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Intelligent Technologies (IT.) D77A I/O Module Products
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MN05002001E
Analog Input Module Specifications
Table 15: D77A-NI4 Analog Input Module Specifications
(See Figure 5 for circuit diagram)
Catalog Number
D77A-NI4
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
Note: Input filter settings affect the
effective resolution of the channels.
Voltage Resolution Current Resolution
50Hz 0-5VDC 14 bit 0-20mA 14 bit
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
+/– 0.4% Full Scale @ 0-55°C
+/– 0.45% Full Scale @ 25°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)