KEYENCE SL-VHS Series - Manual

1 SL-VHS-IM-E
Introduction
This instruction manual describes handling, operation, and precautionary information for the SL-VHS
Series Safety Light Curtain ("SL-VHS").
Read this instruction manual thoroughly before operating the SL-VHS in order to understand the
device features, and keep this instruction manual readily available for reference. Ensure that the end
user of this product receives this manual.
This instruction manual uses the following headings to display important safety information. Strict
adherence to the instructions next to these heading is required at all times.
Failure to follow the instruction results in a significant harm to the machine operators
including serious injury or death.
Failure to follow the instruction may result in damage to the SL-VHS or to the machine on
which it is installed.
Provides additional information for proper operation.
Provides advanced and useful information for operation.
Safety Precautions
• You must verify that the SL-VHS is operating correctly in terms of functionality and performance
before the start of machine and the operation of the SL-VHS.
• KEYENCE does not guarantee the function or performance of the SL-VHS if it is used in a manner that differs
from the SL-VHS specifications contained in this instruction manual or if the SL-VHS is modified by the customer.
• When using the SL-VHS to protect machine operators against a hazard or hazardous zone or using the SL-VHS
as a safety component for any purpose, always follow the applicable requirements of the laws, rules, regula-
tions and standards in the country or region where the SL-VHS is used. For such regulations, you should con-
tact directly to the regulatory agency responsible for occupational safety and health in your country or region.
• Depending on the type of machine on which the SL-VHS is to be installed, there may be special
safety regulations related to the use, installation, maintenance, and operation of the safety compo-
nent. In such a case, you must fulfill such safety regulations. The responsible personnel must install
the SL-VHS in strict compliance with such safety regulations.
• The responsible personnel must do the training to the assigned personnel for the correct use, installation,
maintenance, and operation of the SL-VHS. "Machine operators" refers to personnel who have received
appropriate training from the responsible personnel and are qualified to operate the machine correctly.
• Machine operators must have specialized training for the SL-VHS, and they must understand and
fulfill the safety regulations in the country or region in which they are using the SL-VHS.
• When the SL-VHS fails to operate, machine operators must immediately stop the use of the
machine and the SL-VHS and report this fact to the responsible personnel.
• The SL-VHS is designed with the assumption that it would be correctly installed in accordance with
the installation procedures described in this instruction manual and correctly operated according to
the instructions in this instruction manual. You must perform an appropriate installation of the SL-VHS
after performing a sufficient risk assessment for the target machine.
• The SL-VHS should be processed as an industrial waste product when being disposed.
■ Operators
• In order to operate the SL-VHS correctly, the responsible personnel and/or machine
operators must fulfill all of the procedures described in this instruction manual.
• No person other than the responsible personnel should be allowed to install or test the
SL-VHS.
• When performing electrical wiring, always fulfill the electrical standards and regulations for
the country or region in which the SL-VHS is used.
■ Environment of use
• Do not use the SL-VHS 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-VHS.
• The SL-VHS is not designed to be explosion-proof. Never use it in the presence of flam-
mable or explosive gases or elements.
• Do not use the SL-VHS in the presence of substances, such as heavy smoke, particulate
matter, or corrosive chemical agents, that may induce deterioration in product quality.
• Install the SL-VHS in such a way so that no direct or indirect light from inverter-type fluores-
cent lights (rapid-start type lights, high-frequency operation type lights, etc.) shine on the
device.
• Be sure to absolutely confirm that there is nobody in the hazardous zone, before the over-
ride function is activated. Failure to follow this warning results in a significant harm to the
machine operators, including serious injury or death.
■ Target machine
• The SL-VHS has not undergone the model certification examination in accordance with Article
44-2 of the Japanese Industrial Safety and Health Law. The SL-VHS, 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-VHS is to be installed must be susceptible to an emergency stop at all
operating points during its operation cycle. Do not use the SL-VHS for machines with irregular stop
times.
• Do not use the SL-VHS for power presses equipped with full-revolution clutches.
• The SL-VHS cannot be used as a PSDI because it does not fulfill the requirements of
OSHA 1910.217(h). Refer to OSHA 1910.217 for the PSDI mode.
• Do not use the SL-VHS to control (stop forward motion, etc.) trains, cars and other transportation
vehicles, aircraft, equipment for use in space, medical devices, or nuclear power generation sys-
tems.
• The SL-VHS is designed to protect the people or objects going into/approaching detection zone
against machine’s hazard or hazardous zone. It cannot provide protection against objects or materi-
als that are expelled from the machine’s hazard or hazardous zone, so you must establish additional
safety measures such as installing safeguards when there is the possibility of such projectiles.
