KEYENCE GL-RHG Series - Manual (Page 4)

4 E GL-RHG-IM
 Conditions for initiation of muting
Muted condition is initiated if all of the following conditions are met:
•
Muting input 2 turns ON within 0.04 to 3 seconds after muting input 1 turns ON
• GL-RHG detects no interruption in the protective zone
• OSSD is in the ON state and remains for 0.5 seconds or more.
 Conditions for termination of muting
Muted condition is terminated if one of the following conditions is met:
•
Either of the muting inputs goes to the OFF state for at least 5 ms.
• Light curtain goes into the error condition
• Wait input goes to ON state
• The power supply is interrupted or restored.
• Maximum muting period of approx. 5 minutes has been passed.
 Override function
During normal operation, the OSSD goes to an OFF state if the muting function is deactivated and an
interruption remains in the protective zone of the GL-RHG. The OSSD OFF state will remain until the
obstruction is removed.
Override function allows a temporary manual suspension of the GL-RHG safety functions.
This makes it possible to remove the obstruction remaining in the protective zone of the GL-RHG.
(Machine is able to be manually operated on a temporary basis because the safety function of the
GL-RHG is temporarily suspended.)
 Conditions for initiation of override
Override function is initiated if all of the following conditions are met and the wait input goes to the ON
state within 0.04 s to 1 s after the override input turns ON state.
•
GL-RHG is not in the error condition.
• GL-RHG detects interruption in the protective zone. (One or more beam axis is blocked.)
• OSSD is OFF state. (including interlock condition)
• Either of muting inputs, or both, turns ON state
 Conditions for termination of override
Override function is terminated if one of the following conditions is met:
•
All of muting inputs turn OFF.
• Either the override input or wait input, or both, turn OFF.
• Light curtain goes to into the error condition
• Maximum override period of approx. 60 seconds has been passed.
Installation
 Overview
 Cable installation
 Cable connection to the lower part of the GL-RHG (The unit connection
cable and extension cable)
Reference The unit connection cable and extension cable can be used for both the transmitter and
receiver.
 Cable connection to the upper part of the GL-RHG (The series connection
cable)
Reference The series connection cable can be used on both the transmitter and receiver.
 Attaching the Cable Protection Pipe
Point When using GL-RHG as a press machine and sharing machine (paper cutting machine)
safety device in Japan, make sure to use cable protection pipes.
1
Cut the protection pipes according to the length of cables for use.
2
Insert the protection pipe to the cable. The protection pipe has a slit. Open the slit and insert
the cable.
 Cable protection pipe attaching example
 Installation of the GL-RHG unit
Point Connect all cables to the GL-RHG before installing the mounting bracket to the GL-RHG
unit.
The installation method differs according to the type of mounting bracket.
For details, see the manual included in the package of mounting bracket or "GL-RHG Series User's
Manual".
 Light interference prevention method
 Light interference prevention function
• When wire synchronization system is applied
The light interference prevention function automatically reduces mutual interference between
GL-RHG units.
• When optical synchronization system is applied
The light interference prevention function is applied according to Channel configuration.
The mutual interference is reduced between GL-RHG units with Channel A and Channel B.
The mutual interference is not reduced between GL-RHG units with Channel 0 and Channel 0,
GL-RHG units with Channel 0 and Channel A, or GL-RHG units with Channel 0 and Channel B.
Channel is configured by using the setting switch at the lower part of front side of GL-RHG units.
Configure the same Channel to the setting switch on both the transmitter and receiver.
For more information about the setting switch, see also
"Part Description" (page 2).
When the GL-RHG is in series connection, the setting switch configuration of the main unit is
applied regardless of the setting switch configuration of the sub unit.
"Wiring system" (page 3)
 Series connection
Connecting GL-RHG in series can prevent mutual interference.
DANGER
• Do not remove the black gasket installed on the connector. Without this gasket the
requirement of IP65 and IP67 cannot be fulfilled.
• Securely tighten the cable connector and end cover with the screw in accordance with
the torque values specified in this manual. Without proper installation, the requirement
of IP65 and IP67 cannot be fulfilled.
NOTICE
• Connect the unit connection cable to the connector port on the lower part of the
GL-RHG. Removing the end cover on the upper part of the GL-RHG and connecting the
unit connection cable may result in GL-RHG damage.
• The end cover must be connected to the connector except when the series cable is
connected. If both the end cover and series cable are not connected to the connector, an
error occurs.
 Optical/wire
synchronization system  One-line
system
 Series connection cable
 Unit connection cable
 Unit connection cable (for extension
use) + Extension cable
* The unit connection cable can not be
connected on the upper part of the GL-RHG.
M3 cross slot screws (Recommended tightening torque of 0.3 N•m)
DANGER
When the GL-RHG units are wired by the one-line system, the end cover removed from the
upper part of the GL-RHG must be secured to the lower part with the screw.
(Recommended tightening torque of 0.3 N•m)
Without the end cover, the requirement of IP65 and IP67 cannot be fulfilled.
DANGER
The response time varies according to the configuration of Channel.
"Response time (OSSD)" (page 8)
1
M3 cross slot screws
2
M3 cross slot screws
(Recommended tightening torque of 0.3 N•m)
End cover
Protection pipe
Cable
• Main unit connection cable • Connection cable