control panel and combined
with the Mitsubishi PLC.
*2 QP: Quasi-peak value, Mean : Average value
*3 The above test items are conducted in the following conditions.
30M-230MHz QP : 40dB V/m (10m in measurement range)
230M-1000MHz QP : 47dB V/m (10m in measurement range)
Applied standard Test standard Test details Standard value
EN61131-2
: 2007
EN55011
Radiated noise
*1
Electromagnetic emissions from the
product are measured.
30M-230MHz QP:
30dB V/m (30m in measurement range)
*2, *3
230M-1000MHz QP:
37dB V/m(30m in measurement range)
*2, *3
EN61000-4-2
Electrostatic immunity
*1
Immunity test in which static electricity is
applied to the cabinet of the equipment.
4kV Contact discharge
8kV Aerial discharge
EN61000-4-3
Radiated field AM
modulation
*1
Immunity test in which field is irradiated
to the product.
80-1000MHz:10V/m
1.4-2GHz:3V/m
2.0-2.7GHz:1V/m
80%AM modulation@1kHz
EN61000-4-4
Fast transient burst noise
*1
Immunity test in which burst noise is
applied to the power line and signal
lines.
Power line:2kV
Digital I/O(24V or higher): 1kV
(Digital I/O(24V or less))> 250V
(Analog I/O, signal lines)> 250V
EN61000-4-5
Surge immunity
*1
Immunity test in which lightening surge
is applied to the product.
Power line (between line and ground): 0.5kV
Power line (between lines): 0.5kV
Data communication port: 1kV
EN61000-4-6
Conducted RF immunity
*1
Immunity test in which a noise inducted
on the power and signal lines is applied.
Power line: 10V
Data communication port: 10V
EN61000-4-8
Power supply frequency
magnetic field immunity
Test for checking normal operations
under the circumstance exposed to the
ferromagnetic field noise of the power
supply frequency (50/60Hz).
30 A/m