Product Overview
The Allen-Bradley 1771-HSAR is a dedicated IMC servo controller module engineered for the PLC-5 family. This module provides precise motion control for multi-axis applications, making it a critical component in automated manufacturing lines. With a 96K battery-backed memory cartridge, the 1771-HSAR stores application programs and AMP parameters securely, ensuring reliable operation even during power interruptions.
Designed for demanding industrial environments, the 1771-HSAR operates on a 120/220 Volts AC power supply and delivers a maximum input frequency of 250 Kilohertz differential input. Its compact form factor fits into 2 slots per ES, optimizing rack space while delivering high-performance servo control.
Technical Specifications
Below are the key technical specifications for the Allen-Bradley 1771-HSAR servo controller module:
| Specification |
Value |
| Manufacturer |
Rockwell Automation |
| Brand |
Allen-Bradley |
| Part Number/Catalog No. |
1771-HSAR |
| Module Type |
Servo Controller Module |
| Fuse Voltage |
120 Volts |
| Max Input Frequency |
250 Kilohertz Differential Input |
| Outputs |
+/- 10 Volt DC Analog Command |
| Slots |
2 Slots Per ES |
| Module Update Period |
2 ms/axis |
| Backplane Current |
1.7 Amperes |
| Wiring Arm |
1771-WA |
| Pulse Capture Time |
50-9.999 Microseconds |
| Dimensions |
3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm) |
Key Features & Benefits
-
Battery-Backed Memory: The 96K memory cartridge uses a lithium battery with a typical lifespan of 3 years, ensuring data retention for up to 10 years.
-
Flexible Power Input: Supports 120V AC or 220V AC power supplies, making it adaptable to various global installations.
-
High-Speed Input: With a 250 KHz differential input frequency, the module handles rapid encoder feedback accurately.
-
Precise Analog Output: Provides ±10V DC analog command signals for smooth servo motor control.
-
Fast Update Rate: The 2 ms/axis update period ensures responsive motion control.
-
Multiple Connectivity Options: Includes AUX FDBK (15-pin), RS-232 (9-pin), and various cable connections for comprehensive system integration.
Industry Applications
The Allen-Bradley 1771-HSAR excels in applications requiring precise multi-axis motion control. Typical use cases include:
-
Packaging Machinery: Controls servo-driven cutoffs, registration, and product positioning.
-
Material Handling: Manages conveyor synchronization and robotic pick-and-place operations.
-
Machine Tool Automation: Provides axis control for CNC and milling equipment.
Its robust design and reliable memory backup make it ideal for continuous production environments where downtime is costly.
Installation & Setup Guidance
Proper installation is essential for optimal performance. Follow these steps:
- Mount the module in an available 2-slot space in the PLC-5 chassis, ensuring proper backplane connection.
- Connect the 1771-CAS power connector cable between the power supply and the module's power connector.
- Attach the wiring arm (1771-WA) for field wiring termination.
- Connect the AUX FDBK cable (1771-CAPA) to the auxiliary feedback connector on the termination panel.
- Connect the RS-232 cable (1771-CT50) for programming and debugging.
- Verify all connections are secure before powering up.
Maintenance & Reliability
To ensure long-term reliability, inspect the module periodically:
- Check the lithium battery voltage annually; replace every 3 years or as needed.
- Clean the module and connectors to prevent dust buildup.
- Ensure proper ventilation to avoid overheating.
- Regularly back up the memory cartridge to prevent data loss.
Following these practices minimizes unexpected failures and extends the service life of the 1771-HSAR.
Compatibility & Integration
The 1771-HSAR is designed for the Allen-Bradley PLC-5 system, offering seamless integration with existing control architectures. It supports the 1771-WA wiring arm and various cables for connection to termination panels and programming devices. The RS-232 interface allows for offline development using T35 and T50 systems.
Selection Guide & Purchasing Advice
When purchasing a 1771-HSAR, verify the following:
- Confirm the module is in good working condition and includes the battery-backed memory cartridge.
- Check for the presence of the 1771-WA wiring arm and necessary cables.
- Ensure compatibility with your existing PLC-5 chassis and power supply.
PLC Source PRO offers genuine Allen-Bradley 1771-HSAR modules with verified quality. Contact us to confirm stock and availability.