EMX IRB-RET - Page 5

EMX Industries, Inc. Tech support: 216-834-0761 5/8
IRB-RET_Rev2.0_080619 technical@emxinc.com
Configuration Table
• Must use 6-40VDC for pulse monitoring.
• The relay contacts labeled on the terminals and the references to them in these instructions are
shown in the energized state, no obstruction. (Dark ON setting – normally open (NO) contact closes
when the beam is unobstructed.)
• Pulse configurations require current limiting in the operator. The IRB-RET will pulse 300Hz when not
obstructed and 0Hz when obstructed.
• Four-wire output provides an emitter and collector connection to the operator. The emitter is
generally connected to the circuit common (ground) and the collector is typically an open-collector
output using a pull-up resistor to low-voltage DC power.
Monitoring
Method
Wiring
Diagram
DIP Switch Settings
Output
Connections
Power
Connection
Jumpers Installed
SW1
SW2
SW3
SW4
VRX
VTX
JP2
JP4
JP5
JP6
Normally
Closed
A
OFF
OFF
OFF
ON
NC, COM
VRX
Factory
Set
10K
disabled
4W
10K Resistive
Termination
B
OFF
OFF
OFF
ON
NO, COM
VRX
Factory
Set
10K
enabled
4W
Normally
Closed:
Power Cycle
Transmitter
Only
C
OFF
OFF
OFF
ON
NC, COM
VRX
VTX
Separate
Power
RX and
TX
10K
disabled
4W
Two-Wire
Pulse (2
Frequency:
300Hz, 0Hz)
D
ON
OFF
OFF
ON
VRX
DC
Power
only
to
VRX
Factory
Set
10K
disabled
2W
Two-Wire
Pulse (3
Frequency:
300Hz, 2Hz,
0Hz)
D
OFF
ON
OFF
ON
VRX
DC
Power
only
to
VRX
Factory
Set
10K
disabled
2W
Four-Wire
Pulse (2
Frequency:
300Hz, 2Hz,
0Hz)
E
ON
OFF
OFF
ON
E, C
DC
Power
only
to
VRX
Factory
Set
10K
disabled
4W
Four-Wire
Pulse (3
Frequency:
300Hz, 2Hz,
0Hz)
E
OFF
ON
OFF
ON
E, C
DC
Power
only
to
VRX
Factory
Set
10K
disabled
4W