June 08, 2026

HR2000 High‑Performance Incremental Rotary Encoder

The HR2000 is a compact, heavy‑duty incremental rotary encoder manufactured by Reliance Electric (Rockwell Automation), engineered for precise motion feedback in industrial servo and automation systems. It delivers reliable quadrature signals and index pulses, optimized for closed‑loop speed and position control in demanding environments.

Description

HR2000 High‑Performance Incremental Rotary Encoder

General Specifications

Manufacturer: Reliance Electric (Rockwell Automation)

Part Number: HR2000

Type: Incremental optical rotary encoder

Resolution: Configurable up to 2000 PPR (pulses per revolution)

Supply Voltage: 5 VDC ±5%

Output Signals: Quadrature A/B channels, index (Z) channel

Output Interface: TTL/RS‑422 differential

Operating Current: ≤120 mA

Max Operating Speed: 8000 RPM

Protection Rating: IP54

Operating Temperature: −20°C to +70°C

Storage Temperature: −30°C to +85°C

Housing Material: Die‑cast aluminum

Shaft Type: Solid shaft, 6 mm diameter

Mounting: Flange‑mount or servo‑motor integrated

Weight: Approximately 0.4 kg

Mechanical Construction

Optical Assembly: High‑efficiency LED emitter and precision photodetector array ensure stable pulse output and long service life.
Shaft & Bearings: Precision ball bearings minimize radial runout and support continuous high‑speed rotation.
Sealed Housing: Rugged aluminum casing with integrated rubber seals defends against dust, moisture, and industrial contaminants.
Mounting Flexibility: Standard flange design enables direct replacement and compatibility with Reliance Electric and third‑party servo motors.

Core Features

Precision Feedback: Quadrature A/B signals (90° phase shift) enable accurate direction sensing and position tracking; index (Z) pulse supports homing and zero‑position calibration.
Industrial Durability: IP54 protection and wide temperature range ensure reliable performance in harsh factory conditions.
Standard Compatibility: TTL/RS‑422 differential outputs work seamlessly with Reliance Electric GV3000, SP500, and Allen‑Bradley Kinetix drives.
Compact & Vibration‑Resistant: Small form factor saves space; robust construction withstands shock and vibration in high‑dynamic applications.
Maintenance‑Free Operation: Non‑contact optical sensing eliminates wear‑related drift, ensuring consistent accuracy over millions of revolutions.

Application Scope

Primary Applications: Servo motor feedback, CNC machine tools, packaging machinery, material handling, industrial robotics, and printing equipment.
Industrial Sectors: Automotive manufacturing, electronics assembly, food and beverage, plastics machinery, and general automation requiring precise motion control.
System Integration: Designed for Reliance Electric and Allen‑Bradley servo systems, supporting closed‑loop speed and position control.

Installation & Maintenance

Installation: Align encoder shaft with motor shaft using a flexible coupling; secure flange with mounting bolts and connect shielded feedback cable.
Wiring: Follow standard pinout: 5 VDC, GND, A+, A−, B+, B−, Z+, Z−. Use shielded cable to reduce EMI.
Maintenance: No routine maintenance required. Periodically check connections and cable integrity; avoid excessive shaft loads and vibration.

Quality & Compliance

Compliance: CE certified, RoHS compliant, meeting EU EMC and safety standards.
Reliability: Factory‑tested for vibration, shock, and temperature cycling; proven in global industrial installations.
Warranty: Standard 1‑year manufacturer warranty; extended coverage available.

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