Omron SYSMAC CJ1W-SCU21-V1, Operation Manual

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Conformance to EC Directives 6
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.
Note Applicable EMS (Electromagnetic Susceptibility) and EMI (Electromagnetic
Interference) standards in the EMC (Electromagnetic Compatibility) standards
are as follows:
Low Voltage Directive
Always ensure that devices operating at voltages of 50 to 1,000 VAC and 75
to 1,500 VDC meet the required safety standards for the PLC (EN61131-2).
6-3 Conformance to EC Directives
The CS/CJ-series PLCs comply with EC Directives. To ensure that the
machine or device in which the CS/CJ-series PLC is used complies with EC
directives, the PLC must be installed as follows:
1,2,3...
1. The CS/CJ-series PLC must be installed within a control panel.
2. You must use reinforced insulation or double insulation for the DC power
supplies used for the communications power supply and I/O power sup-
plies.
3. CS/CJ-series PLCs complying with EC Directives also conform to the
Common Emission Standard (EN61000-6-4). Radiated emission charac-
teristics (10-m regulations) may vary depending on the configuration of the
control panel used, other devices connected to the control panel, wiring,
and other conditions. You must therefore confirm that the overall machine
or equipment complies with EC Directives.
6-4 EMI Measures for Serial Communications Boards and Units
The CS/CJ-series PLCs conform to the Common Emission Standards
(EN61000-6-4) of the EMC Directives. However, the noise generated from
Serial Communications Board or Unit communications cables may not satisfy
these standards. In such a case, commercially available ferrite cores must be
placed on the communications cable or other appropriate countermeasures
must be provided external to the PLC.
Unit/Board EMS EMI
CS1W-SCB21-V1/
SCB41-V1
CS1W-SCU21-V1 EN61131-2 EN61000-6-4
(Radiated emission: 10-m
regulations)
CJ1W-SCU21-V1
CJ1W-SCU31-V1
CJ1W-SCU41-V1
CS1W-SCU31-V1 EN61000-6-2