KEYENCE SL-R12EX - Manual (Page 5)

ENGLISH
3. Warning
■ Operators
• In order for the SL-R12EX 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-R12EX.
• When performing electrical wiring, always follow electrical standards and regulations for the country or
region in which the SL-R12EX 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-R12EX.
• The SL-R12EX 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-R12EX 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-R12EX has not undergone the model certification examination in accordance with Article 44-2
of the Japanese Industrial Safety and Health Law. The SL-R12EX, 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-R12EX is to be installed must be susceptible to an emergency stop at all
operating points during its operation cycle. Do not use the SL-R12EX for machines with irregular stop
times.
• Do not use the SL-R12EX for power presses equipped with full-revolution clutches.
• Do not use the SL-R12EX 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-R11 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-R12EX 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-R12EX is a special controller unit for the Safety Light Curtain SL-C Series and the Intelligent
Safety Relay Unit SL-R11, so be sure to connect it to the SL-C Series and SL-R11 when using it.
• The SL-C**L Series with the detection capability of ø45 mm (1.77") cannot be used in combination with
the SL-R12EX.
■ Function
• When floating blanking function is carried out, the SL-C series cannot keep the original detection
capability. The detection capability of the SL-C**F Series varies among ø14 mm (0.55"), ø24 mm
(0.94"), ø34 mm (1.33"), and ø44 mm (1.73") according to the exact settings used. The detection
capability of the SL-C**H Series varies among ø25 mm (0.98"), ø45 mm (1.77"), ø65 mm (2.56"), and
ø85 mm (3.35") according to the exact settings used. Therefore you must accurately calculate the new
safety distance and install the SL-C Series at the minimum safety distance separately from the
hazardous zone or hazards.
• When fixed blanking function is carried out, it may create a hazardous zone allowing human approach
between the obstacle and the SL-C Series against which the SL-C Series provides no protection. Be
sure to install additional safety protective equipment.
• Enabling the blanking blind protection function does not necessarily remove all hazardous zones
allowing human approach. Depending on the target machine, installation of the blanking blind protection
unit may result in the creation of one or more hazardous zones allowing human approach. Be sure to
read “4-4 Blanking blind protection function” (
➮4-4) in this manual before installing or using this unit.
This function can only be used in the SL-C**H Series with the detection capability of ø25 mm (0.98").
• The muting function deactivates the light curtain's safety functions while the light curtain detects the
input signal from one or more muting devices (sensors, switches, etc.). The muting devices (sensors,
switches, etc.) that are used to carry out the muting function as well as the method to install them must
satisfy all the conditions described in this instruction manual as well as the applicable requirements
imposed by all laws, regulations, standards, and ordinances in effect in the country and region where
the SL-R12EX is to be used. Failure to follow this warning results in significant harm to machine opera-
tors, including serious injury or death.
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