Technical data

February 2007
CA05001001K For more information visit: www.EatonElectrical.ca
45
PLC, I/O & Communications Products
IT. Connect
Remote I/O Modules (D77A Series)
DC Input DC Output Module — D77A-DI8DQ8
Table 57. Specifications
1
Resistive current at 55°C.
Table 58. Operating Voltage Range — Input
Table 59. Operating Voltage Range — Output
Figure 56. Wiring Diagram — DC Input DC Output
Figure 57. Circuit Diagram — DC Input DC Output
Description Specification
DC Input DC Sink Output
Nominal Voltage 24V DC
Operating Voltage 18 – 30V AC
Number of Points 8
Points per Common 2 4
Signal Delay 5 mS
(programmable
to 250 mS)
OFF-State Voltage < 6V DC
ON-State Voltage > 18V DC
Nominal Current 5 mA
Signal Delay 1 mS
Max. Current per Point
1
.75A
Max. Current per
Module
1
—6A
Surge Current (10 mS) 4A
OFF-State Leakage 1 mA
Isolation 1,500V
Module Current Draw 99 mA
OFF State Transition Region ON State
0 8V DC 8V DC 18V DC 18V DC 30V DC
Transition Region ON State
0 18V DC 18V DC 30V DC
0CR
1
2
3
+
V DC
4
5
6
7
+
0
1
C0
V DC
2
3
C1
V DC
4
5
C2
V DC
6
7
C3
V DC
CR
CR
CR
COM
CR
V DC
CR
CR
CR
COM
Out
In
In
Com
Out
+24
C