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Gl-r series, Safety light curtain, Instruction manual

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• Keyence Gl-r Manual
• Gl T11r Manual

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• Safety Light Curtain. Instruction Manual. This Instruction manual describes handling, operation, and precautionary information for the GL-R Series Safety Light Curtain ('GL-R'). Read this Instruction manual thoroughly before operating the GL-R in order to understand the device features, and keep this Instruction manual readily available for reference.

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1

E GL-R-IM

Safety Light Curtain

GL-R Series

Instruction Manual

This Instruction manual describes handling, operation, and precautionary information for the GL-R
Series Safety Light Curtain ('GL-R').
Read this Instruction manual thoroughly before operating the GL-R 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.
In this Instruction manual, 'GL-RF' represents the finger protection type with the detection capability of
14 mm, 'GL-RH' represents the hand protection type with the detection capability of 25 mm, 'GL-RL'
represents the body protection type with the detection capability of 45 mm and 'GL-R' represents all
the models including the GL-RF, GL-RH and GL-RL.
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-R Series



General precautions



Precaution on use



Operators



Environment of use



Target machine



Installation

Detailed information about functions and use of the GL-R series is also described in the 'GL-R Series
User's Manual', and the configuration software of 'Safety Device Configurator' is needed to use all
functions of the GL-R. In order to acquire the 'GL-R 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-R is operating correctly in terms of functionality and
performance before the start of machine and the operation of the GL-R.

•

KEYENCE does not guarantee the function or performance of the GL-R if it is used in a
manner that differs from the GL-R specifications contained in this user's manual or if
the GL-R is modified by the customer.

•

When using the GL-R to protect machine operators against a hazard or hazardous zone
or using the GL-R 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-R is used. For such regulations, you should directly contact to the
regulatory agency responsible for occupational safety and health in your country or
region.

•

Keyence Gl T11r Pdf

Depending on the type of machine on which the GL-R 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-R 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-R. '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-R, and they must
understand and fulfill the safety regulations in the country or region in which they are
using the GL-R.

•

When the GL-R fails to operate, machine operators must immediately stop the use of the
machine and the GL-R and report this fact to the responsible personnel.

•

The GL-R is designed with the assumption that it would be correctly installed in
accordance with the installation procedures described in this user's manual and
correctly operated according to the instructions in this user's manual. You must
perform an appropriate installation of the GL-R 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-R from the machine for replacement or disposal.

•

When disposing the GL-R, always follow the applicable requirements of the laws, rules,
regulations and standards in the country or region where the GL-R is used.

•

The GL-R should be processed as an industrial waste product when being disposed.

DANGER

•

In order to operate the GL-R correctly, the responsible personnel and machine operators
must fulfill all of the procedures described in this user's manual.

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•

No person other than the responsible personnel and machine operators should be
allowed to install or test the GL-R.

•

When performing electrical wiring, always fulfill the electrical standards and regulations
for the country or region in which the GL-R is used.

96M12000

DANGER

•

Do not use the GL-R in an environment (temperature, humidity, interfering light, etc.)
that does not conform to the specifications contained in this user's manual.

•

Be sure to confirm that the GL-R 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-R.)

•

The GL-R 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-R in the
presence of substances, such as heavy smoke, particulate matter, or corrosive chemical
agents.

•

Do not install the GL-R in areas where the GL-R 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
interlock is released (i.e. the machine system restarts) by the interlock reset
mechanism. Failure to follow this warning results in significant harm to the machine
operators, including serious injury or death.

•

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

•

The GL-R has not undergone the model certification examination in accordance with
Article 44-2 of the Japanese Industrial Safety and Health Law. The GL-R, 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 GL-R is to be installed must be susceptible to an emergency
stop at all operating points during its operation cycle. Do not use the GL-R for machines
with irregular stop times.

•

Do not use the GL-R for power presses equipped with full-revolution clutches.

•

The GL-R 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-R 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-R is designed to protect people or objects from going into/approaching
detection 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-R must be installed only after ensuring the minimum safety distance between
the GL-R and the hazardous zone or hazard as established by the applicable regulations
in the country or region in which the GL-R is used. (e.g. EN ISO13855 (ISO 13855) in EU
countries)

•

Choose locations for the installation of the GL-R 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 beam axis
spacing (detection capability) from that of the transmitter. You must verify that the beam
axis spacing (detection capability) is the same between the transmitter and the receiver
when installing the GL-R.

