KEYENCE GL-RHG Series - Manual (Page 31)

2-7 GL-RHG-M-NO2-E
Fu
nct
ion
s and
Feat
ures
2
2-5
Temporary Suspension of Safety Function
Muting function
The muting function is used to temporarily suspend the GL-RHG's safety functions while the GL-RHG sys-
tem meet the specified condition for muting. Before this function can be used, the outputs from the muting
devices must be connected to the muting input terminal on the GL-RHG.
In addition, the configuration software provides the user with the opportunity to select the beam axes to be in
the muted condition.
See
"Functions" (page 2-4) for the information of wiring system and cable type to activate this function.
Point For more specific examples of operations or for information about installation when using the
muting function.
"Example: Muting function with 2 muting devices (Sensors)" (page 2-10)
DANGER
• Since the muting function temporarily suspends the safety functions of the GL-RHG,
additional safety measures are required for the entire machine on which the GL-RHG is
installed. This is to ensure safety while the muting function is activated.
• The 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 the muting devices (such as sensors or switches), the following
conditions must be fulfilled.
(1) Muting devices must be installed so that the muting function cannot be activated if the
machine that the GL-RHG is on is in the middle of a hazardous cycle or period.
(2) Muting devices must be installed so that the muting function cannot be activated by
personnel approaching the protective zone of the GL-RHG.
• Only responsible personnel should be allowed to install or wire the muting function or
muting devices.
• The muting devices must be installed in such a way that only responsible personnel can
change the installation or orientation by requiring special tools or keys to access the
devices.
• The whole responsibility for use of the muting function must rest with the customer.
Those who use the muting function must fulfill all of the requirements related to muting
functions. KEYENCE accepts NO responsibility or liability for any damage or injury due to
unauthorized installation, unauthorized usage or maintenance methods that are not
specified in this user's manual and/or due to noncompliance with the laws, rules,
regulations and standards set fourth by the country or region in which the GL-RHG is
used.
• 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 the muting lamp, you must fulfill the requirements
because you are fully responsible for installation of the muting lamp.