Allen-Bradley 1771-HSN Servo Controller Module PLC 5

Product Introduction

The Allen-Bradley 1771-HSN is a Servo Controller Module designed for the PLC 5 IMC 120 system. This module provides high-speed motion control capabilities for demanding industrial applications. It features ±10V DC analog command outputs and accepts differential inputs up to 250 kHz. Furthermore, the module requires a 1771-HM or 1771-HMA plug-in memory cartridge for operation, as it does not include onboard memory. Meanwhile, its 2 ms/axis update period ensures responsive and precise servo control. The 1771-HSN occupies a single slot in a 1771 I/O chassis, making it easy to integrate into existing PLC 5 systems.

Technical Specifications

This section details the core technical capabilities of the 1771-HSN module.

Input and Output Characteristics

The 1771-HSN provides high-performance servo control through its analog outputs and differential inputs. Specifically, the module delivers ±10V DC analog command outputs to drive servo amplifiers. Additionally, it accepts differential inputs with a maximum frequency of 250 kHz, enabling precise position and velocity feedback. The pulse capture time ranges from 50 to 9,999 microseconds, offering flexible configuration for various encoder types. Consequently, the 1771-HSN supports a wide range of motion control applications, from simple positioning to complex multi-axis coordination.

• Outputs: ±10V DC Analog Command

• Max Input Frequency: 250 kHz Differential Input

• Pulse Capture Time: 50-9,999 Microseconds

• Fuse Voltage: 120 Volts

Update Period and Performance

The 1771-HSN delivers consistent, high-speed performance for motion control tasks. Its module update period is 2 milliseconds per axis, ensuring timely command execution and feedback processing. This rapid update rate enables smooth and accurate servo operation, even in high-speed applications. Furthermore, the module's backplane current draw is 1.7 amperes, which is within the typical capacity of PLC 5 chassis power supplies. Therefore, you can integrate the 1771-HSN into most existing PLC 5 systems without power supply upgrades.

• Module Update Period: 2 ms/axis

• Backplane Current: 1.7 Amperes

• Slots Required: 1 slot per module

Memory Cartridge Requirement

The 1771-HSN does not include onboard memory for program storage. Therefore, it requires a 1771-HM or 1771-HMA plug-in memory cartridge to operate. This cartridge stores the servo control parameters and motion profiles. Without this cartridge, the module cannot function. Consequently, ensure you order the appropriate memory cartridge when purchasing the 1771-HSN. The use of removable memory also facilitates easy program transfer and backup between modules.

Wiring and Installation Accessories

The 1771-HSN comes with 1771-WA and 1771-WB wiring arms. These wiring arms allow for module replacement without disconnecting field wiring. Specifically, the wiring arms remain attached to the chassis while the module is removed. This design significantly reduces downtime during maintenance or replacement. Furthermore, the module requires one slot for installation in a 1771 I/O chassis. This single-slot design preserves chassis space for other I/O modules.

Mechanical and Environmental Parameters

The 1771-HSN is built for reliable operation in industrial environments. Its compact dimensions allow for easy installation in standard 1771 chassis.

• Dimensions: 3.5 x 6.5 x 2.0 inches (89 x 165 x 51 mm)

• Weight: 2.2 lbs (1.0 kg)

• Operating Temperature: 32 to 140 °F (0 to 60 °C)

• Relative Humidity: 5 to 95% (non-condensing)

• Operating Shock: 30g

Certifications and Standards

The 1771-HSN meets key industry certifications for safety and quality. It is UL listed, ensuring compliance with North American safety standards. Additionally, it is CSA certified, confirming its suitability for Canadian industrial applications. These certifications provide confidence in the module's reliability and safety. Therefore, the 1771-HSN is approved for use in a wide range of regulated industries.

System Integration and Compatibility

The 1771-HSN is part of the PLC 5 platform, a widely used control system for industrial automation. PLC 5 controllers support high-speed information processing and specialized I/O requirements. Furthermore, the platform offers a complete range of digital and analog I/O modules, including intelligent I/O. The 1771-HSN integrates seamlessly with these components. Moreover, the PLC 5 system supports various communication networks, including DH+, ControlNet, and EtherNet/IP. Consequently, you can easily connect the 1771-HSN to your existing plant-wide network infrastructure.

Installation Guidelines

Proper installation of the 1771-HSN ensures reliable operation and system performance. First, install the 1771-WA and 1771-WB wiring arms onto the 1771 I/O chassis. Next, connect your field wiring to the wiring arms according to the wiring diagram. Then, insert the 1771-HM or 1771-HMA memory cartridge into the module. After that, slide the module into the designated slot until it seats firmly. Finally, secure the module and apply power to the chassis. Additionally, always power down the system before installation or removal to protect both personnel and equipment.

Packaging List

When you receive your new 1771-HSN, the package will contain the following items. Please inspect the contents upon delivery.

• 1 x Allen-Bradley 1771-HSN Servo Controller Module

• 1 x 1771-WA Wiring Arm

• 1 x 1771-WB Wiring Arm

• Installation instructions sheet

Note: The memory cartridge (1771-HM or 1771-HMA) is not included and must be ordered separately. No interconnecting cables or additional accessories are provided.

Shipping Information
We ship all orders using premium, trackable carriers such as Fedex, UPS, and DHL. A tracking number will be emailed to you promptly after dispatch.

Frequently Asked Questions (FAQ)

Q1: Does the 1771-HSN include a memory cartridge?
A1: No, the 1771-HSN does not include a memory cartridge. It requires a 1771-HM or 1771-HMA plug-in memory cartridge, which must be purchased separately for the module to operate.

Q2: What is the maximum input frequency supported by the 1771-HSN?
A2: The 1771-HSN supports differential inputs with a maximum frequency of 250 kHz. This allows for high-resolution feedback from encoders and other position sensors.

Q3: How many slots does the 1771-HSN occupy in a 1771 chassis?
A3: The 1771-HSN requires only one slot for installation in a 1771 I/O chassis. This single-slot design maximizes available space for other system components.

Q4: What is the module update period of the 1771-HSN?
A4: The 1771-HSN has a module update period of 2 milliseconds per axis. This rapid update rate ensures responsive and accurate servo control performance.

Q5: What wiring accessories come with the 1771-HSN?
A5: The 1771-HSN comes with 1771-WA and 1771-WB wiring arms. These allow for convenient module replacement without disconnecting the field wiring, minimizing maintenance downtime.