•

The GL-R 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 GL-R.
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-R or to remain in position between the protective
zone of the GL-R and the hazardous zone or hazard. In a case where you install the GL-R
units in series (series connection), you must always 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 GL-R in accordance
with the pre-check test procedures, such as items specified in this user's manual, in
order to verify that the test pieces can be detected in all of the detection zones.

•

Interlock reset mechanisms (such as switches) must be installed so that the entire
hazardous zone can be checked by the responsible personnel. Interlock reset
mechanisms should not be accessible from within the hazardous zone.

•

Muting is a function to allow a temporary automatic suspension of the GL-R safety
functions while the GL-R 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-R 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 user's manual and the
requirements of the laws, rules, regulations and standards in the country or region in
which the GL-R 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 GL-R.

•

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-R 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-R. Therefore, additional safety measures are required for the entire
machine system on which the GL-R 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-R 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.

2

E GL-R-IM



Circuit design and wiring



Testing and maintenance



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 a member state of the
European Union.
•

Machinery Directive (2006/42/EC)
The GL-R is a safety component as established by the European Union's Machinery Directive
(2006/42/EC) Annex V. The GL-R complies with the following EN Standards and has been certified
by TÜV SÜD Product Service GmbH.
•

EN61496-1

Type 4 ESPE

•

EN61496-2

Type 4 AOPD

•

EN50178

•

EN61508, Part 1 to 4

SIL3

•

EN62061

SIL CL3

•

EN ISO13849-1

Category4, PLe

•

EMC Directive (2004/108/EC)
The GL-R complies with the following EN Standards
•

EN55011

Class A

•

EN61496-1

Type 4 ESPE

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



UL Certificate and North American Regulations

The GL-R complies with the following North American and international standards and has received
UL certification and C-UL certification. (CCN: NIPF/NIPF7, File No:E184802)

•

UL61496-1

Type 4 ESPE

•

UL61496-2

Type 4 AOPD

•

UL508

•

UL1998

The GL-R also complies with the following North American regulations.

•

FCC Part 15B

Class A Digital Device

•

ICES-003

Class A Digital Apparatus



Model Certification Examination as a 'Safety Devices for Presses and
Shearing Machines'

The GL-R has not obtained the model certification examination in accordance with Article 44-2 of the
Japanese Industrial Safety and Health Law. Therefore, the GL-R cannot be used in Japan as a
'Safety Devices for Presses and Shearing Machines' as established in Article 42 of that law.



Other standards

The GL-R has been designed in consideration of the following standards and regulations. For details
regarding the following standards, contact the third-party certification organization, such as UL or
TÜV.

•

EN60204-1

•

EN692

•

EN693

•

OSHA 29 CFR 1910.212

•

OSHA 29 CFR 1910.217

•

ANSI B11.1 - B.11.19

•

ANSI/RIA R15.06 - 1999

•

SEMI S2

•

'Guidelines for Comprehensive Safety Standards of Machinery', July 31, 2007, number 0731001
issued by Ministry of Health, Labor, and Welfare in Japan.

Standard set

•

GL-R transmitter (Transmitter) x 1

•

GL-R receiver (Receiver) x 1

•

Test piece x 1

GL-RF : With diameter of 14 mm and length of 200 mm
GL-RH : With diameter of 25 mm and length of 200 mm
GL-RL : The test piece (diameter: 45 mm) is not supplied. Please acquire on your own.

•

Instruction manual (this document) x 1

DANGER

•

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-R 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.

•

The customer is fully responsible for complying with the requirements for muting and/or
override. Those who use muting and/or override must fulfill all of the requirements
related to muting and/or override. KEYENCE accepts NO responsibility and NO liability
for any damage or any injury due to the unauthorized installation, usage or
maintenance, which are not specified in this user's manual, and/or due to
noncompliance with the laws, rules, regulations and standards in the country or region
in which the GL-R is used.

•

When the reduced resolution function is applied, the detection capability varies
according to your configuration. Make sure to accurately calculate the safety distance
according to the detection capability, and install the GL-R at a distance greater than or
equal to the minimum safety distance away from the hazardous zone or hazard. The
installation of additional safety measures, such as safeguarding, may be required if the
detection capability varies due to the configuration of reduced resolution. On your own
responsibility, you must perform the risk assessment based on your configuration of
reduced resolution in order to reduce the risk.

•

When the fixed blanking function is applied, a hazardous clearance that is not protected
by the GL-R may be generated between the obstacle and the GL-R. You must install an
additional safety measure such as a safeguard for this clearance.

