HEIDENHAIN 5MS16-71 Absolute Rotary Encoder

Module Feature

Function: HEIDENHAIN 5MS16-71 is single-turn absolute rotary encoder with built-in precision bearing. It outputs EnDat01 single-turn absolute position data together with 1Vpp sine/cosine incremental measuring signals. It adopts 9.25mm 1:10 tapered shaft with expanding ring friction locking design, equipped with stator anti-rotation coupling to compensate axial and radial installation misalignment. It supports high speed rotation, good vibration and temperature resistance. Widely used on heavy horizontal boring mills, machining centers for spindle and servo motor 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: 1:10 tapered shaft, functional diameter 9.25mm Onboard components: Optical grating disc, scanning assembly, built-in bearing, metal housing,12-pin double-row locking 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 0.7W

Mechanical & Structure

Mounting: 1:10 tapered shaft fitted onto motor rotor, stator anti-rotation coupling Protection class: IP40 (housing)

Environmental

Operating temperature: -40℃ ~ +115℃ Ambient humidity: 5~85% non-condensing Certification: CE Status: HEIDENHAIN heavy-duty single-turn absolute rotary encoder

System compatibility

Compatibility description: 5MS16-71 rotary encoder works with HEIDENHAIN EnDat controller and drives supporting 1Vpp signals. Suitable for Fives Giddings & Lewis PIC900 CNC heavy boring mill spindle and feed axis.

Function

Function description: 5MS16-71 is single-turn absolute rotary encoder manufactured by HEIDENHAIN. It can read absolute angular position directly after power-on without full axis homing. The 1Vpp sine/cosine incremental signals support high interpolation resolution for high dynamic motion control. 1:10 taper shaft and friction locking structure ensures reliable torque transmission. Stator coupling absorbs mounting offset and protects internal bearing. Compact metal housing withstands machine workshop vibration and high temperature. It is core measuring spare for heavy CNC boring mill closed-loop motion control.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off all power supply. Fit encoder tapered shaft onto motor rotor, tighten expanding locking 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: 12-pin double-row locking EnDat connector, 3.6~14VDC power and measuring signal terminals, no LED indicators on 5MS16-71.

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 taper locking ring, bearing wear or cable abrasion.

Product Brief

Brief description: 5MS16-71 HEIDENHAIN bearing-integrated single-turn absolute rotary encoder with 1:10 tapered shaft,EnDat01 and 1Vpp signal,used for spindle and servo motor angular position and speed measurement of heavy CNC boring mill,rotary encoder spare.