Heidenhain EXE 702B Encoder Interface ROD 456-900 Rotary Stage 195mm Positioner

Heidenhain EXE 702B Encoder Interface ROD 456-900 Rotary Stage 195mm Positioner

This is a complete Heidenhain rotary encoder positioning system consisting of the EXE 702B 700 Series Encoder Interface Unit, a Heidenhain ROD 456-900 rotary encoder, a custom 195mm precision rotating stage on a raised platform, and two Parker Compumotor S/SX 57-83 indexing/stepping drives. The system was pulled from a working environment and includes the associated cabling and connectors as shown in the photos.

Specifications & What's Included

• QTY 1: Heidenhain EXE 702B (EXE702B) — 700 Series Encoder Interface Unit, Id.Nr. 225 551 02
• QTY 1: Heidenhain ROD 456-900 (ROD456-900) — Rotary Incremental Encoder
• QTY 2: Parker / Compumotor Indexing/Stepping Drive — Model S/SX 57-83, Part No. 71-011644-02
• Custom precision rotating stage on raised machined platform
• Stage diameter: 195 mm
• Stage center port: 100 mm x 100 mm square aperture
• EXE 702B input voltage: 100/120/140V AC ~T0.315A or 200/220/240V AC ~T0.160A
• Frequency: 50–60 Hz
• Country of manufacture: Germany (Heidenhain, Traunreut)
• Connectors: DB9 serial, DB25, multi-pin circular (rear panel), plus stepper motor harness cabling
• Optical element visible in stage aperture (see photos)

Applications

The Heidenhain EXE 700 series encoder interface units are signal conditioning and interpolation electronics designed to work with Heidenhain incremental encoders such as the ROD 456 series. The EXE 702B conditions the raw encoder signals from the ROD 456-900 rotary encoder and outputs interpolated position data to a host motion controller or CNC system. The ROD 456 series rotary encoders are precision optical incremental encoders widely used in precision motion control, semiconductor wafer handling, optical alignment stages, metrology equipment, and laboratory automation. The 900-line-count ROD 456-900 provides high-resolution angular position feedback suited to demanding positioning tasks. Custom rotary stages of this type — built around a precision encoder ring and driven by stepping motors — are commonly found in semiconductor inspection and processing tools, optical test benches, and research lab automation systems. The Parker Compumotor S/SX 57-83 stepping drives are NEMA 23-frame microstepping drives used to control the stepper motors that actuate the stage. Together, this system represents a capable closed-loop or open-loop precision rotary positioning platform suitable for optical, semiconductor, or scientific instrumentation applications.