Intelligent Technologies (
IT.
) D77A I/O Module Products
MN05002001E
For more information visit: www.EatonElectrical.com
19
Table 21: D77A-DI8RQ8 Combination Module Specifications
* A 12V transition range exists between 6V and 18V.
Figure 13: D77A-DI8RQ8 Combination Module Diagrams
a) D77A-DI8RQ8 Module
b) Internal DC Input Circuit
c) Internal Relay Output Circuit
Catalog Number
D77A-DI8RQ8
DC Sink/Source Input
Relay Output
Nominal Voltage
24V DC
—
Operating Voltage
18-30V DC
0-140V AC
0-30V DC
Number of Points
8
8
Points per Common
2
2
Signal Delay
5 ms
—
OFF State Voltage
0-6V DC *
—
ON State Voltage
18V-30V DC
—
Nominal Current
5 mA
—
Signal Delay
—
Relay ON Time 3 ms
Relay OFF Time 6 ms
Max. Current/Point (Resistive)
—
3A
Max. Current/Module (Resistive)
—
24A
Mechanical Life
—
1,000,000 Operations
Electrical Life
—
100,000 Operations
QCPort Current Draw
121 mA
Isolation
1.5kV
Terminal Screw Torque
4.5 inch-pounds (0.51 Newton-meters)
IN
IN
COM
Ø
1
CØ
2
3
C1
4
5
C2
6
7
C3
V D C
V D C
V D C
V D C
D77A-028
a
b
c
OUT
OUT
C
CR
CR
V A C/DC
V A C/DC
V A C/DC
V A C/DC
Ø
1
C4
2
3
C5
4
5
C6
6
7
C7
CR
CR
CR
CR
CR
CR
Summary of Contents for D77A
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