What does the K version of 1769-IQ16K add to the input module?

The K version has conformal coating. Its sixteen-input electrical arrangement remains the Compact I/O sinking/sourcing configuration.

How are the field commons organized on 1769-IQ16K?

The sixteen inputs form two groups of eight. Each field circuit must be connected to the common belonging to its group.

Will a 30 V field signal remain within the 1769-IQ16K rating at 60 °C?

No. The permitted input range is 10–30 V DC at 30 °C but 10–26.4 V DC at 60 °C, so 30 V exceeds the upper-temperature limit.

Which sensor leakage limits prevent a false on-state at 1769-IQ16K?

The off-state input must remain at or below 5 V DC and 1.5 mA. Compare the sensor’s leakage and the complete wiring circuit with both limits.

Can 1769-IQ16K capture a pulse shorter than its input delay?

Reliable capture of such a pulse must not be assumed. Both on and off delays can reach 8 ms, and the controller’s update and scan timing add further response time.

How much 5.1 V bus capacity should be reserved for 1769-IQ16K?

Reserve 115 mA on the 5.1 V backplane rail for the module and include its 3.55 W maximum dissipation in the panel thermal calculation.

Which terminal-block torque values apply when servicing 1769-IQ16K?

Tighten the wiring terminals to 0.68 N·m and the terminal-block retaining screws to 0.46 N·m. These are separate fastening requirements.

Where is electrical isolation provided in 1769-IQ16K?

Isolation is provided from the input groups to the bus and between the two input groups. The working-voltage rating is 75 V DC with Class II reinforced insulation.

1769-IQ16K

Name: 1769-IQ16K
Brand: Allen-Bradley
SKU: 1769-IQ16K

Digital Input Module

Product image is representative; revision or series may vary. Contact us to request a specific version.

Product Describe：

Allen-Bradley 1769-IQ16K is a conformally coated Compact I/O module with sixteen 24 V DC sinking/sourcing inputs arranged in two groups of eight.

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Technical specifications for 1769-IQ16K

Manufacturer:

Allen-Bradley
Product Category:

PLC Systems
Spare Part Number:

1769-IQ16K
Estimated shipping dimensions:

4×8.6×10.8cm
Weight:

0.15 kg
Tariff Code:

8537101190
Counliy of origin:

USA
Input channels:

16
Input grouping:

2 groups of 8
Nominal input voltage:

24 V DC
Operating input voltage:

10–30 V DC at 30 °C; 10–26.4 V DC at 60 °C
On/off delay:

8 ms maximum each
5.1 V bus current:

115 mA
Maximum dissipation:

3.55 W
Off-state voltage:

5 V DC maximum
Off-state current:

1.5 mA maximum
Minimum on-state voltage:

10 V DC
Minimum on-state current:

2 mA
Nominal input impedance:

3 kΩ
Maximum inrush current:

250 mA
Power-supply distance:

8 modules
Terminal torque:

0.68 N·m
Terminal retaining screw:

0.46 N·m

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Information

Overview Manuals Common Applications Product Precautions

Allen-Bradley 1769-IQ16K converts discrete field states into controller input data while its two input groups provide separate commons for the connected circuits.

Accepts both sinking and sourcing DC field circuits.
Uses an 8 ms maximum delay for both on and off transitions.
Draws 115 mA from the 5.1 V backplane supply.
Provides input-to-bus and group-to-group electrical isolation.

Sensor leakage and residual off-state voltage must remain below the input’s off-state limits. At elevated enclosure temperatures, the permitted input-voltage ceiling is reduced, so a nominal 24 V circuit must be checked at its actual operating conditions.

Important Notice: Keep each field common assigned to its intended group. Confirm that the controller input state follows every tested field transition before returning the circuit to service.

Allen-Bradley 1769-IQ16K Manuals & Downloads

Allen-Bradley 1769-IQ16K Manufacturer Technical Reference — Selected Pages (PDF)Allen-Bradley 1769-IQ16K Installation & Commissioning Guide (PDF)

Use the technical reference for ratings and interface details, and the field guide for installation sequence, commissioning and fault isolation.

DC sensor acquisition

Collects discrete signals from compatible 24 V field circuits using the correct sinking or sourcing arrangement.

Grouped common wiring

Separates sixteen field inputs into two common groups for organized circuit distribution.

Machine state monitoring

Reports limit-switch and contact-state changes where the input delay meets the application timing.

Coated Compact I/O assemblies

Provides the K-version coating within a compatible 1769 I/O installation.

Installation and service checks for Allen-Bradley 1769-IQ16K.

Isolate backplane and field power before removing the terminal block.

Identify both input commons and preserve their group assignments.

Check the maximum field voltage at the highest expected ambient temperature.

Keep sensor leakage within both off-state limits.

Use copper conductors of the permitted gauge and temperature rating.

Apply the separate terminal and retaining-screw torque values.

Keep the module within eight positions of its Compact I/O power supply.

Exercise all sixteen channels and confirm their controller indications.

Technical notes

Include the module’s input delay in the complete field-to-controller response calculation. Check off-state leakage and the high-temperature voltage ceiling before accepting the sensor circuit.

FAQ View All FAQ

What does the K version of 1769-IQ16K add to the input module?

The K version has conformal coating. Its sixteen-input electrical arrangement remains the Compact I/O sinking/sourcing configuration.
How are the field commons organized on 1769-IQ16K?

The sixteen inputs form two groups of eight. Each field circuit must be connected to the common belonging to its group.
Will a 30 V field signal remain within the 1769-IQ16K rating at 60 °C?

No. The permitted input range is 10–30 V DC at 30 °C but 10–26.4 V DC at 60 °C, so 30 V exceeds the upper-temperature limit.
Which sensor leakage limits prevent a false on-state at 1769-IQ16K?

The off-state input must remain at or below 5 V DC and 1.5 mA. Compare the sensor’s leakage and the complete wiring circuit with both limits.

Can 1769-IQ16K capture a pulse shorter than its input delay?

Reliable capture of such a pulse must not be assumed. Both on and off delays can reach 8 ms, and the controller’s update and scan timing add further response time.
How much 5.1 V bus capacity should be reserved for 1769-IQ16K?

Reserve 115 mA on the 5.1 V backplane rail for the module and include its 3.55 W maximum dissipation in the panel thermal calculation.
Which terminal-block torque values apply when servicing 1769-IQ16K?

Tighten the wiring terminals to 0.68 N·m and the terminal-block retaining screws to 0.46 N·m. These are separate fastening requirements.
Where is electrical isolation provided in 1769-IQ16K?

Isolation is provided from the input groups to the bus and between the two input groups. The working-voltage rating is 75 V DC with Class II reinforced insulation.

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