Part of the Omron Servo series — see the full model table, lifecycle status and replacement parts.
Omron R88D-1SN02H-ECT — 200W 1S Servo, EtherCAT
SKU: R88D-1SN02H-ECTUSD 235.00
is a 1S-series 200W servo drive with 1-phase 200 VAC input, built-in EtherCAT, 23-bit encoder
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Product Overview
The Omron R88D-1SN02H-ECT is the 200W variant in Omron's 1S-series servo drive line — the current generation (2018+) that replaced the Accurax G5 and earlier Sigma lines. manufactured by Omron Corporation. Hengyixin Automation ships this drive from Xiamen with the matching motor or PSU pairing recommended in the related products row below.
The model code breaks down as: R88D = drive, 1S = 1S-series, N = battery-less absolute encoder, 02 = 200W, H = single-phase 200 VAC input, ECT = EtherCAT interface. The 1S series' main advantage over the older Accurax G5 is integrated safety: STO (Safe Torque Off), SS1 (Safe Stop 1), and SLS (Safe Limited Speed) all run over EtherCAT via FSoE (Fail Safe over EtherCAT), eliminating the need for separate safety wiring and safety contactors.
The integrated EtherCAT safety is the key differentiator for machines that need SIL2/PLd stopping without external safety relays.
Key Features
- Single-phase 200–230 VAC input
- 200 W continuous output at 3000 rpm motor class
- Cycle times down to 250 µs
- EtherCAT CoE — standard CIA 402 profile
- SKU: R88D-1SN02H-ECT
- Series: Accurax G5 (R88D-1SN)
- Voltage: 230 VAC
Best-Fit Applications
- Print and converting machinery with web tension control and registration
- Precision positioning on packaging lines for filling, capping, and labelling stations
- Electronic assembly pick-and-place with 125 µs EtherCAT coordinated motion
Buying Checklist
- Built-in STO/SS1/SLS over FSoE eliminates external safety wiring and contactors
- Push-In Plus terminals save 30-50% panel build time vs screw-type servo drives
- Auto motor recognition via electronic nameplate — no manual parameter setup for motor pairing
Technical Specifications
| Series | Accurax G5 (R88D-1SN) |
|---|---|
| Model | R88D-1SN02H-ECT |
| Drive type | EtherCAT servo drive |
| Continuous output | 200 W |
| Applicable motor | R88M-1M20030T / R88M-1M20030T-B (200 VAC, 3000 rpm) |
| Input voltage | Single-phase 200–230 VAC, 50/60 Hz |
| Control method | PWM sine-wave, IGBT |
| Encoder feedback | 23-bit battery-less absolute multi-turn encoder |
| Communication | EtherCAT (CoE, CIA 402 drive profile) |
| Operating temperature | 0 °C to +55 °C |
| Storage temperature | -20 °C to +65 °C |
| Mounting | DIN rail or panel mount |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for R88D-1SN02H-ECT
What's the difference between 1S and Accurax G5 servo drives?
1S is the current generation (2018+); G5 is the previous generation (2012-2018). The 1S has built-in STO/SS1/SLS safety over FSoE, battery-less 23-bit absolute encoder, and 125 µs EtherCAT cycle. The G5 needs external safety wiring and a battery for absolute encoders. The 1S is the recommended pick for new designs; the G5 remains in production for legacy support.
Can R88D-1SN02H-ECT work with non-EtherCAT controllers?
No — the 1S series is EtherCAT-only. For EtherNet/IP, Modbus TCP, or analog pulse command, use the G5 series (R88D-KN) or the older Sigma II/III/5 drives. The 1S is specifically for high-performance EtherCAT systems with NJ501 or NX102 master controllers.
Do I need a battery for the absolute encoder?
No — the 1S uses a battery-less multi-turn absolute encoder. The multi-turn count is maintained by an electronic counter that draws a small standby current from the drive's 24 VDC control power supply. As long as control power is maintained, position is retained across power cycles. If control power is lost, position must be re-homed on next power-up.
What's the safety level of the integrated STO?
The 1S STO over FSoE achieves PLd (Performance Level d) per EN ISO 13849-1 and SIL2 per IEC 62061. This is sufficient for most machine guarding applications — guard doors, light curtains, e-stops. For PLe / SIL3, you need additional external monitoring or step up to a safety controller like the NX-SL5500.
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