Rockwell 1771-IVN DC Input Module 32 Point Brand New

Availability: 20 left in stock

Product Overview The Allen-Bradley 1771-IVN serves as a high-density interface between field-side DC control devices and the PLC-5 processor. This module converts...

SKU: 1771-IVN

Manufacturer: Allen Bradley
Product No.: 1771-IVN
Product Type: Digital Input Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 600g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The Allen-Bradley 1771-IVN serves as a high-density interface between field-side DC control devices and the PLC-5 processor. This module converts 32 discrete DC signals into logic-level data that the processor can interpret. It utilizes a "Low True" logic configuration, meaning the module senses an "On" state when the input voltage drops toward the return path. Designed for high-performance automation, the 1771-IVN provides the high point count necessary to reduce chassis space requirements in complex control architectures.

Technical Specifications

We supply this module as 100% Brand New and factory-sealed to ensure maximum reliability and strict adherence to original technical tolerances.

Specification	Details
Number of Inputs	32 Inputs (4 sets of 8)
Voltage Category	10-60 Volts DC Source (Sink Load)
Operating Voltage	10-30 Volts DC
Input Logic	Low True
Backplane Current	280 Milliamperes
Max Off-State Current	1.7 Milliamperes
Signal Delay (On)	6 ms (+/- 2 ms) Digital Filter
Signal Delay (Off)	50 ms (Typical)
Compatible Wiring Arm	1771-WH
Operating Temperature	0 to 60 degrees C (32 to 140 degrees F)

Engineering Advantages

The 1771-IVN provides critical advantages for engineers maintaining or expanding high-density PLC-5 systems:

Footprint Efficiency: By offering 32 points in a single slot, this module doubles the capacity of standard 16-point cards. This allows you to scale your system without purchasing additional 1771-A3B or 1771-A4B chassis.
Enhanced Signal Integrity: Optical isolation protects the sensitive PLC backplane from electrical noise, voltage transients, and field-side surges. This physical separation prevents field faults from cascading into the processor rack.
Streamlined Maintenance: The module works with the 1771-WH removable wiring arm. This design allows technicians to replace a faulty module without disconnecting any field wiring, reducing Mean Time to Repair (MTTR) from hours to minutes.
Real-Time Diagnostics: Individual LED status indicators on the front panel display the state of every channel. Engineers can verify field signals at a glance without using a programming terminal, significantly accelerating the commissioning process.

FAQs

What does "Low True" logic mean for the 1771-IVN?

"Low True" signifies that the input is active (Logic 1) when the input signal is at a low voltage level relative to the supply. Effectively, the module senses current flow when the field device completes the circuit to the common/ground side.

Can I use the 1771-IVN with 48V DC signals?

While the voltage category lists up to 60V DC, the nominal operating voltage for the 1771-IVN is 10-30V DC. Operating continuously at 48V or higher may exceed thermal dissipation limits or damage the internal optical couplers. Always verify your field voltage stays within the 10-30V range for stable operation.

Does the 1771-IVN require an external power supply?

The module draws its 280 mA logic power from the 1771 chassis backplane. However, the field-side sensors and switches must receive power from an external DC power source suitable for your specific application.

How do I handle the high density of wiring for 32 points?

We strictly recommend using the 1771-WH wiring arm. This arm features labeled terminals specifically spaced to handle the 32-point density. Use 14-gauge or 16-gauge wire to ensure the bundle fits within the wiring arm cover.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.