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HEIDENHAIN ERN1387 2048 62S14-70
Unique Order ID：749 144 59
- Complete Model Segment Definition
| Field | Code | Technical Description |
| ERN | Serie | Incremental hollow-shaft rotary encoder, dedicated for servo / c |
| 1387 | Produktserie | Classic HEIDENHAIN CNC servo encoder, 1 Vpp sine/cosine output, high speed and durability |
| 2048 | Auflösung | Pulses per revolution: 2048 lines/rev |
| 62S14 | Structure Code | Standard code for electrical specifications, housing structure, wiring definition and mounting dimensions |
| 70 | Version / Cable Length | Factory cable specification and customized structural version |
| ID：74914459 | Factory Order Number | Unique single-item coding for genuine original factory matching |
- Technische Kernparameter
- Output Signal: /cosine differential signals (A±, B±, R reference mark)
- Versorgungsspannung: DC 5V ±10%
- Shaft Structure: Φ10mm hollow shaft, spring clamping mounting (universal for servo motors)
- Max Speed: 15000 r/min (suitable for machine tool spindles & high‑speed servo systems)
- Reference Signal: 1 reference mark R per revolution
- Schutz vor Eindringen: IP40
- Betriebstemperatur: -20℃ ~ +60℃
- Wiring Type: 12-core shielded dedicated cable, anti-interference for CNC systems
- Messprinzip: Photoelectric transmission scanning, high precision and low drift
III. Compatible Systems & Anwendung
Compatible Systems: Siemens, FANUC, Mitsubishi, Huazhong CNC, GSK, gantry & machining center systems
Hauptanwendungen:
- Speed & position closed-loop feedback for CNC spindle motors and servo motors
- Spindle positioning for machining centers, lathes, milling machines, grinders and automated equipment
- High-precision angle acquisition for high-speed servo drives and industrial automation
- Common Derivative Models (Comparison)
- ERN1387 2048 62S12: Standard general version
- ERN1387 2048 62S14-70: Model in use, customized cable & structure version
- ERN1387 1024 / 4096: Different resolution options
- Equivalent Upgrade: EQN1387 (multi-turn absolute type)
- Ersatz & Beschaffungshinweise
- Originalersatz: Must order by ID：74914459 to avoid mismatched program and servo parameters
- Domestic Compatible Alternatives
Matching Brands: Rep, Yuheng, Haide, Eastest
Parameter Requirements: 10mm hollow shaft, 2048 lines, 1Vpp sine/cosine, 12-core shielded cable
- Common Failures: Cable breakage, code disk contamination, signal attenuation, bearing aging; classified as machine tool wearing parts
- Key Information Summary (Quick Filing)
Marke: Heidenhain
Modell: ERN 1387 2048 62S14-70
ID: 74914459
Spezifikationen: 2048 lines, DC5V, 1Vpp differential, Φ10mm hollow shaft
Usage: CNC spindle / servo motor encoder
HEIDENHAIN Encoder Model List & Cross-Brand Comparison Manual (2026 Ausgabe)
- Complete Model Nomenclature Explanation
1.1 Incremental Hollow-Shaft Encoder (ERN Series)
ERN-XXXX-YYYY-ZZZZ
| Field | Definition | Beispiel | Beschreibung |
| ERN | Series Code | ERN | Incremental hollow-shaft encoder for servo / spindle |
| XXXX | Produktserie | 1387 | 1000 Serie: 1Vpp output, high speed durable (15000U/min) |
| YYYY | Auflösung | 2048 | Pulses per revolution (lines/rev) |
| ZZZZ | Structure Code | 62S14-70 | Electrical specs, mounting size, wiring definition, cable length |
| ID | Factory Part No. | 74914459 | Exclusive matching code for genuine products |
1.2 Absolute Hollow-Shaft Encoder (ECN / EQN Series)
ECN/EQN-XXXX-YYYY-ZZZZ
| Field | Definition | Beispiel | Beschreibung |
| ECN/EQN | Series Code | ECN | Absolute hollow-shaft encoder, single-turn / multi-turn |
