Allen-Bradley 1771-HS3A 3-Axis Servo Controller Module

Product Overview

The 1771-HS3A is a 3-axis servo controller module. It belongs to the Allen-Bradley PLC-5 product line. This module fits into a 1771 I/O chassis. It requires the 1771-PS7 power supply. The module controls solenoids, indicators, and AC motor starters. It uses a resolver feedback system. The resolver excitation module generates sine and cosine signals. It also supports encoder feedback with 10V DC isolated outputs. The encoder input operates at 250 kHz differential and 20 kHz single-ended. The module features LED status indicators. It connects via RS-232 to ODS units. Optional hand-held pendants modify system variables.

Application Scenarios

This servo controller handles multi-axis motion control. It works in packaging, assembly, and material handling. It drives AC servomotors through resolvers. The module suits environments with solenoids and motor starters. It operates in ambient temperatures from 0 to 60°C. Humidity ranges from 5% to 95% without condensation. The 1771-HS3A is c-UL, C-TICK, and CE certified.

Technical Specifications

Input frequency is 250 kHz differential. Outputs are ±10V DC analog command. Backplane current is 1.7 amperes. Update period is 2 ms per axis. Pulse capture time ranges from 50 to 9,999 microseconds. The module takes 2 slots per ES module. Dimensions are 3.5 x 6.5 x 2.0 inches (89 x 165 x 51 mm). Fuse voltage is 120 volts max.

Installation & Maintenance Guide

Install the module into a 1771 I/O chassis. Use the 1771-WA wiring arm for connections. Connect the power supply using cable 1771-CAS. The 1771-HMA battery-backed memory cartridge stores AMP parameters. Use RS-232 for programming. Check LED indicators for status. No routine maintenance is required beyond cleaning.

Packing List

1x 1771-HS3A servo controller module. 1x 1771-WA wiring arm.