KEYENCE GL-RHG Series - Manual

1 E GL-RHG-IM
Safety Light Curtain for Press
Machines
GL-RHG Series
Instruction Manual
This Instruction manual describes handling, operation, and precautionary information for the GL-RHG
Series Safety Light Curtain for Press Machines ("GL-RHG").
Read this Instruction manual thoroughly before operating the GL-RHG 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 manual is the original instruction manual.
Symbols
The following symbols alert you to important messages. Be sure to read these messages carefully.
Point It indicates additional information on proper operation.
Reference It indicates tips for better understanding or useful information.
Indicates reference pages in this or another manual.
Safety Information for GL-RHG Series
 General precautions
 Precaution on use
 Operators
 Environment of use
 Target machine
 Installation
Detailed information about functions and use of the GL-RHG series is also described in the "GL-RHG
Series User's Manual", and the configuration software of "Safety Device Configurator" is needed to use
all functions of the GL-RHG. In order to acquire the "GL-RHG Series User's Manual" and "Safety Device
Configurator", download them from the KEYENCE website or call the nearest KEYENCE office.
<KEYENCE website> http://www.keyence.com
DANGER
It indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
NOTICE
It indicates a situation which, if not avoided, could result in product damage as well as
property damage.
DANGER
• You must verify that the GL-RHG is operating correctly in terms of functionality and
performance before the start of machine and the operation of the GL-RHG.
• KEYENCE does not guarantee the function or performance of the GL-RHG if it is used in
a manner that differs from the GL-RHG specifications contained in this manual or if the
GL-RHG is modified by the customer.
• When using the GL-RHG to protect machine operators against a hazard or hazardous
zone or using the GL-RHG as a safety component for any purpose, always follow the
applicable requirements of the laws, rules, regulations and standards in the country or
region where the GL-RHG is used. For such regulations, you should directly contact to
the regulatory agency responsible for occupational safety and health in your country or
region.
• Depending on the type of machine on which the GL-RHG is to be installed, there may be
special safety regulations related to the use, installation, maintenance, and operation of
the safety component. In such a case, you must fulfill such safety regulations. The
responsible personnel must install the GL-RHG 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 GL-RHG. "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 GL-RHG, and they must
understand and fulfill the safety regulations in the country or region in which they are
using the GL-RHG.
• When the GL-RHG fails to operate, machine operators must immediately stop the use of
the machine and the GL-RHG and report this fact to the responsible personnel.
• The GL-RHG is designed with the assumption that it would be correctly installed in
accordance with the installation procedures described in this manual and correctly
operated according to the instructions in this manual. You must perform an appropriate
installation of the GL-RHG after performing a sufficient risk assessment for the target
machine.
• Be sure to absolutely confirm that there is nobody in the hazardous zone, before you
remove the GL-RHG from the machine for replacement or disposal.
• When disposing the GL-RHG, always follow the applicable requirements of the laws,
rules, regulations and standards in the country or region where the GL-RHG is used.
• The GL-RHG should be processed as an industrial waste product when being disposed.
DANGER
• In order to operate the GL-RHG correctly, the responsible personnel and machine
operators must fulfill all of the procedures described in this manual.
• No person other than the responsible personnel and machine operators should be
allowed to install or test the GL-RHG.
• When performing electrical wiring, always fulfill the electrical standards and regulations
for the country or region in which the GL-RHG is used.
96M12404
DANGER
• Do not use the GL-RHG in an environment (temperature, humidity, interfering light, etc.)
that does not conform to the specifications contained in this manual.
• Be sure to confirm that the GL-RHG keeps normal operation when electromagnetic
radiation is generated by wireless devices. (If you use wireless devices such as cellular
phones or transceivers in the vicinity of the GL-RHG.)
• The GL-RHG is not designed to be explosion-proof. Never use it in the presence of
flammable or explosive gases or elements.
• Be sure to confirm no deterioration in product quality if you use the GL-RHG in the
presence of substances, such as heavy smoke, particulate matter, or corrosive chemical
agents.
• Do not install the GL-RHG in areas where the GL-RHG is exposed to intense interference
light such as direct sunlight, and direct or indirect light from an inverter-type fluorescent
lamp (rapid-start type lamp, high-frequency operation type lamp, etc).
• Be sure to absolutely confirm that there is nobody in the hazardous zone before the
override function is activated. Failure to follow this warning results in significant harm
to the machine operators, including serious injury or death.
DANGER
• When using GL-RHG as a press machine safety device in Japan, press machines other
than those fulfilling the following specifications cannot be used.
• When using GL-RHG as a shearing machine (paper cutting machine) safety device in
Japan, shearing machines (paper cutting machines) other than those fulfilling the
following specifications cannot be used.
• The machine on which the GL-RHG is to be installed must be susceptible to an
emergency stop at all operating points during its operation cycle. Do not use the
GL-RHG for machines with irregular stop times.
• Do not use the GL-RHG for power presses equipped with full-revolution clutches.
• The GL-RHG 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 GL-RHG 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 GL-RHG is designed to protect people or objects from going into/approaching
protective zone against machine's hazard or hazardous zone. It cannot provide
protection against objects or materials 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.
DANGER
• The GL-RHG must be installed only after ensuring the minimum safety distance between
the GL-RHG and the hazardous zone or hazard as established by the applicable
regulations in the country or region in which the GL-RHG is used. (e.g. EN ISO13855
(ISO 13855) in EU countries)
• Choose locations for the installation of the GL-RHG transmitters and receivers so that
they are not subject to the effects of light reflected from glossy surfaces in the area.
• The GL-RHG 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 protective zone of
the GL-RHG. Strictly avoid installation that allows the machine operator or a part of the
machine operator's body to go into or approach the hazardous zone or hazards without
passing through the protective zone of the GL-RHG or to remain in position between the
protective zone of the GL-RHG and the hazardous zone or hazard.
• You must always perform the pre-check tests after installing the GL-RHG in accordance
with the pre-check test procedures, such as items specified in this manual, in order to
verify that the test pieces can be detected in all of the protective zones.
• Muting is a function to allow a temporary automatic suspension of the GL-RHG safety
functions while the GL-RHG is receiving a signal from muting devices (such as sensors
or switches). Therefore, additional safety measures are required for the machine on
which the GL-RHG 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 manual and the requirements
of the laws, rules, regulations and standards in the country or region in which the
GL-RHG 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 protective zone of the GL-RHG.
• The muting device must be installed such that only responsible personnel have access
to that device to change the 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 a muting lamp may be required by the laws, rules, regulations, and
standards in the country or region in which the GL-RHG is used if you apply the muting
function. It depends on the machine application and/or the result of your risk
assessment. If it is necessary for you to provide a muting lamp, you must fulfill the
requirements because you are fully responsible for installation of the muting lamp.
• The override is a function to allow a temporary manual suspension of the safety
functions of the GL-RHG. Therefore, additional safety measures are required for the
entire machine system on which the GL-RHG 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 GL-RHG 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 devices. 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 GL-RHG is used if you
apply the override function. It depends on the machine application and/or the result of
your risk assessment. 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.
Item Specifications
Type
Press machine equipped with a quick-stopping device and
restart prevention mechanism
Pressure capability 50,000 kN or less
Emergency stop time 500 ms or less
Length of strokes Less than (protection height – Die height)
Size range of metal die Less than the bolster width
Item Specifications
Type
Shearing machine (paper cutting machine) equipped with a quick-
stopping mechanism and restart prevention mechanism
Cut thickness 200 mm or less
Cut width 5,000 mm or less
Blade length 5,500 mm or less
Emergency stop time 500 ms or less