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Warning, Circuit design and wiring, English – KEYENCE SL-R11E User Manual

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ENGLISH

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3. Warning

Operators

• In order for the SL-R11E to operate properly, the responsible personnel and machine operators must

follow all procedures described in this instruction manual.

• No person other than the responsible personnel and machine operators should be allowed to install or

test the SL-R11E.

• When performing electrical wiring, always follow electrical standards and regulations for the country or

region in which the SL-R11E is being used.

Usage environment

• Do not use the device in an environment (temperature, humidity, interfering light, etc.) that does not

conform to the specifications contained in this instruction manual.

• Do not use wireless devices such as cellular phones or transceivers in the vicinity of the SL-R11E.
• The SL-R11E is not designed to be explosion-proof. Never use it in the presence of flammable or

explosive gases or elements.

• Do not use the SL-R11E in the presence of substances, such as heavy smoke, particulate matter, or

corrosive chemical agents, that may induce deterioration in product quality.

Target machine

• The SL-R11E has not undergone the model certification examination in accordance with Article 44-2 of

the Japanese Industrial Safety and Health Law. The SL-R11E, therefore, cannot be used in Japan as a
“Safety Device for Press and Shearing machines” as established in Article 42 of that law.

• The machine on which the SL-R11E is to be installed must be susceptible to an emergency stop at all

operating points during its operation cycle. Do not use the SL-R11E for machines with irregular stop
times.

• Do not use the SL-R11E for power presses equipped with full-revolution clutches.
• Do not use the SL-R11E to control (stop forward motion, etc.) trains, cars and other transportation

vehicles, aircraft, equipment for use in space, medical devices, or nuclear power generation systems.

• The SL-R11E is designed to protect people or objects from entering a machine’s hazardous zone or

hazard. It cannot provide protection against objects or materials that are displaced from the machine's
hazardous zone or hazard, and so implement additional safety measures such as installing safeguards
when there is the possibility of such displacements.

Installation

• Install the SL-R11E inside an enclosure such as a control panel that offers a rating of at least IP54 in

accordance with the IEC 60529 standard.

• The SL-R11E is a special control unit for the Safety Light Curtain SL-C Series, so be sure to connect it

to the SL-C Series when using it.

4. Circuit Design and Wiring

Always turn off the device power when performing electrical wiring.

Follow electrical standards and regulations for the country or region in which the SL-R11E is being used
when performing the electrical wiring. Only qualified persons should perform wiring.

Do not place any cables or electrical lines used in wiring the SL-R11E in the same duct as high-voltage
electrical or power lines or in parallel with such lines.

Do not extend transmitter and receiver cables over a maximum distance of 30 meters (98.43 ft.).

Install the mechanism used to reset the interlock (switches, etc.) in a position from which the condition of
the entire hazardous zone can be checked. Do not install the reset mechanism in a position where it can
be operated within the hazardous zone.

The control outputs (OSSD) of the two systems provided in the SL-R11E must both be used to build a
safety system. Building a safety system with just one of these systems cannot stop the machine due to a
control output malfunction and can result in a serious accident, including serious injury or death to the
machine operator.

The AUX output provided in the SL-R11E is not an output for the safety system, so it cannot be used by
connecting a control output (so called OSSD or MPCE) to stop the machine. If using the AUX by connect-
ing an output to build a safety system and stop the machine, it could result in the serious injury or death of
the machine operator.

When wiring the SL-R11E output terminal to the machine control circuit of a machine containing the SL-C,
check with the machine manufacturer to make sure the wiring is appropriate for the machine being used
to ensure that the machine can be stopped correctly. If the wiring is not done correctly for the machine, a
serious accident, such as serious injury or death to the machine operator could result.

Connect the load (MPCE) between the control output (OSSD) and 0V. If it is erroneously connected
between the control output (OSSD) and +24V, the OSSD does not operate normally and the SL-C Series
turns ON when the beams are blocked. This is very dangerous.