Products Description
HEIDENHAIN RON285 Angle Encoder

Technical Specifications
Model: RON285, ID.Nr.358 697-16
Brand: HEIDENHAIN
Product Type: Bearing-integrated incremental hollow shaft angle encoder for rotary table / swivel axis
Module Feature:
Function: HEIDENHAIN RON285 incremental angle encoder. It measures high precision angular position and rotation speed of rotary axis, outputs 1Vpp sine/cosine incremental signals. Integrated stator coupling for direct mounting. Used on heavy horizontal boring mills and 5-axis machining centers for closed-loop rotary table positioning.
Measuring principle: Incremental optical scanning Line count: 18000 lines per revolution Output Signal: 1 Vpp sinusoidal sine/cosine signals Hollow shaft design with integrated stator coupling Onboard components: Metallic grating ring, optical scanning assembly, precision bearing, aluminum housing, M23 flange connector
LED indicators: POWER, SIG, FAULT diagnostic lights
Hardware self-diagnosis: Signal amplitude monitoring, optical signal integrity inspection
Programming software: HEIDENHAIN diagnostic software for signal amplitude verification
Electrical Parameters
Supply voltage: 5VDC ±10%
Power consumption: Max 3.0W
Mechanical & Structure:
Mounting: Hollow shaft fitted directly on rotary axis, integrated stator coupling Hollow shaft diameter: 20mm Protection class: IP64 (housing)
Environmental:
Operating temperature: -10℃ ~ +70℃
Ambient humidity: 5~85% non-condensing
Certification: CE
Status: HEIDENHAIN high precision incremental angle encoder
System compatibility
Compatibility description: RON285 belongs to HEIDENHAIN RON200 series angle encoder family,1Vpp sinusoidal output. Compatible with HEIDENHAIN EXE interpolation units and Fives Giddings & Lewis PIC900 CNC system for heavy boring mill rotary table axis.
Function
Function description: RON285 is incremental angle encoder manufactured by HEIDENHAIN. Hollow through shaft and integrated stator coupling allows direct mounting on rotary table spindle without extra flexible coupling. It delivers high resolution sine/cosine analog signals to interpolation unit for angular position calculation. Rugged metal housing protects optical components from vibration, coolant mist and metal chips. Reference mark pulse required for axis homing after power-up. It is high precision rotary axis position measuring spare for heavy CNC boring mills.
Installation
Installation steps: Follow lockout/tagout safety procedure before installation. Cut off encoder 5VDC power. Install encoder onto rotary hollow shaft, fix axial and radial clamping. Connect shielded encoder signal cable to HEIDENHAIN EXE interpolation unit. Restore power, verify POWER and SIG LED indicators, run encoder diagnostic and check rotary axis position reading.
Interface
Interface list: M23 multi-pin flange connector, 5VDC power terminal,on-board POWER / SIG / FAULT LED indicators for HEIDENHAIN RON285 358 697-16.
Diagnostic
Troubleshooting: No position reading: Check 5VDC supply voltage, cable breakage or connector pin damage. FAULT LED lit: Low signal amplitude, optical contamination or shaft mounting misalignment. Rotary axis position jump: Shaft runout, mechanical vibration or optical component aging.

Product Brief
Brief description: 358 697-16 HEIDENHAIN RON285 hollow-shaft incremental angle encoder with 18000 lines and 1Vpp output,provides rotary table angular position and speed feedback for heavy CNC boring mill closed-loop control,high precision rotary encoder spare.