Heidenhain 385488-01 (ERN 1387) Incremental Rotary Encoder

Technical Specifications & Overview

The Heidenhain 385488-01 (ERN 1387 series) is a specialized incremental rotary encoder with integral bearings, designed primarily as a motor feedback system for elevator drives and industrial servo applications. It generates 2048 sinusoidal lines per revolution along with absolute commutation signals (1 Vpp 1 sin/cos track) to ensure smooth rotation, low torque ripple, and accurate drive vector control.

Key Technical Characteristics

• Manufacturer: Heidenhain

• Part Number / ID: 385488-01

• Series / Model: ERN 1387

• Line Count / Resolution: 2048 lines per revolution

• Signal Interface: 1 Vpp incremental sinusoidal signals with Z1 track for commutation

• Power Supply: 5 V DC (±5%)

• Shaft Design: 1:10 Taper shaft (9.25 mm functional diameter) for direct motor shaft connection

• Mounting Design: Integral bearing with mounted stator coupling

• Degree of Protection: IP 40 (EN 60529)

• Operating Temperature: -40 °C to +100 °C

Applications & Industrial Integration

Specifically engineered for precise speed control and initial rotor position estimation in gearless and geared traction motors, the Heidenhain 385488-01 encoder is widely utilized in:

• Elevator traction machines and hoist motors

• Synchronous and asynchronous industrial servo drives

• High-dynamic direct-drive motion control systems

• Automated material handling and hoist machinery

Commercial Assistance & Sourcing

At AtlanTech Drives, we focus on high-level commercial sourcing for critical industrial automation components. Contact our sales specialists today to check warehouse availability, discuss lead times, or request an immediate competitive quote.