R88M: Prefix for Omron servo motors
1: 1Serie S (EtherCAT bus servo)
l: 100 mm flange size
1K5: 1.5 kW
30: Velocità nominale 3000 giri/min
T: Battery-free absolute encoder (23-morso)
S2: Without electromagnetic brake, no oil seal, shaft with keyway and tapped hole
Specifiche elettriche principali
| Articolo | Specifica |
| Potenza nominale | 1.5 kW |
| Velocità nominale | 3000 giri/min |
| Coppia nominale | 4.77 N·m |
| Coppia di picco | 14.3 N·m |
| Codificatore | 23-bit Battery-free Absolute Encoder |
| Alimentazione elettrica (Lato guida) | Single-phase AC230V |
| Freno | No Electromagnetic Brake |
| Oil Seal | Nessun paraolio |
| Diametro dell'albero | 19 mm, with flat key and shaft-end tapped hole |
| Flangia | 100 mm square flange |
| Peso netto | 5.7 kg |
| Matching Servo Drive | R88D-1SN15H-ECT (1.5kW EtherCAT Servo Drive) |
Caratteristiche del prodotto
- Battery-free absolute encoder: No backup battery required to retain home position, reducing maintenance and the risk of home position loss. Absolute position is readable immediately after power-on.
- EtherCAT bus servo: The 1S series adopts EtherCAT integrated servo, supporting high-speed real-time bus motion control and suitable for multi-axis synchronous equipment.
- 100 flangia da mm, 19 mm keyed shaft with general mechanical mounting interface, widely used for material handling, gantry systems, manipulators and CNC equipment.
- Non-brake version: Designed for horizontal transmission except vertical axes. For vertical axis applications, select brake-equipped model: R88M-1L1K530T-BS2.
Scenari applicativi tipici
Linee di produzione automatizzate, gantry modules, multi-axis manipulators, montatori di chip, attrezzature per l'imballaggio, custom CNC machines, high-speed positioning platforms.
Selezione & Note di sostituzione
Brake-equipped model with identical power rating: R88M-1L1K530T-BS2
Incremental encoder version: R88M-1L1K530H-S2
The servo drive must be matched: R88D-1SN15H-ECT. Mixing with other series (such as G5, G3) drives is not allowed.
No-oil-seal version: Not applicable to environments with heavy dust or cutting fluid splashes. Additional mechanical protection is required.
Troubleshooting Focus (Common Faults for This Model)
- Home position abnormality: Battery-free absolute encoders rarely lose home position. If encoder alarm occurs, inspect encoder cable and connector pins first.
- Overload alarm: Verify load inertia and acceleration torque. This 1.5kW 3000rpm motor provides 14.3Nm peak torque and allows short-time shock load.
- Shaft end leakage: This model has no oil seal. Do not deploy it in oil-immersed environments.
Campi di applicazione di Omron 1S Series EtherCAT Servo Motors (R88M)
The 1S series features EtherCAT high-speed bus, battery-free 23-bit absolute encoder, ultra-short control cycle (125μs) and built-in STO safety function. It focuses on multi-axis synchronization and high-precision positioning. It is widely deployed for general automation equipment and compatible with NX/NJ motion controllers and Sysmac Studio platform.
- Elettronica & Apparecchiature per semiconduttori (Applicazioni principali)
SMT chip mounters, PCB depanelers, AOI inspection machines, macchine distributrici, soldering machines
Manipolazione dei wafer, imballaggio di semiconduttori, FPC flexible board cutting
Vantaggi: Excellent multi-axis synchronization and trajectory tracking precision; no homing required after power-up to reduce downtime and maintenance.
- Confezione & Food Automation Production Lines
Confezionatrici orizzontali, vertical form fill seal machines, capping machines, etichettatrici, heat sealing machines, sorting conveyors
Food dispensing, carton forming, bundling equipment
Vantaggi: Supports FSoE safety function to realize SLS safe speed limitation. Operators can adjust machines online without full-machine emergency stop, improving uptime.
