Channel analog voltage input module – Rockwell Automation 1790D-NOV2/TNOV2 CompactBlock LDX Analog Modules User Manual

Page 67

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Publication 1790-UM001A-EN-P - March 2002

Specifications A-5

4-Channel Analog Voltage Input Module

1790D-TN4V0

Inputs per module

4 channel single-ended, non-isolated

Input Voltage

0-10V

Resolution

12 bits-unipolar
1/4096 maximum
2.44mV/bit

Converted Data

Binary data
0000 to 0fff (max scale)

Conversion Time

10ms/channel

Overall accuracy

0.2% Full scale @0°-55°C

Calibration

None required

Input Impedance

500K

minimum

Insulation Resistance

20M

minimum @ 250V dc (between insulated circuits)

General Specifications

DeviceNet Power

Supply voltage - 24V dc nominal
Voltage range - 11-28.8V dc
Power dissipation - 1.2W maximum @ 28.8V dc

Field Power

Supply Voltage - 24Vdc nominal
Voltage Range - 21.6-26.4V dc (+10%)
Power Dissipation - 1.5W maximum @26.4V dc

Isolation

I/O to logic: photocoupler isolation
Isolation voltage: Type Test 1250V ac rms for 60 seconds
DeviceNet to logic: non-isolated
Field power: non-isolated

Indicators

4 red/green I/O status

Wiring

Terminal block connector
Screw torque: 7 inch pounds maximum

IMPORTANT: This analog base module can accommodate a maximum of two discrete
expansion modules.

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