Ac input expansion block specifications – Rockwell Automation 1790-TXXXX Digital Expansion Terminal Block Compact Block LDX I/O  User Manual

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Publication 1790-IN005B-EN-P - April 2003

AC Input Expansion Block Specifications

1790-T8AOX

Inputs per expansion block

8 points non-isolated

On-state voltage range

79V ac minimum
110V ac nominal
132V ac maximum

Input impedance

18K

On-state current

9mA maximum @132V ac

Off-state voltage

45V ac maximum

Input signal delay

10ms off to on
30ms maximum on to off

Indicators

8 green input status

Common type

8 points/8COM

General Specifications

External AC power supply

Supply voltage - 110V rms, 60Hz
Voltage range - 85-132Vrms, 47-63Hz
Power dissipation - 3W @ 132Vac

Isolation

I/O to logic: photocoupler isolation
Isolation voltage: 1250V ac rms/V ac
Field power: non-isolation

Wiring

Terminal block (M3.0)
- screw torque: 7 inch-pounds
maximum (use copper or copper-clad
aluminum conductors

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