User manual

Intelligent Technologies (IT.) D77A I/O Module Products
MN05002001E
For more information visit: www.EatonElectrical.com 9
DC Input Module Specifications
Table 14: DC Input Module Specifications
* A 12V transition range exists between 6V and 18V.
Figure 4: DC Input Module Diagrams
a) D77A-DI8, Eight-point Module
b) D77A-DI16, Sixteen-point Module
c) Internal Circuit
Catalog Number D77A-DI8 D77A-DI16
Type Sink/Source Sink/Source
Nominal Input Voltage 24V DC 24V DC
Operating Voltage 18 – 30V DC 18 – 30V DC
Number of Inputs 8 16
Points per Common 2 2
Signal Delay 5 ms 5 ms
OFF State Voltage 0 – 6V DC * 0 – 6V DC *
ON State Voltage 18V – 30V DC 18V – 30V DC
Nominal Input Current 5 mA 5 mA
QCPort Current Draw 35 mA 63 mA
Isolation 1.5kV 1.5kV
Terminal Screw Torque 4.5 inch-pounds
(0.51 Newton-meters)
4.5 inch-pounds
(0.51 Newton-meters)
IN
IN
COM
Ø
1
CØ
2
3
C1
4
5
C2
6
7
C3
VDC
VDC
VDC
VDC
Ø
1
CØ
2
3
C1
4
5
C2
6
7
C3
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
8
9
C4
10
11
C5
12
13
C6
14
15
C7
D77A-008
a
b
c