KEYENCE GL-RHG Series - Manual (Page 5)

3 GL-RHG-M-NO0-E
 Installation
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 detection 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 user's 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 user's 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 detection 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 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.
• 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-RHG is used.