- 3C & Component Custom Machining Equipment
CNC drilling/tapping special machines, polishing equipment, injection molding manipulators, workpiece transfer gantries
Mobile/laptop housing processing, attrezzature per la pressatura, automatic screw locking machines
Vantaggi: Fast response and low overshoot; stable gantry dual-axis synchronization performance.
- Movimentazione dei materiali & Manipolatori
Cartesian robots, gantry modules, truss loading/unloading, posizionamento del trasportatore, transfer mechanisms
Suggerimento per la selezione: Use brake model (per esempio. R88M-1L1K530T-BS2) for vertical axes; non-brake version R88M-1L1K530T-S2 for horizontal axes.
- Tessile, Stampa & Paper Machinery
Digital textile printers, stampanti flessografiche, die-cutters, paper slitting, avvolgimento & unwinding equipment
Vantaggi: EtherCAT bus ensures tension control and multi-axis synchronization with small fluctuation for winding processes.
- Batteria al litio / New Energy Front-End Equipment
Electrode cutting, roll pressing, avvolgimento, cell handling, auxiliary positioning mechanism for coating
Vantaggi: Battery-free absolute encoder eliminates home position loss caused by battery aging, suitable for long-term continuous production.
- Medico & Test Automation (General Automation Tooling, NOT life-critical medical devices)
Automated test fixtures, sample positioning stages, automated assembly jigs
⚠️ Notice: Not directly applicable to implantable life-support medical equipment, aerospaziale, nuclear power, lifting equipment and other high-safety-level scenarios, as specified in product manual.
Selezione & Note sulla compatibilità
Autobus: Must be paired with R88D-1SNxx-ECT EtherCAT drives and NX/NJ controllers.
Ambiente: S2 models without oil seal are prohibited for environments with cutting fluid and heavy dust splashes.
Sicurezza: Standard drives come with STO; enhanced models support full safety functions including SS1/SS2/SOS. Hardware STO reaches PLe / SIL3; bus FSoE achieves PLd / SIL2.
Vantaggi & Disadvantages of Omron 1S (R88M) EtherCAT Servo
✅Vantaggi
- Battery-free 23-bit multi-turn absolute encoder (Core Highlight)
Absolute position can be read directly after power-on with no homing required. No backup battery completely removes maintenance pain points including battery aging, leakage and home position loss, lowering maintenance cost for long-running production lines.
- EtherCAT high-speed bus with 125μs ultra-short control cycle
Superior performance for multi-axis synchronization, electronic cam and gantry dual-axis following suitable for high-speed precision equipment. Multiple axes can be daisy-chained via single Ethernet cable to reduce wiring greatly. FSoE safety function runs over EtherCAT network to save massive hardwired safety circuits.
- Built-in high-grade safety functions
All drives are equipped with STO as standard. Enhanced versions support full safety functions SS1/SS2/SOS/SLS. Hardware STO achieves PLe / SIL3; bus-based FSoE reaches PLd / SIL2. It meets automation equipment safety specifications and reduces external safety relay configuration.
- TDF 2-DOF control algorithm with powerful auto-tuning
Suppression of overshoot and shortened settling time for low-rigidity loads and high inertia ratio mechanisms. Auto-tuning is available to help stabilize commissioning for less experienced technicians. Models ≤750W reach peak torque up to 350% for strong short-time impact load capacity.
- Integrated Sysmac Platform for high equipment development efficiency
Combined with NX/NJ motion controller and Sysmac Studio software, movimento, safety and logic programming are integrated. Batch parameter copy and built-in data trace facilitate standardized production and fault diagnosis for multiple machine units. Single-cable option (energia + codificatore + brake combined cable) simplifies wiring, and IP67 connectors fit machine installation.
- Wide power coverage
Power range from 50W to 15kW, with low/medium inertia models and complete flange specifications, covering small transfer units to high-power processing equipment.
