Measures To Comply With The Emc Directive - Mitsubishi Electric MELSEC-L LJ72GF15-T2-U-HW-C Safety Manuallines

4.1

Measures to Comply with the EMC Directive

The EMC Directive specifies that "products placed on the market must
be so constructed that they do not cause excessive electromagnetic
interference (emissions) and are not unduly affected by electromagnetic
interference (immunity)". This section summarizes the precautions on
compliance with the EMC Directive of the machinery constructed with
the MELSEC-L series modules.
These precautions are based on the requirements and the standards of
the regulation, however, it does not guarantee that the entire machinery
constructed according to the descriptions will comply with above-
mentioned directives.
The method and judgment for complying with the EMC Directive must
be determined by the person who constructs the entire machinery.
(1) EMC Directive related standards
(a) Emission requirements
Specification
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 Programmable controllers are open-type devices (devices designed to be housed inside
other equipment) and must be installed inside a conductive control panel. The tests were
conducted with the programmable controller installed in a control panel, applying the
maximum applicable input voltage to the power supply module.
Test item Test details
Radio waves from the
product are
*2
measured.
Noise from the
product to the power
line is measured.
*2
• 30M-230MHz
QP: 40dBµV/m (10m in
measurement range)
• 230M-1000MHz
QP: 47dBµV/m (10m in
measurement range)
• 150k-500kHz
QP: 79dB, Mean: 66dB
• 500k-30MHz
QP: 73dB, Mean: 60dB
42
Standard value
*1
*1