Omron R88M-1M40030H-S2 1S AC Servo Motor

Description

• Model breakdown​ (Omron 1S naming):
  • R88M-1​ = 1S series AC servo motor
  • M400​ = 400W​ rated output (0.4kW)
  • 30​ = 3000 rpm​ rated speed
  • H​ = 230V class​ (single-phase 200–240V drive supply)
  • S​ = Motor variant code (in 1S series, “S” denotes standard incremental encoder type)
  • 2​ = 23-bit incremental encoder​ (high-resolution, 8,388,608 pulses/rev)
  • → R88M-1M40030H-S2 = 1S series 400W servo motor, 3000rpm, 230V class, 23-bit incremental encoder, no brake, no oil seal

💡 “S2” suffix = 23-bit incremental encoder, NOT a brake!​ Many buyers confuse this with brake-equipped models. In the Omron 1S family:

• R88M-1M40030H-S2​ (this unit) = No brake, 23-bit incremental encoder
• R88M-1M40030H-BS2​ = With brake, 23-bit incremental encoder

If your application is a vertical axis​ (requires holding brake for safety when power is lost) → you need the -BS2​ variant, NOT this -S2. This -S2 is for horizontal axes / non-gravity-load applications.

⚠️ 1S series = EtherCAT ONLY!​ The R88M-1M40030H-S2 is designed exclusively​ for EtherCAT communication with R88D-1SN-ECT​ drives. It is NOT compatible​ with:

• Omron G5 series drives (R88D-KN / R88D-GN) — those use R88M-G series motors
• Omron G-series legacy drives (R88D-MN) — those use R88M-K series motors
• Non-Omron drives (Mitsubishi, Yaskawa, Panasonic) — different encoder protocol

This motor must​ pair with an R88D-1SN04-ECT​ (400W EtherCAT drive) or the multi-axis R88D-1SN-ECT​ chassis drive with 400W power stage. The 1S architecture is “one motor = one dedicated drive module” — no mixing.

⚠️ Not the same as G5!​ Some distributors incorrectly list this as “G5 series” — that is WRONG. The 1S series (R88M-1M…)​ is Omron’s newer platform launched ~2018, succeeding G5. While G5 (R88M-G…) also uses EtherCAT in some variants, the R88M-1M40030H-S2 is specifically a 1S motor​ and only works with 1S drives (R88D-1SN-ECT). Attempting to connect to a G5 drive will fail — different encoder electrical interface and firmware.

Key Features

• 23-bit incremental encoder​ (8,388,608 ppr) — ultra-fine resolution for smooth, precise motion
• Compact & lightweight​ — 60mm square flange, 14mm shaft, only 1.3 kg (vs G5 which was heavier)
• High torque density​ — 1.27 Nm rated / 4.5 Nm peak from a 400W package
• Pre-assembled motor cables​ — designed for easy EMC compliance, reduces wiring errors
• Battery-free absolute multi-turn option​ (in other 1S variants) — this -S2 is incremental, but the 1S platform supports 16-bit (65536 turns) multi-turn without mechanical counters
• EtherCAT servo control​ — CiA402 drive profile, full compliance with CoE (CAN over EtherCAT)
• Keyed shaft with tap​ (M14×1.5 thread) — secure coupling connection, prevents slippage
• No brake, no oil seal​ — for clean environments; vertical-axis applications need -BS2 variant

Technical Specifications (R88M-1M40030H-S2 — 1S Series, 400W, 230V, 23-bit Inc.)

⚠️ Critical compatibility checklist:

1. Drive must be R88D-1SN-ECT​ — 400W drive is R88D-1SN04-ECT. Using G5 drive (R88D-KN04-ECT) will NOT work — different encoder interface.
2. No brake in this model​ — If vertical axis or holding torque needed during power loss → order R88M-1M40030H-BS2​ (brake version).
3. Incremental encoder (23-bit)​ — Not absolute. If you need absolute positioning (no homing required) → 1S series also offers battery-free absolute multi-turn variants (look for “-□S2” with absolute encoder option).
4. 230V single-phase drive supply​ — The drive (R88D-1SN04-ECT) takes 230VAC single-phase input; the motor itself runs on 3-phase 230V from the drive output. Don’t confuse: motor winding is 230V 3φ class.
5. EtherCAT master required​ — This motor (via its drive) speaks EtherCAT only. Your machine controller must have EtherCAT master (Omron NJ/NX series, Beckhoff, Omron NX1P2, etc.). For other buses, 1S won’t work — use G5 instead.

