PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-OQ is an 8-point digital DC output module designed for PLC-5 control systems. It operates within a direct current supply range of 20.4 to 26.4 volts DC. The module draws 225 milliamperes of backplane current directly from the chassis power supply. Total module continuous current capacity reaches up to 9 amperes. Each individual output channel provides up to 2.25 amperes of continuous load current.
This rack-mountable unit installs into any available I/O chassis slot except the dedicated leftmost adapter slot. Field wiring connects via a 1771-WH wiring arm without disturbing chassis backplane connections. Output states reflect the corresponding bit conditions mapped in the PLC-5 data table. Jumpers are provided on each output channel for inductive load optimization such as solenoids. Conformal coating provides protection for internal electronic assemblies in challenging industrial environments.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Category | PLCs |
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| Weight | 2.13 lbs (0.96 kg) |
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| Module Type | Digital DC Output Module |
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| Number of Outputs | 8 Outputs |
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| Voltage Category | 10-60 Volts DC, Source |
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| DC Operating Voltage | 20.4-26.4 Volts |
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| Backplane Current | 225 Miliamperes |
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| Max Continuous Current Per Output | 2.25 Amperes |
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| Max Continuous Current Per Module | 9 Amperes |
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| Wiring Arm | 1771-WH |
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| Model Status | Earlier Model |
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| Coating | Conformal Coat |
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| Typical AC Signal Delay (Off) | 45 (+/- 15) ms |
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| Typical DC Signal Delay (Off) | 50 ms |
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| Mounting | Rack Mountable |
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TECHNICAL INFORMATION
Features
- Provides eight isolated DC sourcing outputs for direct field device control.
- Delivers up to 2.25 amperes continuous current per output channel.
- Supports a maximum total continuous current rating of 9 amperes.
- Draws 225 milliamperes of operating current from the 1771 backplane.
- Includes jumper configurations on each output to optimize solenoid turnoff time.
- Features conformal coating to protect circuitry from ambient industrial contaminants.
TECHNICAL INFORMATION
Applications
- Control of DC solenoids and actuators in industrial machinery.
- Direct switching of isolated circuits in motor control centers.
- DC signal termination requiring isolated sourcing outputs in PLC-5 architectures.
TECHNICAL INFORMATION
Connections / Interfaces
- Interfaces with the 1771 I/O chassis backplane connector.
- Accepts external field wiring via the 1771-WH wiring arm assembly.
TECHNICAL INFORMATION
Installation Guidelines
- Insert the module into any standard slot within a 1771 I/O chassis.
- Do not place the module in the leftmost slot reserved for processors.
- Align backplane keying bands with module slots using fingers only.
- Never use hand tools to insert keying bands to prevent connector damage.
- Attach the 1771-WH wiring arm to maintain secure field connections.
TECHNICAL INFORMATION
Configuration Guidelines
- The module maps directly to assigned bit addresses in the PLC data table.
- Remove the channel jumper when controlling solenoid loads to accelerate turnoff times.
- Retain factory default jumper placement for standard resistive DC load configurations.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley 1771 I/O chassis platforms.
- Operates with PLC-5 programmable logic controller systems.
- Mates with the 1771-WH wiring arm.
TECHNICAL INFORMATION
Lifecycle / Replacement Information
- Classified under earlier model product lifecycle status.
- Available through secondary automation channels for existing system maintenance.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley 1771 I/O chassis platforms. Operates with PLC-5 programmable logic controller systems. Mates with the 1771-WH wiring arm.
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 operating voltage range for the 1771-OQ module?
The module operates across a direct current voltage range of 20.4 to 26.4 volts DC.
Which wiring arm is used with the Allen-Bradley 1771-OQ?
The module utilizes the 1771-WH wiring arm for all field connection terminations.
How much continuous current can each output channel handle?
Each individual output channel supports up to 2.25 amperes of continuous load current.
What is the indicative market reference price for the 1771-OQ?
Observed market reference pricing ranges between 275.00 and 4020.00 USD. Pricing varies based on condition and availability. This figure is an indicative market reference only and not a final quotation.
