HEIDENHAIN 770967-20 Encoder Adapter Cable Assembly

Technical Specifications

Model： 770967-20

Brand： HEIDENHAIN

Product Type: Shielded rotary encoder signal adapter cable assembly for RCN series angle encoders

Module Feature:

Function: HEIDENHAIN 770967-20 prefabricated shielded encoder adapter cable. Transmits power and absolute position feedback signals between RCN rotary encoder and CNC controller. Full copper braid shielding suppresses electromagnetic interference, ensures reliable high-resolution angle data transmission for rotary axis on heavy horizontal boring mills and large machining centers.

Cable type: Multi-core shielded signal cable Matched Device: HEIDENHAIN RCN series rotary angle encoders Onboard components: Tinned copper conductors, PE insulation, overall copper braid shield, molded connectors at both ends, strain relief protection

LED indicators: Not applicable (Cable assembly)

Hardware self-diagnosis: Continuity test, insulation resistance test, shield continuity inspection

Programming software: No programming required

Electrical Parameters

Voltage rating: 300V Conductor specification: Multi-core signal conductors for power and serial data

Mechanical & Structure:

Installation: Fixed routing inside machine cabinet and rotary axis housing Outer jacket: Oil resistant, flame retardant PUR jacket Bending radius: ≥10 × cable outer diameter

Protection class: IP64 (connector side)

Environmental:

Operating temperature: -20℃ ~ +80℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: HEIDENHAIN standard RCN encoder cable assembly

System compatibility

Compatibility description: 770967-20 belongs to HEIDENHAIN encoder accessory family. Specially designed for RCN series absolute rotary encoders, compatible with Fives Giddings & Lewis PIC900 CNC heavy boring mills.

Function

Function description: 770967-20 is ready-made shielded signal cable manufactured by HEIDENHAIN. It connects RCN rotary encoder to CNC control unit, delivering DC power and absolute serial angle feedback data. Copper braid shield isolates signal from PWM servo power noise. PUR outer jacket withstands coolant, oil mist and metal chips in machine workshop environment. It is rotary encoder feedback wiring spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off encoder and CNC controller power. Disconnect old cable connectors at rotary encoder and CNC control end. Route 770967-20 cable separately from servo power cables. Secure cable clamps and connectors. Check insulation resistance and shield grounding. Restore power, test encoder communication and monitor rotary axis position reading.

Interface

Interface list: RCN encoder side connector, CNC controller signal connector for HEIDENHAIN 770967-20.

Diagnostic

Troubleshooting: No encoder communication: Check cable continuity, connector pin damage or wire breakage. Intermittent rotary axis position fault: Poor shield grounding, connector corrosion or cable insulation aging. Signal loss alarm: Excessive bending damage to internal wires or shield fracture.

Product Brief

Brief description: 770967-20 is HEIDENHAIN shielded RCN rotary encoder adapter cable,for power and absolute angle signal transmission between RCN encoder and CNC controller on heavy CNC boring mills,encoder wiring spare.