Input specifications – Rockwell Automation 1762-IQ8 MicroLogix DC Input Module User Manual

Page 12

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MicroLogix™ 1762-IQ8 DC Input Module

1762-IN004A-US-P

Input Specifications

Specification

1762-IQ8

Voltage Category

24V dc (sink/source)

(1)

(1)

Sinking/Sourcing Inputs - Sourcing/sinking describes the current flow between the I/O module and the
field device. Sourcing I/O circuits supply (source) current to sinking field devices. Sinking I/O circuits are
driven by a current sourcing field device. Field devices connected to the negative side (DC Common) of
the field power supply are sinking field devices. Field devices connected to the positive side (+V) of the
field supply are sourcing field devices.

Operating Voltage Range

10 to 30V dc at 30°C (86°F)
10 to 26.4V dc at 55°C (131°F)

Number of Inputs

8

Bus Current Draw (max.)

50 mA at 5V dc (0.25W)

Heat Dissipation (max.)

3.7 Total Watts

Signal Delay (max.)

On Delay: 8.0 ms
Off Delay: 8.0 ms

Off-State Voltage (max.)

5V dc

Off-State Current (max.)

1.5 mA

On-State Voltage (min.)

10V dc

On-State Current

2.0 mA min. at 10V dc
8.0 mA nominal at 24V dc
12.0 mA max. at 30V dc

Inrush Current (max.)

250 mA

Nominal Impedance

3K

IEC Input Compatibility

Type 1+

Power Supply Distance Rating

6

Isolated Groups

Group 1: inputs 0 to 7 (internally connected commons)

Input Group to Backplane
Isolation

Verified by one of the following dielectric tests: 1200V ac for 1
sec. or 1697V dc for 1 sec.
75V dc working voltage (IEC Class 2 reinforced insulation)

Vendor I.D. Code

1

Product Type Code

7

Product Code

96

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