•

Securely tighten mounting brackets and cable connectors used for the installation of
the GL-R in accordance with the torque values specified in this user's manual.

•

When optical synchronization system is applied and Channel A or B is configured, the
response time is longer than the other case. Make sure to accurately calculate the safety
distance according to the response time, and install the GL-R at a distance greater than
or equal to the minimum safety distance away from the hazardous zone or hazard.

DANGER

•

Always turn off the power to the GL-R when performing electrical wiring.

•

You must fulfill the electrical standards and regulations in the country or region in
which the GL-R is being used when you perform the electrical wiring.

•

To avoid the risk of electric shock, do not connect any of the GL-R inputs to DC power
sources outside of the range of 24 V DC + 20% or to any AC power source.

•

To avoid the risk of electric shock, be sure that any hazardous voltage is isolated from
all wiring of the GL-R with reinforced insulation or double insulation.

•

In order to fulfill the requirements in IEC61496-1, UL61496-1, EN61496-1 and UL508, the
power supply for the GL-R must fulfill the conditions listed below.

(a) A rated output voltage of 24 V DC (SELV, Overvoltage Category ) within ±20%.
(b) Double insulation or reinforced insulation between the primary and secondary

circuits.

(c) Output holding time of 20 ms or more.
(d) A power supply must fulfill the requirements of the electrical safety and

electromagnetic compatibility (EMC) regulations or standards in all countries
and/or regions where the GL-R is used.

Keyence Gl-r Manual Pdf

(e) A secondary circuit of power supply (output) must fulfill the requirements for

Class 2 Circuits or Limited Voltage/Current Circuits specified in UL508, if the
GL-R is used in the United States or Canada.

•

Do not install the electric wiring of the GL-R together with or in parallel with any high-
voltage electrical or power lines.

•

Keyence Gl R User Manual

Both OSSD outputs provided on the GL-R must be used to establish a safety-related
machine control system. Establishing a safety-related machine control system with just
one of the OSSD outputs cannot stop the machine due to an OSSD output malfunction
and may result in significant harm to the machine operators, including serious injury or
death.

•

When using PNP output type cables, do not cause a short-circuit between the OSSD and
+24V. Otherwise, the OSSDs keep staying at the ON-state and it causes a dangerous
situation.

•

When using PNP output type cables, be sure to connect the load between the OSSD and
0V to avoid a dangerous situation. If the load is incorrectly connected between the
OSSD and +24V, the logic of the OSSD operation will be reversed and the OSSD will
change to an ON state when the GL-R detects an interruption in the detection zone. This
is a dangerous situation.

•

When using NPN output type cables, do not cause a short-circuit between the OSSD and
0V. Otherwise, the OSSDs keep staying at the ON-state and it causes a dangerous
situation.

•

When using an NPN output type cable, be sure to connect the load between the OSSD
and +24V to avoid a dangerous situation. If the load is incorrectly connected between
the OSSD and 0V, the logic of the OSSD operation will be reversed and the OSSD will
change to an ON state when the GL-R detects the interruption in the detection zone.
This is a dangerous situation.

•

Regardless of whether the cables are PNP or NPN type, you must fulfill the requirements
of Clause 9.4.3 in IEC60204-1: 2005 for protection against maloperation due to earth
fault.

•

All outputs, other than OSSDs, are not allowed to be used as safety outputs for a safety-
related machine control systems. Usage of these functions as safety outputs may result
in significant harm to the machine operators, including serious injury or death.

•

The wait input is not allowed to be connected to the output from any components
comprising a part of the safety-related machine control system. If the wait input is
connected to the output of a safety component it may result in significant harm to the
machine operators, including serious injury or death.

•

The transmitter and receiver cables must be within the lengths specified in this user's
manual. Usage of cables longer than the specified length may cause the improper
operation of safety functions and may cause a dangerous situation.

DANGER

•

You must always perform the pre-check test in accordance with the checklist, after
maintenance, adjustment or alignment of the target machine or the GL-R and before the
machine startup.

•

If the GL-R does not operate properly when you perform a pre-check test in accordance
with the checklist specified in this user's manual, do not operate the machine.

Keyence Gl-r User Manual Pdf

•

You must periodically examine the machine to verify that all brakes, other stop
mechanisms, and control devices operate reliably and correctly in addition to checking
the GL-R.

•

Keyence Gl-r Manual

The responsible personnel must perform maintenance procedures as specified in this
user's manual to ensure safety to the machine and GL-R.

Gl T11r Manual