PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-M1 is a PLC-5 controller module designed for stepper motor positioning assemblies. It functions as a core component within the 1771-QA stepper motor positioning assembly. The unit provides programmable control of stepper motors within a programmable logic controller architecture. It installs directly into a single slot of an Allen-Bradley 1771 I/O chassis.
The module can manage up to three pulse output expander modules across three axes. Each positioning axis uses one dedicated expander module for pulse output management. The hardware requires a maximum backplane current of 1.75 amperes from the 1771 chassis power supply. Internal electronic circuits feature conformal coating protection for demanding industrial operating conditions. Total weight for this rack-mountable module is 1.25 lbs (0.57 kg).
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Backplane Current | 1.75 Amperes |
|---|
| Category | PLCs |
|---|
| Coating | Conformal Coat |
|---|
| Module Type | Stepper Motor Controller Module |
|---|
| Mounting | Rack Mountable |
|---|
| Product Line | PLC 5 |
|---|
| Slots | 1 Slot |
|---|
| Typical AC Signal Delay (Off) | 45 (+/- 15) ms |
|---|
| Typical DC Signal Delay (Off) | 50 ms |
|---|
| Weight | 1.25 lbs (0.57 kg) |
|---|
| Wiring Arm | 1771-WH |
|---|
TECHNICAL INFORMATION
Features
- Controls up to three pulse output expander modules for multi-axis stepper motor positioning.
- Occupies a single slot inside an Allen-Bradley 1771 I/O chassis.
- Features conformal coating protection on internal electronic circuitry.
- Draws a maximum backplane current of 1.75 amperes from the chassis backplane.
- Compatible with 1771-WH and 1771-WI field wiring arm assemblies.
TECHNICAL INFORMATION
Applications
- Industrial stepper motor positioning using the 1771-QA positioning assembly.
- Programmable stepper motor motion control across up to three axes.
- Chassis-based motion control within Allen-Bradley PLC-5 system architectures.
TECHNICAL INFORMATION
Connections / Interfaces
- Connects directly to the Allen-Bradley 1771 I/O chassis backplane connector.
- Supports field wiring connections through detachable 1771-WH and 1771-WI wiring arms.
- Interfaces with up to three pulse output expander modules for axis control.
TECHNICAL INFORMATION
Installation Guidelines
- Insert the module into one slot of the 1771 I/O chassis.
- Key the upper chassis backplane connector between pins 2 and 4.
- Position keying also between pins 8 and 10 to ensure proper module orientation.
- Secure the field wiring by attaching a compatible 1771-WH or 1771-WI wiring arm.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure stepper motion parameters through programmable controller ladder logic instructions.
- Assign one pulse output expander module to each controlled motion axis.
- Verify module backplane slot addressing within the programmable controller programming software.
TECHNICAL INFORMATION
Compatibility
- Allen-Bradley 1771 I/O chassis backplanes.
- Allen-Bradley 1771-QA stepper motor positioning assembly.
- Allen-Bradley 1771-WH and 1771-WI field wiring arms.
- Pulse output expander modules up to three total units.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSAllen-Bradley 1771 I/O chassis backplanes. Allen-Bradley 1771-QA stepper motor positioning assembly. Allen-Bradley 1771-WH and 1771-WI field wiring arms. Pulse output expander modules up to three total units.
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-M1 controller module?
It provides programmable motion control for stepper motors within the 1771-QA positioning assembly.
How many pulse output expander modules can the 1771-M1 manage?
The module controls up to three pulse output expander modules, supporting one expander module per axis.
What is the backplane current requirement for the 1771-M1?
The 1771-M1 draws a maximum backplane current of 1.75 amperes from the 1771 I/O chassis.
What wiring arm assemblies are compatible with the 1771-M1?
The module connects to field wiring using Allen-Bradley 1771-WH and 1771-WI wiring arms.
What is the indicative market reference price for the 1771-M1?
Observed market reference pricing is approximately 189.00 USD for refurbished units. This figure is indicative market reference pricing only and is not a final quotation.
