Ec Directives (Ce Marking); General Description; Emc Directive - Mitsubishi LE-30CTN Instruction Manual

13. EC Directives (CE Marking)

13. EC Directives (CE Marking)
13.1

General description

• EC Directives were issued to standardize the regulations of the EU countries and ensure smooth distribution
of safety-guaranteed products.
EU countries make it mandatory that products sold in the EU countries meet the basic safety requirements
specified in the Machinery Directive (effective in January, 1995), EMC Directive (effective in January, 1996)
and LVD Directive (effective in January, 1997) among EC Directives and get attachment of the CE mark (CE
marking).
The CE marking is applicable to tension controllers with self-declaration of conformity to the EMC Directive
and LVD Directive, actuators (such as powder clutches/brakes, AC servo amplifies and vector inverters)
combined with such tension controllers and machines and systems in which sensors (tension detectors) are
incorporated.
• Powder clutches/brakes and tension detectors are not direct targets of the EMC Directive, but it is confirmed
that the tension controller LE-30CTN combined with a powder clutch/brake and tension detector conforms to
the EMC Directive.
Machines and systems incorporating such products are regarded as targets of the EMC Directive, and should
get attachment of the CE mark.
This chapter explains the installation method and measures to achieve the electromagnetic compatibility so
that machines and systems incorporating the LE-30CTN, powder clutch/brake (, AC servo amplifier or vector
inverter) and tension detector can easily conform to the EMC Directive.
• We have performed confirmation tests for conformity to the EMC Directive using representative models in the
environment based on the installation status described here, but cannot confirm the conformity in the actual
use situation.
The electromagnetic compatibility varies depending on the control box configuration incorporating the LE-
30CTN, the relationship with other incorporated electric products, wiring status and layout status. Each user
should confirm the electromagnetic compatibility of the entire machine or system.
13.2

EMC Directive

The EMC (Electromagnetic Compatibility) Directive mainly regulates the following two abilities.
(1) Emission (EMI: Electromagnetic Interference)
Ability not to release interference noise which gives adverse impact to the outside
(2) Immunity (EMS: Electromagnetic Susceptibility)
Ability to avoid malfunction caused by interference noise coming from the outside
Each of the above abilities can be classified as shown in the table below.
The contents of standards and tests required in final machines and systems are almost equivalent.
Classifi-
cation
Emission
(EMI)
Immunity
(EMS)
Name
Radiated emission (RE)
Conducted emission (CE)
Electrostatic discharge (ESD) Noise emitted from charged human body
Radiated electromagnetic field
(RS)
High-speed transient burst
High energy surge
Conducted interference (CS)
Magnetic field at power supply
frequency
Voltage drop and voltage
interruption
Description
Electromagnetic noise radiated into air
Electromagnetic noise flowing out of power
line
Electromagnetic noise emitted from radio
and broadcasting station
Relay noise and electromagnetic noise
generated when power is turned ON or OFF
Electromagnetic noise generated by
lightning stroke
Electromagnetic noise flowing into through
power cable or grounding cable
Electromagnetic noise at power supply
frequency (50/60 Hz)
Noise generated by fluctuation of supply
voltage
13.1 General description
Basic stan-
dard
EN55011
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
EN61000-4-8
EN61000-4-11
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