20 - 2
20. EMC AND LOW VOLTAGE DIRECTIVES
20.1.1 EMC standards
Standards related to the EMC directives are described below.
*1 QP: Quasi-peak value, Mean: Average value
*2 The PLC is an open type device (device installed to another device) and must be installed in a
conductive control panel.The tests for the corresponding items were performed while the PLC
was installed inside the control panel.
Specifications Test Item Test Description Standard Values
EN61000-6-4
(2001)
EN55011
*2
Radiated noise
Measure the emission released by
the product.
30 M-230 M Hz QP :
30dB V/m (30m measurement)
*1
230 M-1000 M Hz QP :
30dB V/m (30m measurement)
*1
EN55011
*2
Conduction noise
Measure the emission released by
the product to the power line.
150 K-500k Hz QP:
79 dB, Mean : 66 dB
*1
500 K-30M Hz QP :
73 dB, Mean: 60 dB
*1
EN61131-2/A12
(2000)
EN61000-4-2
*2
Static electricity immunity
Immunity test by applying static
electricity to the module enclosure.
4kV
8kV
contact discharge
air discharge
EN61000-4-4
*2
First transient burst noise
Immunity test by applying burst
noise to the power line and signal
line.
2kV
1kV
power line
signal line
EN61000-4-12
*2
Damped oscillatory wave
Immunity test in which damped
oscillatory waves are applied to
power line.
1kV
EN61000-4-3
*2
Radiated electromagnetic field
Immunity test in which electric fields
are applied to the product.
10V/m, 26-1000MHz
EN61000-6-2
(2001)
EN61000-4-6
*2
Conduction noise
Immunity test in which
electromagnetic fields are induced to
power cables and signal line.
10V, 0.15-80MHz