Eaton Electrical D77A user manual Input Specifications, AC Input Module Specifications

Intelligent Technologies (IT.) D77A I/O Module Products

Input Specifications

AC Input Module Specifications

Table 13: AC Input Module Specifications

Catalog Number	D77A-AI8	D77A-AI16
Nominal Input Voltage	120V AC, 50/60 Hz	120V AC, 50/60 Hz
Operating Voltage	80 – 140V AC, 50/60 Hz	80 – 140V AC, 50/60 Hz
Number of Inputs	8	16
Points per Common	2	2
OFF State Voltage	0 – 30V AC *	0 – 30V AC *
ON State Voltage	80V AC – 140V AC	80V AC – 140V AC
Nominal Input Current	15 mA	15 mA
Signal Delay	8.33 ms @ 60 Hz / 10 ms @ 50 Hz	8.33 ms @ 60 Hz / 10 ms @ 50 Hz
QCPort Current Draw	33 mA	46 mA
Isolation	1.5kV	1.5kV
Terminal Screw Torque	4.5 inch-pounds	4.5 inch-pounds
	(0.51 Newton-meters)	(0.51 Newton-meters)

* A 50V transition range exists between 30V and 80V.

Ø	Ø	8
1	1	9
V A C CØ	V A C CØ	V A C C4	COM
2	2	1 0
3	3	11	IN
V A C C1	V A C C1	V A C C5
4	4	1 2
5	5	1 3
V A C C2	V A C C2	V A C C6	IN
6	6	1 4	c
7	7	1 5
V A C C3	V A C C3	V A C C7
a		b	D77A-006

Figure 3: AC Input Module Diagrams

a)D77A-AI8, Eight-Point Module

b)D77A-AI16, Sixteen-Point Module

c)Internal Circuit

8 For more information visit: www.EatonElectrical.com MN05002001E