Eaton Electrical D77A user manual Analog Input Module Specifications

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

Analog Input Module Specifications

Table 15: D77A-NI4 Analog Input Module Specifications

		D77A-NI4
Catalog Number		Voltage Input		Current Loop Input
Voltage Input		0 – 5V, 1 – 5V, 0 – 10V DC		—
Current Input		—		4 – 20 mA, 0 – 20 mA
Input Type		Single End, Uni-polar
Resolution		Voltage	Resolution	Current	Resolution
Note: Input filter settings affect the	50Hz	0-5VDC	14 bit	0-20mA	14 bit
effective resolution of the channels.		0-10VDC	14 bit	4-20mA	14 bit
		1-5VDC	14 bit
	60Hz	0-5VDC	14 bit	0-20mA	14 bit
		0-10VDC	14 bit	4-20mA	14 bit
		1-5VDC	14 bit
	250Hz	0-5VDC	14 bit	0-20mA	12 bit
		0-10VDC	13 bit	4-20mA	12 bit
		1-5VDC	12 bit
	500Hz	0-5VDC	9 bit	0-20mA	9 bit
		0-10VDC	10 bit	4-20mA	9 bit
		1-5VDC	9 bit
Input Full Scale Range		0 – 10.5V or 0 – 5.25V		0 – 21 mA
Maximum Overload at Input Terminal		30VDC		32 mA
Number of Channels		4
Selectable Input Filter Frequency		50Hz, 60Hz, 250Hz, 500Hz
Input Group-to-Bus Isolation		500 VAC for 60 seconds
Common Mode Rejection		Greater than 60 db @ 50/60 Hz
Normal Mode Rejection ratio		-50 db @ 50/60 Hz
Accuracy		+/– 0.3% Full Scale @ 25°C		+/– 0.45% Full Scale @ 25°C
		+/– 0.4% Full Scale @ 0-55°C		+/– 0.5% Full Scale @ 0-55°C
Input Impedance		15M ohm		250 ohm
Operating Temperature		0–55°C
Status LED Indication		Module Status
QCPort Current Draw		60 mA
Terminal Screw Torque		4.5 inch-pounds (0.51 Newton-meters)

(See Figure 5 for circuit diagram)

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