HEIDENHAIN 1118858-05 Encoder Cable Assembly

Technical Specifications

Model：1118858-05 Brand：HEIDENHAIN Product Type: Pre-terminated shielded measuring cable for HEIDENHAIN rotary encoders

Module Feature

Function: HEIDENHAIN 1118858-05 is factory assembled shielded encoder cable, designed for connecting HEIDENHAIN incremental or absolute rotary encoders with control units. It transmits DC power supply and measuring signals. Twisted pair conductors plus full copper braid shielding suppress electromagnetic interference generated by servo drives. PUR outer sheath provides excellent resistance to cutting oil, abrasion and bending fatigue. Widely applied on heavy horizontal boring mills, machining centers and spindle encoder wiring.

Cable construction: Twisted pair multi-core, overall copper braided shield Connector: M23 circular metal connector Jacket material: PUR Onboard components: M23 plug, shielded multi-core cable, strain relief

LED indicators: Not applicable

Hardware self-diagnosis

Cable continuity test, insulation resistance inspection, shielding integrity check

Programming software

Not required

Electrical Parameters

Rated voltage: 60V Insulation resistance: ≥100MΩ

Mechanical & Structure

Mounting: Fixed routing inside machine cabinet and spindle area Protection class: IP67 when connector fully mated

Environmental

Operating temperature: -20℃ ~ +80℃ Ambient humidity: 5~85% non-condensing Certification: CE Status: HEIDENHAIN heavy-duty pre-assembled machine tool encoder cable

System compatibility

Compatibility description: 1118858-05 belongs to HEIDENHAIN original measuring cable series. Compatible with ERN, EQN, ROQ series rotary encoders. Suitable for Fives Giddings & Lewis PIC900 CNC heavy boring mill spindle encoder connection.

Function

Function description: 1118858-05 is pre-assembled encoder cable manufactured by HEIDENHAIN. Twisted pair and full shielding design maintain signal integrity for high-resolution position signals, avoid signal distortion under strong electromagnetic environment. Oil-resistant PUR jacket adapts to workshop coolant environment. Pre-crimped connector reduces on-site wiring error. It is essential spare part for encoder signal transmission on heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off all power supply. Lay cable inside cable trunking, keep distance from high-power motor cables. Plug M23 connector into encoder and drive respectively, tighten locking ring. Secure cable with cable ties to eliminate tensile stress. Restore power and run encoder communication test.

Interface

Interface list: M23 circular connector, power and measuring signal terminals, no LED indicators for 1118858-05.

Diagnostic

Troubleshooting: No encoder signal: Check connector locking, cable breakage or pin damage. Intermittent signal loss: Cable abrasion, tensile load or poor shielding grounding. Short circuit: Coolant ingress into connector, damaged cable insulation.

Product Brief

Brief description: 1118858-05 HEIDENHAIN pre-assembled shielded encoder cable with M23 connector,used for power and measuring signal transmission between rotary encoder and CNC drive system for heavy CNC boring mill,encoder cable spare.