Mitsubishi 13J851, Руководство пользователя

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3
3. EMC AND LOW VOLTAGE DIRECTIVES
The products sold in the European countries have been required by law to comply
with the EMC and Low Voltage Directives of the EU Directives since 1996 and
1997, respectively.
The manufacturers must confirm by self-declaration that their products meet the
requirements of these directives, and put the CE mark on the products.
3.1 Requirements for Compliance with EMC Directive
The EMC Directive specifies emission and immunity criteria and requires the
products to meet both of them, i.e., not to emit excessive electromagnetic
interference (emission): to be immune to electromagnetic interference outside
(immunity).
Guidelines for complying the machinery including MELSEC-QnA series PLC with
the EMC Directive are provided in Section 3.1.1 to 3.1.6 below.
The guidelines are created based on the requirements of the regulations and
relevant standards, however, they do not guarantee that the machinery
constructed according to them will comply with the Directives.
Therefore, manufacturers must finally determine how to make it comply with the
EMC Directives.
3.1.1 EMC Directive standards
The standards relevant to EMC Directive are listed in the table below:
Specifications Test Item Test Description Standard Values
EN55011 *2
Radiated noise
Measure the emission released by
the product.
30M-230 M Hz QP: 30dB
μ
V/m (30m measurement) *1
230M-1000MHz QP: 37dB
μ
V/m (30m measurement) *1
EN61000-6-4
(2001)
EN55011 *2
Conduction noise
Measure the emission released by
the product to the power line.
150k-500kHz QP: 79dB,
Mean: 66dB*1
500k-30MHz QP: 73dB,
Mean: 60dB *1
EN61000-4-2 *2
Static electricity
immunity
Immunity test by applying static
electricity to the module
enclosure.
4kV contact discharge
8kV air discharge
EN61000-4-4 *2
First transient burst
noise
Immunity test by applying burst
noise to the power line and signal
line.
2kV Power line
1kv Signal line
EN61000-4-12 *2
Damped oscillatory
wave
Immunity test in which a damped
oscillatory wave is superimposed
on the power line.
1kv
EN61131-2/A12
(2000)
EN61000-4-3 *2
Radiated
electromagnetic field
Immunity test by applying a
radiated electric field to the
product.
10V/m, 26-1000MHz
EN61000-6-2
(2001)
EN61000-4-6 *2
Conduction noise
Immunity test by inducting an
electromagnetic field in the power
line signal line.
10 V/ms, 0.15-80MHZ, 80%
AM modulation@1kHz
(*1) QP: Quasi-peak value, Mean: Average value
(*2) PLCs must be installed inside the conductive control panel, as they are open-type devices (devices
to be incorporated into other equipment). The test was conducted with the PLC installed inside a
control panel.