| XXXX | Produktserie | 1313 | 1000 Serie: built-in bearing, stator coupling |
| YYYY | Auflösung | 13 | 13-bit (8192 positions/rev) |
| ZZZZ | Schnittstelle / Version | 03S12 | Interface protocol (EnDat/SSI) & structural code |
| S | Safety Version | 1336S | Functional safety (SIL3) |
1.3 Solid-Shaft Angle Encoder (ROD / ROC Series)
ROD/ROC-XXXX-YYYY
| Field | Definition | Beispiel | Beschreibung |
| ROD/ROC | Series Code | ROD | Solid-shaft angle encoder for high-precision measurement |
| XXXX | Produktserie | 426 | Solid shaft structure, flange mounting |
| YYYY | Auflösung | 1024 | Pulses or bits per revolution |
| A | Absolute Version | ROD 436A | Absolute solid-shaft encoder |
1.4 Bearingless Encoder (KCI / KBI Series)
KCI/KBI-XXXX-YYYY
| Field | Definition | Beispiel | Beschreibung |
| KCI/KBI | Series Code | KCI | Bearingless absolute rotary encoder |
| XXXX | Produktserie | 120 Dplus | Inductive scanning, functional safety design |
| YYYY | Auflösung | 13 | 13-bit (8192 positions/rev) |
| Dplus | Dual Measuring System | KCI 120 Dplus | Dual position detection function |
- Full HEIDENHAIN Encoder List by Series
2.1 Incremental Hollow-Shaft Encoder (ERN Series)
| Serie | Modell | Auflösung | Shaft Dia. | Ausgabe | Max Speed | Schnittstelle | IP Rating | Sample ID |
| ERN 1000 | ERN 1387 2048 62S14-70 | 2048 lines | Φ10mm | 1Vpp differential | 15000U/min | 12-Kern | IP40 | 74914459 |
| ERN 1387 1024 62S12 | 1024 lines | Φ10mm | 1Vpp differential | 15000U/min | 12-Kern | IP40 | 74914458 | |
| ERN 1387 4096 62S14 | 4096 lines | Φ10mm | 1Vpp differential | 12000U/min | 12-Kern | IP40 | 74914460 | |
| ERN 1120 512 62S12 | 512 lines | Φ8mm | 1Vpp differential | 10000U/min | 12-Kern | IP40 | 74914352 | |
| ERN 1180 1024 62S12 | 1024 lines | Φ8mm | 1Vpp differential | 10000U/min | 12-Kern | IP40 | 74914353 | |
| ERN 400 | ERN 420 2500 03S12 | 2500 lines | Φ10mm | 1Vpp differential | 8000U/min | 12-Kern | IP40 | 74914250 |
| ERN 430 5000 03S12 | 5000 lines | Φ10mm | 1Vpp differential | 6000U/min | 12-Kern | IP40 | 74914251 | |
| ERN 100 | ERN 138 2048 03S12 | 2048 lines | Φ6mm | 1Vpp differential | 6000U/min | 12-Kern | IP40 | 74914138 |
2.2 Absolute Hollow-Shaft Encoder (ECN / EQN Series)
| Serie | Modell | Auflösung | Shaft Dia. | Schnittstelle | Max Speed | Typ | IP Rating | Sample ID |
| ECN 1300 | ECN 1313 13 03S12 | 13-bit(8192) | Φ10mm | EnDat 2.2 | 10000U/min | Single-turn | IP40 | 74913130 |
| ECN 1325 13 03S12 | 13-bit(8192) | Φ10mm | EnDat 2.2 | 10000U/min | Single-turn | IP40 | 74913250 | |
| ECN 1313 13 07S12 | 13-bit(8192) | Φ10mm | SSI | 10000U/min | Single-turn | IP40 | 74913131 | |
| EQN 1300 | EQN 1325 2048 03S12 | 2048 lines | Φ10mm | EnDat 2.2 | 10000U/min | Single-turn | IP40 | 74913251 |
| EQN 1337 2048 03S12 | 2048 lines | Φ10mm | EnDat 2.2 | 10000U/min | Multi-turn | IP40 | 74913370 | |
| ECN 400 | ECN 413 13 03S12 | 13-bit(8192) | Φ10mm | EnDat 2.2 | 8000U/min | Single-turn | IP40 | 74914130 |
| EQN 400 | EQN 425 2048 03S12 | 2048 lines | Φ10mm | EnDat 2.2 | 8000U/min | Multi-turn | IP40 | 74914252 |
2.3 Solid-Shaft Angle Encoder (ROD / ROC Series)
| Serie | Modell | Auflösung | Shaft Dia. | Ausgabe | Max Speed | Montage | IP Rating | Sample ID |
| ROD 400 | ROD 426 1024 | 1024 lines | Φ10mm | 1Vpp differential | 6000U/min | Flansch | IP54 | 74914260 |
| ROD 436 2048 | 2048 linesΦ | 10mm | 1Vpp differential | 6000U/min | Flansch | IP54 | 74914360 | |
| ROD 436A 13 | 13-bit(8192) | Φ10mm | EnDat 2.2 | 6000U/min | Flansch | IP54 | 74914361 | |
