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Conformance to EC Directives 6
6 Conformance to EC Directives
6-1 Applicable Directives
• EMC Directives
6-2 Concepts
EMC Directives
OMRON devices that comply with EC Directives also conform to the related
EMC standards so that they can be more easily built into other devices or
machines. The actual products have been checked for conformity to EMC
standards. (See the following note.) Whether the products conform to the
standards in the system used by the customer, however, must be checked by
the customer.
EMC-related performance of the OMRON devices that comply with EC Direc-
tives will vary depending on the configuration, wiring, and other conditions of
the equipment or control panel in which the OMRON devices are installed.
The customer must, therefore, perform final checks to confirm that devices
and the overall machine conform to EMC standards.
Note Applicable EMS (Electromagnetic Susceptibility) and EMI (Electromagnetic
Interference standards in the EMC (Electromagnetic Compatibility) standards
are as follows:
6-3 Conformance to EC Directives
DeviceNet products that meet EC directives must be installed as follows:
1,2,3... 1. DeviceNet Units are designed for installation inside control panels. All De-
viceNet Units must be installed within control panels.
2. Used reinforced insulation or double insulation for the DC power supplies
used for the communications power supply, internal circuit power supply,
and the I/O power supplies.
3. DeviceNet products that meet EC directives also meet the common emis-
sion standard (EN50081-2). When DeviceNet products are built into equip-
ment, however, the measure necessary to ensure that the standard is met
will vary with the overall configuration of the control panel, the other devic-
es connected to the control panel, and other conditions. You must there-
fore confirm that EC directives are met for the overall machine or device,
particularly for the radiated emission requirement (10 m).
The following examples show means of reducing noise.
1,2,3.... 1. Noise from the communications cable can be reduced by installing a ferrite
core on the communications cable within 10 cm of the DeviceNet Unit.
Unit EMS EMI
CS1W-DRM21 EN50082-2 EN50081-2
CJ1W-DRM21 EN61000-6-2