PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-ODC is a PLC-5 Digital Output Module designed for 1771 I/O chassis systems. It provides six individually isolated AC output channels operating at a nominal voltage of 120V AC. The operating voltage range spans from 92 to 138V AC across a 47 to 63 Hz frequency. This module executes discrete output commands received directly from the PLC-5 processor.
Each output channel delivers up to 2A continuous current with a module maximum of 6A. Individual channels contain surge suppression circuitry to limit high-voltage AC line transients. The module includes optical coupling and filtering to reduce electrical signal noise. Twelve front-panel status indicators show individual output states and blown-fuse conditions. Field connections attach through a catalog 1771-WD or 1771-WH field wiring arm.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| AC Operating Voltage | 92-138 Volts |
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| Backplane Current | 225 Miliamperes |
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| Category | PLCs |
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| Compatible chassis | 1771 I/O chassis |
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| Data Format | BDC or Natural Binary |
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| Field Wiring Arm | Cat. No. 1771-WD |
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| Keying | Between 4 and 6; Between 30 and 32 |
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| Max Continuous Current Per Output | 2 Amperes |
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| Max Current Per Module | 6 Amperes |
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| Model Status | Earlier Model |
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| Module Type | Individually isolated discrete output module |
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| No. of Output | Six (6) outputs |
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| Number of Outputs | 6 Outputs |
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| Operating Voltage Range | 92 - 138VAC |
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| Output Frequency | 47-63 Hz |
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| Output current rating per channel | 2 A |
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| Output current rating per module | 6 A |
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| Power Dissipation | 1.2-13.2 Watts |
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| Product Line | PLC 5 |
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| Thermal Dissipation | 4.1-45.2 BTU/hr |
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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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| UPC | 10612598002990 |
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| Voltage Category | 120 Volts AC |
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| Weight | 3.00 lbs (1.36 kg) |
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| Wiring Arm | 1771-WH |
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| Wiring Arm Screw Torque | 7-9 inch-pounds |
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TECHNICAL INFORMATION
Features
- Provides six individually isolated AC output channels rated for 120V AC operation.
- Delivers 2A continuous current per channel with a 6A total module current limit.
- Features twelve front-panel indicators displaying channel output status and blown-fuse conditions.
- Includes internal 5A 250V normal-blow fuses on each output circuit.
- Employs built-in surge suppression circuitry to protect against AC line transients.
TECHNICAL INFORMATION
Applications
- Direct control of 120V AC motor contactors and industrial relay coils.
- Actuator and indicator control across Allen-Bradley PLC-5 system architectures.
TECHNICAL INFORMATION
Connections / Interfaces
- Connects to field wiring through 1771-WD or 1771-WH field wiring arms.
- Eliminates the need to disconnect field wires during module replacement.
- Draws 225 mA operating current directly from the 1771 I/O chassis backplane.
TECHNICAL INFORMATION
Installation Guidelines
- Install the module into any available slot of a 1771 I/O chassis.
- Place keying bands between pins 4-6 and pins 30-32 of the connector.
- Snap the field wiring arm onto the chassis pivot posts.
- Tighten wiring arm terminal screws to 7 to 9 inch-pounds of torque.
TECHNICAL INFORMATION
Configuration Guidelines
- Supports 1/2-slot, 1-slot, and 2-slot addressing modes in the PLC-5 chassis.
- Allocates 8 image bits per module within the processor image table.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley 1771 I/O chassis and PLC-5 controllers.
- Accepts 1771-WD and 1771-WH wiring arms for field terminations.
TECHNICAL INFORMATION
Lifecycle / Replacement Information
- Classified as an earlier model within the Allen-Bradley PLC-5 product line.
TECHNICAL INFORMATION
Compliance and Certifications
- Electrical isolation meets or exceeds UL Standard 508 requirements.
- Complies with CSA Standard C22.2 No. 142 industrial control equipment standards.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley 1771 I/O chassis and PLC-5 controllers. Accepts 1771-WD and 1771-WH wiring arms for field terminations.
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 primary function of the Allen-Bradley 1771-ODC module?
It provides six isolated 120V AC discrete outputs to switch industrial AC loads.
What type of fuse is installed in the 1771-ODC module?
Each channel uses a 5A, 250V 3AG normal-blow fuse such as Buss AGC-5.
Which wiring arms are compatible with the 1771-ODC?
The module connects with catalog number 1771-WD or 1771-WH field wiring arms.
What is the reference price for an Allen-Bradley 1771-ODC module?
Indicative market pricing is approximately $118.00 for used or refurbished units. This figure is an indicative market reference only and not a final quotation.