| ROD 600 | ROD 620 1024 | 1024 lines | Φ10mm | 1Vpp differential | 5000U/min | Flansch | IP54 | 74916200 |
| ROC 2000 | ROC 220 1024 | 1024 lines | Φ10mm | 1Vpp differential | 5000U/min | Flansch | IP54 | 74922200 |
2.4 Bearingless Encoder (KCI / KBI Series)
| Serie | Modell | Auflösung | Shaft Dia. | Schnittstelle | Max Speed | Scan Type | IP Rating | Sample ID |
| KCI 120 | KCI 120 Dplus 13 | 13-bit(8192) | Φ30mm | EnDat 2.2 | 10000U/min | Inductive | IP64 | 74912013 |
| KCI 120 Dplus 17 | 17-bit(131072) | Φ30mm | EnDat 2.2 | 10000U/min | Inductive | IP64 | 74912017 | |
| KBI 100 | KBI 106 13 | 13-bit(8192) | Φ20mm | EnDat 2.2 | 8000U/min | Inductive | IP64 | 74910613 |
2.5 Angle Encoder (RCN / RON Series)
| Serie | Modell | Auflösung | Shaft Dia. | Schnittstelle | Genauigkeit | Montage | IP Rating | Sample ID |
| RCN 2000 | RCN 2001 26 03S12 | 26-bit | Φ20mm | EnDat 2.2 | ±2 arcsec | Stator coupling | IP64 | 74920010 |
| RCN 5001 28 03S12 | 28-bit | Φ35mm | EnDat 2.2 | ±1 arcsec | Stator coupling | IP64 | 74950010 | |
| RON 700 | RON 785 25 03S12 | 25-bit | Φ30mm | EnDat 2.2 | ±1 arcsec | Flansch | IP64 | 74978500 |
III. Cross-Brand Replacement Reference
3.1 Incremental Encoder (ERN Series Replacement)
| Heidenhain | Siemens | FANUC | Mitsubishi | Yaskawa | Inländische Alternative | Replacement Key Points |
| ERN 1387 2048 62S14-70 | 6FX2001-5QS22 | A860-0309-T302 | OSA104 | UTOPH-8192-2048 | Yuheng A-ZKD-1387-2048 / Rep A-1387-2048 | 10mm hollow shaft, 2048 lines, 1Vpp, 12-Kern |
| ERN 1387 1024 62S12 | 6FX2001-5QS21 | A860-0309-T301 | OSA103 | UTOPH-8192-1024 | Huitong HT-1387-1024 | 10mm hollow shaft, 1024 lines, 1Vpp |
| ERN 1120 512 62S12 | 6FX2001-5QS12 | A860-0309-T300 | OSA102 | UTOPH-8192-512 | Huali HL-1120-512 | 8mm hollow shaft, 512 lines |
| ERN 420 2500 03S12 | 6FX2001-5QS02 | A860-0309-T310 | OSA105 | UTOPH-8192-2500 | Eastest EST-420-2500 | 10mm hollow shaft, 2500 lines |
3.2 Absolute Encoder (ECN / EQN Series Replacement)
| Heidenhain | Siemens | FANUC | Mitsubishi | Yaskawa | Inländische Alternative | Replacement Key Points |
| ECN 1313 13 03S12 | 6FX2001-8QS13 | A860-0309-T320 | OSA204 | UTOPH-8192-13 | Yuheng A-ECN1313-13 | 10mm hollow shaft, 13-bit, EnDat 2.2 |
| EQN 1337 2048 03S12 | 6FX2001-8QS22 | A860-0309-T322 | OSA205 | UTOPH-8192-2048M | Rep A-EQN1337-2048 | 10mm hollow shaft, multi-turn |
| ECN 413 13 03S12 | 6FX2001-8QS03 | A860-0309-T313 | OSA203 | UTOPH-8192-13S | Huali HL-ECN413-13 | 10mm hollow shaft, single-turn |
| EQN 1336S 2048 03S12 | 6FX2001-8QS22S | A860-0309-T322S | OSA205S | UTOPH-8192-2048MS | Eastest EST-EQN1336S | SIL3 safety, DRIVE-CLiQ |
3.3 Solid-Shaft Encoder (ROD Series Replacement)
| Heidenhain | Siemens | FANUC | Mitsubishi | Yaskawa | Inländische Alternative | Replacement Key Points |
| ROD 426 1024 | 6FX2001-5FS21 | A860-0309-T351 | OSA106 | UTOPH-8192-1024S | Yuheng A-ROD426-1024 | 10mm solid shaft, flange mount |
| ROD 436 2048 | 6FX2001-5FS22 | A860-0309-T352 | OSA107 | UTOPH-8192-2048S | Rep A-ROD436-2048 | 10mm solid shaft, 2048 lines |
| ROD 436A 13 | 6FX2001-8FS13 | A860-0309-T353 | OSA206 | UTOPH-8192-13S | Huali HL-ROD436A-13 | 10mm solid shaft, absolute type |
3.4 Bearingless Encoder (KCI Series Replacement)
| Heidenhain | Siemens | FANUC | Mitsubishi | Yaskawa | Inländische Alternative | Replacement Key Points |
| KCI 120 Dplus 13 | 6FX2001-8KS13 | A860-0309-T360 | OSA207 | UTOPH-8192-13D | Rep A-KCI120-13 | 30mm hollow shaft, inductive |
| KBI 106 13 | 6FX2001-8KS06 | A860-0309-T361 | OSA208 | UTOPH-8192-13B | Yuheng A-KBI106-13 | 20mm hollow shaft, inductive |
- Selection Parameter Comparison
