Safety Relay User Manual Owner's manual
Rockwell Automation Publication 440C-UM001C-EN-P - November 2014 89
Plug-in Modules Chapter 12
2080-IQ4
The 2080-IQ4 has four sinking inputs. The four COM connections, A3, A4, B3,
and B4 are internally connected. At least one COM connection must be
connected to 24V Com (without it, the inputs do not turn on).
Figure 109 - 2080-IQ4 Schematic Showing Four Standard Input Signals
2080-OB4
The 2080-OB4 has four sourcing outputs. Terminals B3 and B4 are internally
connected; one of these terminals must be connected to +24V DC. Terminals A3
and A4 are internally connected; one of these terminals must be connected to
24V Com.
Figure 110 - 2080-OB4 Schematic Showing Four Standard Output Signals
COMI-02 I-03
A1 A2
B5
B2B1 B3 B4 B6
COM COMI-00 I-01
2080-IQ4
A5
A3 A4 A6
COM NU NU
NU NU
+24V DC
24V Com
NU NU
A1 A2
B5
B2B1 B3 B4 B6
NU NU
2080-OB4
A5
A3 A4 A6
-24DC-24DC O-02 O-03
+24DC+24DC O-00 O-01
+24V DC
24V Com