5-3. CE Marking
NCV-20 series conforms to CE Marking (EMC directive), but stands outside scope of the low voltage directive
because it is 24 VDC power apparatus.
5-3-1. EMC Directives
It is necessary to do CE marking in the customer’s responsibility in the state of a final product.
Confirm EMC compliance of the machine and the entire device by customer because EMC changes
configuration of the control panel, wiring, and layout.
5-3-2. EMC Directive and Standards
EMC Directive consists of immunity and emission items.
It conforms to Table 01(see below) of EMC standards and Testing.
Table 01 EMC Standard and Testing
Class
Standard No. Name
EN61000-6-4 EMC common emission standard
(Industrial environments)
EMI
(Emission)
EN55011 Class A Limits and methods of measurement of
electromagnetic disturbance characteristics
of industrial, scientific, and medical
equipment (ISM).
EN61000-6-2 EMC common immunity standard
(Industrial Environments)
EN61000-4-2
Electro-static discharge test
EN61000-4-3 Radiated electromagnetic radio frequency
test
EN61000-4-4 First transient / burst test
EN61000-4-5 Surge immunity test
EN61000-4-6 Conducted susceptibility test
EMS
(Immunity)
EN61000-4-8 Power frequency magnetic field test
5-3-3. Measures for EMC Compliance
The power supply cable must be under 10m from 24 VDC power supply to the converter.
The I / O cable must be under 10m from the host controller to the converter. The wiring should be surely
secured.
[Reference]
It may be improved when clamp ferrite core is added to the power supply cable, sensor cable,
and I/O cable when it operates faultily by the influence from the peripheral device.
Recommendation Clamp Ferrite Core
Mounting location Clamp ferrite core model Manufacturer
Power supply cable, sensor cable ZCAT2032-0930
(Inner dimensions: 9)
TDK
I / O cable ZCAT3035-1330
(Inner dimensions: 13)
TDK
15