4.1 Interface Protocol Comparison
| Schnittstelle | Applicable Series | Transmission | Merkmale | Compatible Systems |
| 1Vpp Sine/Cosine | All ERN Series | Analog | Strong anti-interference, hohe präzision | Siemens 840Dsl, FANUC 0i/31i, Mitsubishi M70 |
| EnDat 2.2 | ECN/EQN Full Range | Digital Serial | Single/multi-turn, parameter configuration | HEIDENHAIN TNC, Siemens 840Dsl, FANUC 31i |
| SSI | Partial ECN/EQN | Digital Serial | Simple and stable, single-turn | Mitsubishi M70, FANUC 0i, domestic CNC |
| DRIVE-CLiQ | ECN/EQN 1300S | Real-time Digital | Functional safety, high speed | Siemens SINAMICS Drive |
| Fanuc Serial | ECN/EQN F Version | Digital Serial | FANUC dedicated protocol | FANUC 0i / 31i / 32i |
| Mitsubishi SSCNET | ECN/EQN M Version | Real-time Digital | Mitsubishi dedicated bus | Mitsubishi M70 / M80 |
4.2 Auflösung & Genauigkeitsgrad
| Auflösung | Anwendungsszenario | Genauigkeit | Typical Industry |
| 1024 lines / 13-bit | Standard servo control | ±10 arcsec | General machine tools, automation |
| 2048 lines / 14-bit | Precision servo control | ±5 arcsec | Machining centers, precision lathes |
| 4096 lines / 15-bit | High-precision positioning | ±3 arcsec | Grinding machines, jig boring machines |
| 8192 lines / 16-bit | Ultra-precision measurement | ±1 arcsec | CMM, semiconductor equipment |
| 13-bit~28-bit Absolute | Full closed-loop absolute control | ±1~2 arcsec | Robotics, aerospace equipment |
- Procurement & Replacement Guideline
5.1 Original Replacement Rules
- Confirm complete model + exclusive factory ID to avoid parameter mismatch
- Match 12-core shielded cable specification and length
- Verify hollow shaft diameter (Φ10mm/Φ8mm), spring clamp type and stator coupling
5.2 Domestic Alternative Selection Criteria
| Replacement Item | Muss übereinstimmen | Einstellbar | Impact Level |
| Mechanical Dimension | Shaft diameter, mounting hole, housing size | — | Kritisch |
| Electrical Parameter | Auflösung, signal type, supply voltage | Kabellänge (±1m) | Kritisch |
| Interface Definition | Pin assignment, shielding method | Connector type | Medium |
| Precision Grade | Angular error, repeatability | Temperature drift | Medium |
5.3 Häufige Fehler & Wartung
- Cable damage / shielding failure → Replace original cable assembly
- Code disk oil contamination & dust accumulation → Professional cleaning (no scratching)
- Poor contact & signal attenuation → Re-terminate wiring and inspect connectors
- Bearing noise & excessive backlash → Replace complete encoder unit
- Quick Selection Table by Application
| Anwendung | Recommended Heidenhain Model | Core Specs | Alternative Marken |
| CNC Machine Spindle | ERN 1387 2048 62S14-70 | 2048 lines, 1Vpp, 10mm hollow shaft | Siemens 6FX2001-5QS22, Yuheng A-ZKD-1387 |
| Servomotor | ECN 1313 13 03S12 | 13-bit, EnDat 2.2, 10mm hollow shaft | FANUC A860-0309-T320, Rep A-ECN1313 |
| High-Precision Positioning | ROD 436 2048 | 2048 lines, 1Vpp, 10mm solid shaft | Mitsubishi OSA107, Huali HL-ROD436 |
| High-Speed Spindle | ERN 1387 4096 62S14 | 4096 lines, 1Vpp, 10mm hollow shaft | Siemens 6FX2001-5QS23, Eastest EST-1387 |
| Functional Safety System | EQN 1336S 2048 03S12 | 2048 lines, DRIVE-CLiQ, SIL3 | Siemens 6FX2001-8QS22, Mitsubishi OSA205S |
| Bearingless Motor | KCI 120 Dplus 13 | 13-bit, EnDat 2.2, 30mm | Siemens 6FX2001-8KS13, Rep A-KCI120 |
Remark: All models are based on the 2026 HEIDENHAIN official catalog. All orders shall be subject to the factory unique ID. Cross-brand replacement requires system compatibility testing to ensure long-term stable operation.