❌ Disadvantages
- Strong ecosystem binding and poor compatibility with third-party PLCs
Native design prioritizes Omron NX/NJ controllers. Although it adopts standard EtherCAT, deploying it on other brands of EtherCAT masters (Innovazione, Beckhoff etc.) will cause complicated adaptation of partial PDO, electronic cam and FSoE safety functions, leading to high commissioning difficulty instead of plug-and-play. Pulse command is not supported. Replacing controller is required for retrofitting old pulse PLC systems.
- High overall system cost
Motore + drive package price is higher compared with domestic EtherCAT servo products. Cavi, spare parts and repair service cost are also higher than domestic alternatives, with limited cost performance for low-budget simple standalone machines.
- Limitations of default TDF mode for high-order synchronization scenarios
Factory-default TDF mode fits positioning applications, but ODF mode delivers better following error performance for electronic cam, CNC interpolation and master-slave following. Manual control mode switching and speed feedforward configuration are required; unfamiliar technicians may encounter trajectory deviation.
- Restricted environmental version selection
S2 versions have no oil seal, not suitable for direct use under cutting fluid splash and heavy dust environments. Extra protection or alternative models are required for harsh environments. Improper flat key disassembly may damage the encoder.
- Thermal constraints for side-by-side drive installation
For drives ≤3kW mounted closely (spacing<10mm), allowable ambient temperature drops to 0~45℃. Models ≥4kW must reserve ≥40mm spacing between drives, occupying more cabinet space.
- Dedicated commissioning software
Sysmac Studio is mandatory; simple servo commissioning software cannot be used for quick standalone tuning. The software package is large with certain PC configuration requirements, increasing the threshold for on-site offline diagnosis.
✍️ Selection Summary
Recommended for: Sincronizzazione multiasse, alta precisione, safety function required, long-term maintenance-free applications paired with NX/NJ platform for mid-to-high end automation equipment (montatori di chip, gantries, macchine avvolgitrici, attrezzature di ispezione).
Not recommended for: Low-cost simple standalone machines, pulse-based retrofit projects, complex electronic cam applications on non-Omron master stations, progetti a budget limitato.
Full Model List of Omron 1S (R88M-1□) EtherCAT Servo Motors
Spiegazione del codice modello:
R88M-1Inertia CodePowerSpeedEncoder-B(con freno)S2/OS2/O
1l: Bassa inerzia; 1M: Inerzia media
T: Battery-free absolute 23bit; H: Encoder incrementale; C: 400V class battery-free absolute
Suffix S2: Keyed shaft with tapped hole, no oil seal; OS2: Keyed shaft with oil seal; O: Albero liscio
-B: Freno elettromagnetico; no B = without brake
Voltaggio: 200V (single/three phase); C models = 400V three phase
- 200V Class|Low Inertia 1L Series (3000giri/min)
Incremental Encoder H
