Precautions on regulations and standards – KEYENCE KV Series User Manual

Page 4

PRECAUTIONS ON REGULATIONS AND STANDARDS

■ CE Marking

Keyence Corporation has confirmed that this product complies with the
essential requirements of the applicable EC Directive, based on the following
specifications. Be sure to consider the following specifications when using
this product in the Member State of European Union.

●EMC Directive (2004/108/EC)
• Applicable Standard

EMI: EN61131-2, Class A
EMS: EN61131-2

When using a relay output type unit (whose model name ends with "R"),
connect spark killers having the appropriate withstand voltage against the
load to the output terminals in parallel to contacts (because the unit
discharges when a relay contact becomes open and noise is generated). In
our experiments, we use the following models of spark killers.

XEB0101 0.1 µF-10 Ω manufactured by OKAYA DENKI SANGYO

The following 1-turn ferrite core is added to the AC power input circuit of the
KV-40AR/T, the KV-24AR/T and to the DC power input circuit of the KV-
40DR/T.

ZCAT3035-1330 manufactured by TDK

Remarks: These specifications do not give any guarantee that the end-
product with this product incorporated complies with the essential require-
ments of EMC Directive. The manufacturer of the end-product is solely
responsible for the compliance on the end-product itself according to EMC
Directive.

●Low-Voltage Directive (2006/95/EC)
The Low-voltage Directive is applied to Relay output type only.
• Applicable standard EN61131-2
• Over voltage category II
• Use insulated type crimp-style terminals.
• For wiring materials, use lead wires whose sheath is 0.4 mm or more.
• The KV Series is allowed to be installed in a front installation only.

(Spacers for expansion units are not available.)

• When installing this product, it must be installed in an enclosure (Industrial

control panel) with IP 54 or higher.

• For wiring to the Power input terminal, Input terminal block and Output

Terminal block, use stranded copper wire having a gage of AWG#16 to
#24. The tightening torque is 0.5 N•m.