HEIDENHAIN 27S17-58 Absolute Rotary Encoder

Technical Specifications

Model：27S17-58 Brand：HEIDENHAIN Product Type: Bearing-integrated absolute optical rotary encoder with stator anti-rotation coupling

Module Feature

Function: HEIDENHAIN 27S17-58 is absolute rotary encoder with built-in precision bearing. It outputs EnDat01 absolute position data together with 1Vpp sine/cosine incremental measuring signals. It adopts blind hollow through shaft with clamping ring, matched with stator coupling to compensate axial and radial installation misalignment. Supports high speed continuous rotation, excellent vibration and temperature resistance. Widely used on heavy horizontal boring mills, machining centers for spindle closed-loop angular position & speed measurement.

Measuring principle: Absolute optical scanning + incremental sinusoidal signal Interface: EnDat 01 Output Signal: 1 Vpp sine/cosine incremental signals Shaft specification: Blind hollow shaft with clamping ring Onboard components: Optical grating disc, scanning assembly, built-in bearing, metal housing, M23 signal connector

LED indicators: Not equipped on encoder body

Hardware self-diagnosis

Signal amplitude test, EnDat communication check, reference mark inspection, bearing noise & temperature monitoring

Programming software

HEIDENHAIN diagnostic software for encoder parameter reading and signal waveform analysis

Electrical Parameters

Supply voltage: 3.6VDC ~14VDC Power consumption: Max 0.8W

Mechanical & Structure

Mounting: Hollow shaft fitted onto spindle, stator anti-rotation coupling Protection class: IP64 (housing)

Environmental

Operating temperature: -40℃ ~ +100℃ Ambient humidity: 5~85% non-condensing Certification: CE Status: HEIDENHAIN heavy-duty spindle absolute rotary encoder

System compatibility

Compatibility description: 27S17-58 rotary encoder works with HEIDENHAIN EnDat controller and drives supporting 1Vpp signals. Suitable for Fives Giddings & Lewis PIC900 CNC heavy boring mill spindle axis.

Function

Function description: 27S17-58 is absolute rotary encoder manufactured by HEIDENHAIN. It can read absolute angular position directly after power-on without full axis homing, meanwhile delivers high-quality 1Vpp sine/cosine incremental signals for high interpolation resolution. Hollow shaft design simplifies spindle assembly process. Stator coupling absorbs mounting offset and protects internal bearing from mechanical stress. Compact metal housing resists cutting fluid, dust and workshop vibration. It is core measuring spare for heavy CNC boring mill spindle closed-loop motion control.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off all power supply. Fit encoder hollow shaft onto machine spindle, tighten clamping ring. Fix stator coupling to prevent housing rotation. Connect shielded EnDat encoder cable to control unit. Adjust mounting alignment, lock all fasteners. Restore power, run EnDat communication test and signal amplitude verification.

Interface

Interface list: M23 signal connector, 3.6~14VDC power and measuring signal terminals, no LED indicators on 27S17-58.

Diagnostic

Troubleshooting: No EnDat communication: Check power supply, cable breakage and connector pin contact. Weak incremental signal: Optical window contamination or shaft misalignment. Intermittent position loss: Loose clamping ring, bearing wear or cable abrasion.

Product Brief

Brief description: 27S17-58 HEIDENHAIN bearing-integrated absolute rotary encoder with blind hollow shaft,EnDat01 and 1Vpp signal,used for spindle angular position and speed measurement of heavy CNC boring mill,rotary encoder spare.