KEYENCE GL-RHG Series - Manual (Page 46)

2-22 GL-RHG-M-NO2-E
Fu
nct
ion
s and
Feat
ures
2
2-6
Wait Input Function
The wait input is a NON-SAFETY-RELATED function.
This function puts the OSSD into an OFF state through a signal from an external device (non safety-
related device).
See
"Functions" (page 2-4) for the information of wiring system and cable type to activate this function.
 How to use
(1) The signal from the external non safety-related control device is connected to the wait input. When
this signal is ON, the OSSD of the GL-RHG goes to OFF.
(2) This function is useful for testing and making sure that the machine which the GL-RHG is installed on
can stop within the specified period of time when the OSSD goes into an OFF state.
Point The OSSD goes into an OFF state when the wait input is activated while the GL-RHG is in the
muted condition. The GL-RHG returns to normal operation after the wait input is deactivated.
"Muting function" (page 2-7)
 Wiring
Point The switch must be rated at 24 V DC, 2 to 3 mA.
 Time chart
Reference For the GL-RHG, the 7-segment display indicates "" if the wait input is activated.
See
"Function Indicators and 7-segment Display" (page 5-2)
DANGER
The wait output is not allowed to be connected to the safety output provided from the
safety-related control system. Connection to the safety output of the safety-related control
system may result in significant harm to the machine operators including serious injury or
death.
When using a PNP output type cable When using an NPN output type cable
Brown
White
Blue
GL-RHG
Transmitter
+24 V
0 V
Short-circuit current: 2.5 mA
Brown
White
Blue
+24 V
0 V
Short-circuit current: 2.5 mA
GL-RHG
Transmitter
Wait input
GL-RHG
OSSD
60 ms max. 60 ms max.
ON
OFF
ON
OFF
No interruption
Interruption