PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-OVN PLC-5 digital output module provides DC sink switching in 1771 I/O systems. This module features 32 sinking outputs arranged into four groups of eight channels each. It operates within a direct-current supply range from 10 to 30 Volts DC. The rated voltage category spans from 10 to 32 Volts DC sink. The hardware mounts directly into standard 1771 I/O chassis slots.
Each individual output channel supports a continuous current limit of 0.5 Amperes. Maximum continuous current capacity reaches 8 Amperes across the entire module. The unit draws 330 milliamperes of backplane current from the chassis power supply. Conformal coating protects internal electronic components against harsh industrial environments. Field terminations connect through compatible 1771-WH or 1771-WN wiring arms.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Number of Outputs | 32 (4 sets of 8) |
|---|
| Voltage Category | 10-32 V DC, Sink |
|---|
| DC Operating Voltage Range | 10-30 V DC |
|---|
| Backplane Current | 330 mA |
|---|
| Max Continuous Current Per Output | 0.5 A |
|---|
| Max Continuous Current Per Module | 8 A |
|---|
| Typical DC Signal Delay (Off) | 50 ms |
|---|
| Typical AC Signal Delay (Off) | 45 (+/- 15) ms |
|---|
| Protective Coating | Conformal Coat |
|---|
| Compatible Wiring Arm | 1771-WH, 1771-WN |
|---|
| Mounting | Rack Mountable (1771 Chassis) |
|---|
TECHNICAL INFORMATION
Features
- Provides 32 DC sinking outputs organized into four groups of eight channels.
- Operates over a DC supply voltage range of 10 to 30 Volts DC.
- Supports up to 0.5 Amperes continuous current per output channel.
- Delivers a total module continuous current capacity of up to 8 Amperes.
- Draws 330 milliamperes backplane current from the chassis.
- Features conformal coating for electronic circuit protection.
- Connects to field wiring using 1771-WH or 1771-WN wiring arms.
TECHNICAL INFORMATION
Applications
- DC sinking load switching in Allen-Bradley PLC-5 control systems.
- Digital signal interfacing within Bulletin 1771 I/O rack assemblies.
TECHNICAL INFORMATION
Connections / Interfaces
- Connects to external field wiring using a 1771-WH or 1771-WN wiring arm.
- Interfaces with the 1771 backplane through an edge connector.
- Features 32 sinking output terminals grouped in four sets of eight.
TECHNICAL INFORMATION
Installation Guidelines
- Insert the module into an available slot within a compatible 1771 I/O chassis.
- Secure the 1771-WH or 1771-WN wiring arm onto the chassis pivot pins.
- Verify external power supplies operate within the 10 to 30 V DC limit.
- Maintain total continuous load current below the 8 Ampere module limit.
TECHNICAL INFORMATION
Configuration Guidelines
- Assign the 32 output bits within the PLC-5 processor I/O image table.
- Confirm external load polarity aligns with DC sink circuit requirements.
TECHNICAL INFORMATION
Compatibility
- Allen-Bradley Bulletin 1771 I/O chassis assemblies.
- Allen-Bradley PLC-5 programmable logic controller systems.
- Allen-Bradley 1771-WH and 1771-WN field wiring arms.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSAllen-Bradley Bulletin 1771 I/O chassis assemblies. Allen-Bradley PLC-5 programmable logic controller systems. Allen-Bradley 1771-WH and 1771-WN field wiring arms.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the channel density of the Allen-Bradley 1771-OVN module?
The 1771-OVN contains 32 DC sinking outputs arranged into four groups of eight channels each.
Which field wiring arms work with the 1771-OVN?
The module connects to field wiring using either the 1771-WH or 1771-WN wiring arm.
What are the output current limits for the 1771-OVN?
Each output channel carries up to 0.5 Amperes, with an aggregate module continuous limit of 8 Amperes.
What is the reference market price for the 1771-OVN?
Observed market reference pricing is approximately $149.00 USD for refurbished units. These figures are indicative market reference pricing only and are not a final quotation.
