PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-OD is an isolated digital output module designed for the PLC-5 system. It features six individually isolated 120V AC output channels. Each channel provides up to 2 A continuous output current. Total continuous current per module cannot exceed 6 A. Operating AC voltage ranges from 92 to 138 V AC across 47 to 63 Hz. Backplane current consumption is 225 mA.
The module mounts directly into any standard Allen-Bradley 1771 I/O chassis slot. External field wiring connects through a 1771-WD or 1771-WH field wiring arm. Terminal screws on the wiring arm require a torque of 7 to 9 inch-pounds. Backplane mechanical keying locates between pins 4 and 6, and between pins 30 and 32. Operating power dissipation ranges from 1.2 to 13.2 W. Thermal dissipation measures between 4.1 and 45.2 BTU per hour.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Number of Outputs | 6 individually isolated channels |
|---|
| Voltage Category | 120 V AC |
|---|
| Operating Voltage Range | 92 to 138 V AC |
|---|
| Output Frequency | 47 to 63 Hz |
|---|
| Max Continuous Current Per Output | 2 A |
|---|
| Max Current Per Module | 6 A |
|---|
| Backplane Current | 225 mA |
|---|
| Power Dissipation | 1.2 to 13.2 W |
|---|
| Thermal Dissipation | 4.1 to 45.2 BTU/hr |
|---|
| Data Format | BCD or Natural Binary |
|---|
| Typical AC Signal Delay (Off) | 45 (+/- 15) ms |
|---|
| Typical DC Signal Delay (Off) | 50 ms |
|---|
| Field Wiring Arm | 1771-WD or 1771-WH |
|---|
| Wiring Arm Screw Torque | 7 to 9 in-lb |
|---|
| Chassis Keying | Between 4 and 6; Between 30 and 32 |
|---|
| Module Coating | Conformal Coat |
|---|
| Mounting | 1771 I/O Chassis |
|---|
TECHNICAL INFORMATION
Features
- Six individually isolated 120V AC output circuits
- Continuous current rating of 2 A per output channel
- Maximum continuous current rating of 6 A per module
- Operating voltage range from 92 to 138 V AC
- Conformal coating protection on internal electronic assemblies
- Direct chassis mounting with swing-arm field wiring connection
TECHNICAL INFORMATION
Connections / Interfaces
- Field terminations connect through a 1771-WD or 1771-WH removable wiring arm.
- Chassis backplane edge connector draws 225 mA operating logic current.
TECHNICAL INFORMATION
Installation Guidelines
- Insert the module into any available slot of an Allen-Bradley 1771 I/O chassis.
- Set chassis backplane keying bands between pins 4 and 6, and pins 30 and 32.
- Tighten field wiring arm terminal screws to 7 to 9 inch-pounds.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure the module using natural binary or BCD data formats in PLC-5 software.
TECHNICAL INFORMATION
Compatibility
- Allen-Bradley 1771 I/O chassis
- Allen-Bradley PLC-5 control systems
- Allen-Bradley 1771-WD and 1771-WH field wiring arms
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSAllen-Bradley 1771 I/O chassis Allen-Bradley PLC-5 control systems Allen-Bradley 1771-WD and 1771-WH 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 maximum current capacity of the 1771-OD module?
The 1771-OD provides 2 A continuous current per output channel. Total module current must not exceed 6 A.
Which field wiring arms are compatible with the 1771-OD?
The module uses the 1771-WD or 1771-WH field wiring arm for external circuit connections.
What is the backplane current requirement for the 1771-OD?
The 1771-OD draws 225 mA of current from the 1771 I/O chassis backplane.
What is the reference market price for the Allen-Bradley 1771-OD?
Observed market reference pricing is approximately $96.00 USD for refurbished condition. This is indicative reference pricing only and not a final quotation.