■ Installation
• The SL-VHS must be installed only after ensuring the minimum safety distance between
the SL-VHS and the hazardous zone or hazard as established by the applicable regula-
tions in the country or region in which the SL-VHS is used. (e.g. EN999 (ISO 13855) in EU
countries)
• Choose locations for the installation of the SL-VHS transmitters and receivers so that they
are not subject to the effects of light reflected from glossy surfaces in the area.
• Correct operation and detection is not possible if the receiver has a different number of
beam axes from that of the transmitter. You must verify that the number of beam axes is
the same between the transmitter and the receiver when installing the SL-VHS.
• Correct operation and detection is not possible if the receiver has a different beam axis spacing
(detection capability) from that of the transmitter. You must verify that the beam axis spacing (detec-
tion capability) is the same between the transmitter and the receiver when installing the SL-VHS.
• The SL-VHS must be installed so that the machine operator is able to go into or approach the hazardous
zone or hazards only by passing through the detection zone of the SL-VHS. Strictly avoid installation that
allows the machine operator or a part of the machine operator's body to go into or approach the hazard-
ous zone or hazards without passing through the detection zone of the SL-VHS or to remain in a position
between the detection zone of the SL-VHS and the hazardous zone or hazard. In case where you install
the SL-VHS units in series (series connection), you always must check the installation carefully whether
you follow this warning, especially after installation and maintenance.
• You must always perform the pre-check tests after installing the SL-VHS in accordance
with the pre-check test procedures, such as items specified in this instruction manual, in
order to verify that the test pieces can be detected in all of the detection zones.
• Muting is a function to allow a temporary automatic suspension of the SL-VHS safety func-
tions while the SL-VHS is receiving a signal from one or more muting devices (such as
sensors or switches). Therefore, additional safety measures are required for the machine
on which the SL-VHS is installed in order to ensure safety while the muting is activated.
• Muting devices, the installation of those devices and the procedure to activate the muting
function must fulfill the conditions specified in this instruction manual and the require-
ments of the laws, rules, regulations and standards in the country or region in which the
SL-VHS and those devices are used. Failure to follow this warning may result in significant
harm to the machine operators, including serious injury or death.
• When you install muting devices (such as sensors or switches) for muting, the following
conditions must be fulfilled.
(1) Muting devices must be installed so that the muting cannot be activated if the
hazardous zone of the machine is in an unsafe condition or cycle.
(2) Muting devices must be installed so that the muting cannot be activated even if the
personnel is accidentally approaching the detection zone of the SL-VHS.
• The muting device must be installed such that only responsible personnel have access to that
device to change its installation or orientation. Special tools must be required to ensure that
only responsible personnel are capable of installation, orientation or change of muting device.
• Only the responsible personnel may be allowed to install or wire the devices to activate the muting function.
• The installation of muting lamp may be required by the laws, rules, regulations, and stan-
dards in the country or region in which the SL-VHS is used if you apply the muting func-
tion. It depends on the machine application and/or the result of your risk assessment. If it
is necessary for you to provide the muting lamp, you must fulfill the requirements because
you are fully responsible for installation of muting lamp.
• The override is a function to allow a temporary manual suspension of the safety functions of
the SL-VHS. Therefore, additional safety measures are required for the whole machine sys-
tem on which the SL-VHS is installed in order to ensure safety while the override is activated.
• The override devices, the installation of those devices and the procedures to activate the
override must fulfill the conditions specified in this manual as well as the requirements of
the laws, rules, regulations and standards in the country or region in which the SL-VHS
and those devices are used. Failure to follow this warning may result in significant harm to
the machine operators, including serious injury or death.
• The override devices, which are used for activation of override, must be manual operating
device. When installing the devices to activate the override, those devices must be installed
so that the whole hazardous zone can be checked by the responsible personnel and so that
it is not possible for machine operators to operate those devices in the hazardous zone.
• The installation of the indication for override may be required by the laws, rules, regulations,
and standards in the country or region in which the SL-VHS is used if you apply the over-
ride function. It depends on the machine application and/or the result of your risk assess-
ment. If it is necessary for you to provide the indication for override, you must fulfill the
requirements because you are fully responsible for installation of the indication for override.
Safety headings
General precautions
Precaution on use
Danger
Caution
NOTE
Reference
Danger
Danger
Danger
Danger
96M12525
Safety Light Curtain
SL-VHS Series
Instruction Manual