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Chapter 12 Compliance with EMC Specifications
1
Pnet I/F Module 2MLL-PSRA, 2MLL-PMEA, 2MLL-PMEB User
’s Guide R220
Honeywell
January 2019
Chapter 12 Compliance with EMC Specifications
12.1 Requirements Complying with EMC Specifications
EMC Directions describe
“Do not emit strong electromagnetic wave to the outside: Emission” and “Do not have an
influence of electromagnetic wave from the outside: Immunity
”, and the applicable products are requested to meet
the directions. The chapter summarizes how to structure a system using ML200 PLC to comply with the EMC
directions. The description is the data summarized for the requirements and specifications of EMC regulation
acquired by the company but it does not mean that every system manufactured according to the description meets
the following specifications. The method and determination to comply with the EMC directions should be finally
determined by the system manufacturer self.
12.1.1 EMC specifications
The EMC specifications affecting the PLC are as follows.
Specification
Test items
Test details
Standard value
EN50081-2
EN55011 Radiated
noise
*
2
Measure the wave emitted from a
product.
30~230
㎒
QP : 50
㏈㎶
/m
*
1
230~1000
㎒
QP : 57
㏈㎶
/m
EN55011 conducted
noise
Measure the noise that a product emits
to the power line.
150~500
㎑
QP : 79
㏈
Mean : 66
㏈
500~230
㎒
QP : 73
㏈
Mean : 60
㏈
EN61131-2
EN61000-4-
Electrostatic
immunity
Immunity test allowing static electricity to
the case of a device.
15
㎸
Air discharge
8
㎸
Contact discharge
EN61000-4-4
Fast transient burst
noise
Immunity test allowing a fast noise to
power cable and signal cable.
Power line : 2
㎸
Digital I/O : 1
㎸
Analogue I/O, signal lines : 1
㎸
EN61000-4-3
Radiated field AM
modulation
Immunity test injecting electric field to a
product.
10Vm, 26~1000
㎒
80% AM modulation@ 1
㎑
EN61000-4-12
Damped oscillatory
wave immunity
Immunity test allowing attenuation
vibration wave to power cable.
Power line : 1
㎸
Digital I/O(24V and higher) : 1
㎸
[Table 12.1.1] EMC specification list
*
1 : QP: Quasi Peak, Mean : average value
*
2 : PLC is a type of open device(installed on another device) and to be installed in a panel.
For any applicable tests, the system is tested with the system installed in a panel.