Warranty & After-Sales

• Factory new units: 12 months warranty
• Refurbished units: 3-6 months warranty (bench: connect to R88D-1SN04-ECT drive → EtherCAT master (NJ/NX) → jog forward/reverse → verify 23-bit encoder feedback count → rated torque test at 3000rpm → insulation test → shaft runout <0.01mm)
• Technical support for:
  • Drive pairing​ (R88M-1M40030H-S2 MUST pair with R88D-1SN04-ECT​ 400W EtherCAT drive — single-axis; or R88D-1SN-ECT multi-axis chassis with 400W module. We can supply both as a kit.)
  • Brake vs no-brake​ (this -S2 has NO brake — horizontal axes only; vertical axes → R88M-1M40030H-BS2; we stock both)
  • Encoder type clarification​ (23-bit incremental — for absolute positioning without homing, 1S series offers battery-free absolute multi-turn; if you need that, we cross to the absolute variant)
  • Cable selection​ (1S motor power/encoder combo cable: R88A-CA1A001-5SF-E​ (1.5m), R88A-CA1A003SF-E​ (3m), R88A-CA1A005SF-E​ (5m), R88A-CA1A010SF-E​ (10m) — pre-assembled, EMC-compliant, for 100–750W 230V motors)
  • EtherCAT first-commission​ (NJ/NX → Sysmac Studio → EtherCAT config → scan → R88D-1SN04-ECT auto-detect → motor auto-ID → tuning-less auto-tune → 1.27Nm @ 3000rpm verified)
  • 1S vs G5 migration​ (if upgrading from G5 R88M-G40030H-S2 → 1S R88M-1M40030H-S2, the drive changes from R88D-KN04-ECT to R88D-1SN04-ECT; motor mounting is similar (60mm flange) but cable connector differs — rewiring needed; performance gain: 23-bit vs 20-bit encoder, lighter weight, better EMC)
  • Multi-axis systems​ (up to 6 axes on one R88D-1SN-ECT chassis drive — 400W + 750W + 200W etc. mix; we can configure the chassis + modules + motors as a complete kit)
• Optional: R88D-1SN04-ECT drive (400W), motor cables (R88A-CA1Axxx-SF-E 1.5/3/5/10m), EtherCAT master (Omron NJ501/NX1P2), 24V DC PSU for drive control circuit, brake resistor (if regen needed), absolute encoder upgrade variant

Delivery Time

• Standard delivery: 3-5 working days (stock NOS — 1S series is current production, generally available)
• Express shipping available upon request
• Note: Some distributors show out-of-stock on this specific model — we maintain NOS inventory; if temporarily depleted, lead time from Omron ~2-3 weeks

Why Choose Our Store

• Genuine Omron 1S R88M-1M40030H-S2 — not gray-market (23-bit encoder calibration & EtherCAT PHY & 1.27Nm torque constant critical — clones fail EtherCAT conformance and jitter at high-speed)
• Global supply network with competitive pricing on Omron 1S full range (R88M-1M050/100/200/400/750, R88M-1L1K/1K5/2K/3K/4K/5K + R88D-1SN-ECT drives)
• Expertise in 1S system (R88M-1M40030H-S2 decode, R88D-1SN04-ECT pairing, S2 vs BS2 brake choice, 23-bit incremental vs absolute, cable selection R88A-CA1Axxx-SF-E, EtherCAT first-commission with Sysmac Studio, 1S vs G5 migration, multi-axis chassis configuration)
• Comprehensive technical documentation (1S dimension drawings, R88D-1SN04-ECT connection diagram, cable pinout, Sysmac Studio EtherCAT setup guide, 1S vs G5 cross-reference, brake resistor sizing)
• Responsive customer service and support

Applications

• Horizontal Axis Precision Positioning (Semiconductor / PCB): 400W 1S motor on a linear stage for high-speed pick-and-place — 23-bit incremental encoder (8.4M ppr) gives sub-micron repeatability at 3000rpm; EtherCAT ensures deterministic sync with other axes (≤1µs jitter). Tuning-less auto-tune handles varying payloads.
• Packaging Machine Indexing / Filling: 400W axis for rotary indexing table or filling station — 1.27Nm rated / 4.5Nm peak accelerates fast; EtherCAT CoE integrates seamlessly with Omron NJ controller; no brake needed (horizontal axis).
• Robotics Joint (horizontal articulated): 400W for robot elbow/shoulder joint (non-gravity axis) — compact 1.3kg motor reduces arm inertia; 230V single-phase drive supply simplifies cabinet power (no 3φ needed at 400W).
• CNC / Laser Marking Gantry: X-Y axis drive — 1S 400W motors paired with R88D-1SN04-ECT drives on EtherCAT network; 3000rpm max speed covers fast traverse; 23-bit encoder for fine interpolation.
• 1S Retrofit / Spare for New Machines: For OEMs building new machines with Omron NJ + EtherCAT — this is the standard 400W motor. Also serves as spare for existing 1S-based equipment. Direct replacement for any R88M-1M40030H-S2 in field.
• G5 → 1S Upgrade: Replacing older G5 R88M-G40030H-S2 — 1S offers 23-bit (vs 20-bit) encoder, lighter (1.3kg vs ~1.8kg), better EMC (pre-assembled cables), and improved tuning algorithms. Requires R88D-1SN04-ECT drive swap (from R88D-KN04-ECT). Performance gain justifies migration for high-precision applications.