Eaton Electrical user manual DC Input Module Specifications, Catalog Number D77A-DI8 D77A-DI16

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

DC Input Module Specifications

Table 14: DC Input Module Specifications

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	4.5 inch-pounds
	(0.51 Newton-meters)	(0.51 Newton-meters)

* A 12V transition range exists between 6V and 18V.

	Ø		Ø		8
	1		1		9
V DC	CØ	V DC	CØ	V DC	C4
	2		2		1 0	IN
	3		3		11
V DC	C1	V DC	C1	V DC	C5
	4		4		1 2	IN
	5		5		1 3	COM
	C2		C2		C6
V DC		V DC		V DC
	6		6		1 4	c
	7		7		1 5
V DC	C3	V DC	C3	V DC	C7
a				b		D77A-008

Figure 4: DC Input Module Diagrams

a)D77A-DI8, Eight-point Module

b)D77A-DI16, Sixteen-point Module

c)Internal Circuit

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