Ec Directives; Multiple I/O Terminal - Omron DEVICENET#05-2003 Operation Manual

EC Directives

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EC Directives

The MULTIPLE I/O TERMINAL conforms to EMC as follows:
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 the
overall machine. 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 on which the OMRON devices are installed.
The customer must, therefore, perform the final check to confirm that devices
and the overall machine conform to EMC standards.
The MULTIPLE I/O TERMINAL products that comply with EC Directives must
be installed as follows:
1,2,3... 1. MULTIPLE I/O TERMINAL products are designed for installation inside
control panels. All MULTIPLE I/O TERMINAL products 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. MULTIPLE I/O TERMINAL products that meet EC Directives also meet the
Common Emission Standard (EN50081-2). However, radiated emission
(at 10 m) will vary with the overall configuration of the control panel, other
devices connected to the control panel, and other conditions. You must
therefore confirm that EC Directives are satisfied for the overall machine or
device.
4. MULTIPLE I/O TERMINAL products that meet EC Directives have config-
urations with less than 30 m of I/O wiring, and less than 10 m of power sup-
ply wiring.
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 Master
Unit.
Ferrite Core (Data Line Filter): LF130B (Manufactured by Easy Magnet Co.)
Impedance specifications
25 MHZ:
100 MHZ: 190
13 mm
2. Wire the control panel with cables as thick and short as possible and
ground to 100
105
30 mm
31.5 mm
min.
32 mm
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