R88M-1L75030H-S2 / R88M-1L75030H-BS2 |750W
R88M-1L1K030H-S2 / R88M-1L1K030H-BS2 |1.0kW
R88M-1L1K530H-S2 / R88M-1L1K530H-BS2 |1.5kW
R88M-1L2K030H-S2 / R88M-1L2K030H-BS2 |2.0kW
R88M-1L3K030H-S2 / R88M-1L3K030H-BS2 |3.0kW
Battery-free Absolute T (Group including your model)
R88M-1L75030T-S2 / R88M-1L75030T-BS2 |750W
R88M-1L1K030T-S2 / R88M-1L1K030T-BS2 |1.0kW
R88M-1L1K530T-S2 / R88M-1L1K530T-BS2 |1.5kW
R88M-1L2K030T-S2 / R88M-1L2K030T-BS2 |2.0kW
R88M-1L3K030T-S2 / R88M-1L3K030T-BS2 |3.0kW
- 200V Class|Medium Inertia 1M Series
3000rpm|Incremental H
R88M-1M10030H-S2 / R88M-1M10030H-BS2 |100W
R88M-1M20030H-S2 / R88M-1M20030H-BS2 |200W
R88M-1M40030H-S2 / R88M-1M40030H-BS2 |400W
R88M-1M75030H-S2 / R88M-1M75030H-BS2 |750W
3000rpm|Battery-free Absolute T
R88M-1M10030T-S2 / R88M-1M10030T-BS2 |100W
R88M-1M20030T-S2 / R88M-1M20030T-BS2 |200W
R88M-1M40030T-S2 / R88M-1M40030T-BS2 |400W
R88M-1M75030T-S2 / R88M-1M75030T-BS2 |750W
2000rpm|Battery-free Absolute T
R88M-1M1K020T-S2 / R88M-1M1K020T-BS2 |1.0kW
R88M-1M1K520T-S2 / R88M-1M1K520T-BS2 |1.5kW
R88M-1M2K020T-S2 / R88M-1M2K020T-BS2 |2.0kW
1000rpm|Battery-free Absolute T
R88M-1M90010T-S2 / R88M-1M90010T-BS2 |900W
R88M-1M2K010T-S2 / R88M-1M2K010T-BS2 |2.0kW
R88M-1M3K010T-S2 / R88M-1M3K010T-BS2 |3.0kW
III. 400V Three Phase|1L / 1M (C code, 23-bit battery-free absolute)
1L Low Inertia 3000rpm
R88M-1L75030C-S2 / BS2 |750W
R88M-1L1K030C-S2 / BS2 |1.0kW
R88M-1L1K530C-S2 / BS2 |1.5kW
R88M-1L2K030C-S2 / BS2 |2.0kW
R88M-1L3K030C-S2 / BS2 |3.0kW
R88M-1L4K030C-S2 / BS2 |4.0kW
R88M-1L5K030C-S2 / BS2 |5.0kW
1M Medium Inertia
2000giri/min
R88M-1M1K020C-S2 / BS2 |1.0kW
R88M-1M1K520C-S2 / BS2 |1.5kW
R88M-1M2K020C-S2 / BS2 |2.0kW
R88M-1M3K020C-S2 / BS2 |3.0kW
1500giri/min
R88M-1M4K015C-S2 / BS2 |4.0kW
R88M-1M5K515C-S2 / BS2 |5.5kW
R88M-1M7K515C-S2 / BS2 |7.5kW
R88M-1M11K015C-S2 / BS2 |11kW
R88M-1M15K015C-S2 / BS2 |15kW
- Matching Servo Drives R88D-1SNxx-ECT (200V)
R88D-1SN01H-ECT:100W
R88D-1SN02H-ECT:200W
R88D-1SN04H-ECT:400W
R88D-1SN08H-ECT:750W
R88D-1SN10H-ECT:1kW
R88D-1SN15H-ECT:1.5kW
R88D-1SN20H-ECT:2kW
R88D-1SN30H-ECT:3kW
- Matching Servo Drives R88D-1SNxxF-ECT (400V)
R88D-1SN06F-ECT:600W
R88D-1SN10F-ECT:1kW
R88D-1SN15F-ECT:1.5kW
R88D-1SN20F-ECT:2kW
R88D-1SN30F-ECT:3kW
R88D-1SN55F-ECT:5.5kW
R88D-1SN75F-ECT:7.5kW
R88D-1SN110F-ECT:11kW
R88D-1SN150F-ECT:15kW
Supplemento: 1SAN Safety-enhanced Drives (with FSoE Safety)
R88D-1SAN02H/04H/08H/10H/15H/20H/30H-ECT (200V)
R88D-1SAN10F/15F/20F/30F/55F/75F-ECT (400V)
Selection Remarks
- For the same motor body, three shaft-end options available: O (smooth shaft), S2 (keyed shaft without oil seal), OS2 (keyed shaft with oil seal). Only commonly used S2 is listed above.
- -B = Built-in electromagnetic brake. BS2 must be selected for vertical axis applications.
- 100V low-voltage versions (R88D-1SNxxL-ECT,100/200W) are rarely used domestically and excluded from this list.
- 50W small-power 1S motor (R88M-1M05030T) is an early small specification and gradually phased out.
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