Omron R88M-K20030H-S2 — Drive
SKU: R88M-K20030H-S2USD 166.00
Accurax G5-series AC servo motor, 200 W at 3000 rpm, 0.64 Nm rated / 1.91 Nm peak torque, 200 V class, 20-bit incremental encoder, straight keyed shaft, no brake, single-phase 230 VAC drive.
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Product Overview
The R88M-K20030H-S2 is the 200 W member of Omron's Accurax G5 servo-motor family — the entry point in the 200 V class lineup, sitting between the 100 W R88M-K10030H-S2 and the 400 W R88M-K40030H-S2. It delivers 0.64 Nm of rated torque at 3000 rpm with a peak torque of 1.91 Nm (300 % of rated) for fast acceleration and deceleration profiles, more than enough for the small-format packaging, labelling, indexing, and pick-and-place stations that typically use a 200 W axis.
S2 vs BS2 vs T-suffix siblings
The S2 suffix describes the shaft and brake: S2 = straight shaft with keyway, no brake. BS2 (e.g. R88M-K20030H-BS2) = straight keyed shaft with a 24 VDC holding brake for vertical-axis applications where the load must not drop when the motor is de-energised. The -T suffix (e.g. R88M-K20030T-S2) = 17-bit absolute encoder with battery backup so the axis retains position through power cycles. Pick the S2 for the common case of a horizontal axis that homes on every start. Pick BS2 for vertical axes (Z-axis on a pick-and-place, lift on a labelling machine).
Mechanical integration
The R88M-K20030H-S2 has a 60 × 60 mm flange (LC dimension) and uses a 50 mm pilot diameter, the standard for 200 W class servo motors. Total length is approximately 110 mm without brake and weight is around 1 kg — small enough for a small Cartesian robot arm, the index drum on a labelling machine, the small slide on a desktop dispensing unit, or the conveyor-tracking axis on a small-format packaging line.
Pairing with the drive and controller
Pair the R88M-K20030H-S2 with an R88D-KN02H-ECT (EtherCAT) or R88D-KT02H (Mechatrolink-II / pulse-train) G5 servo drive from the same family. Through EtherCAT on an NJ501 or NX102 controller, the motor delivers position, velocity, and torque loops with a 1 kHz update rate. The drive's built-in safety STO reaches PL d per ISO 13849-1. For commissioning, load the G5-series electronic data sheet (EDS) in Sysmac Studio; the motor's torque, inertia, and encoder parameters populate automatically, and the auto-tuning routine adjusts the velocity / position gains in seconds once the motor is bolted to its load.
Key Features
- 200 W rated output at 3000 rpm, 0.64 Nm rated torque
- Peak torque 1.91 Nm for high-acceleration moves
- 20-bit incremental encoder, 1,048,626 pulses per revolution
- 200 V class drive, single-phase 230 VAC compatible
- Straight shaft with keyway and M3 tapped hole for coupling
- Pairs with R88D-KN02H-ECT EtherCAT drive or R88D-KT02H M-II drive
- Compatible with NJ501-1300 / NJ501-1400 / NX102-1000 controllers via EtherCAT
- 60 × 60 mm flange, 110 mm length, ~1 kg
- SKU: R88M-K20030H-S2
- Series: Accurax G5 (R88M-K)
- Voltage: 230 V
- I/O: 200 I/O
Best-Fit Applications
- Index drum drive on a small labelling machine positioning labels under the applicator
- Registration axis on a label applicator compensating for web-speed variations
- Cross-slide on a desktop dispensing unit moving the dispense head in X and Y
- Rotary table on a small assembly cell indexing parts between stations
Buying Checklist
- Pick R88M-K20030H-S2 for a 200 W 200 V axis with 20-bit incremental encoder and no brake
- Pick R88M-K20030H-BS2 if the axis is vertical and needs a 24 VDC holding brake
- Pick R88M-K20030T-S2 if you need absolute position retention through power cycles
- Pick R88M-K20030F-S2 if your drive bus is 400 V three-phase
- Pick R88M-K40030H-S2 for the next step up at 400 W
- Order the R88A-CSK08S flexible coupling or equivalent jaw-coupling matched to the 8 mm shaft
Technical Specifications
| Model | R88M-K20030H-S2 |
|---|---|
| Series | Accurax G5 (R88M-K) |
| Type | AC servo motor |
| Rated Output | 200 W |
| Rated Speed | 3000 rpm |
| Rated Torque | 0.64 Nm |
| Peak Torque | 1.91 Nm |
| Rated Current | 1.5 A rms |
| Instantaneous Max Current | 4.7 A rms |
| Drive Supply Voltage | 230 V single phase |
| Encoder Resolution | 1,048,626 pulses/rev |
Resources & Downloads
FAQ for R88M-K20030H-S2
What drive pairs with the R88M-K20030H-S2?
Any G5-series drive rated for 200 W at 200 V single phase. The most common pairings are R88D-KN02H-ECT (EtherCAT, for NJ501 / NX102 controllers) and R88D-KT02H (Mechatrolink-II or pulse-train, for CJ2 or standalone applications). For 400 V three-phase drives, order the 400 V variant R88M-K20030F-S2 and pair it with an R88D-KN02F-ECT drive.
Does the R88M-K20030H-S2 come with a brake?
No — the S2 suffix means straight keyed shaft, no brake. If the axis is vertical and you need a holding brake for power-off safety, order the R88M-K20030H-BS2 instead — same motor, but with a 24 VDC spring-engaged holding brake rated to hold the rated torque when de-energised.
What is the difference between H, T, F, and C encoder suffixes?
H = 200 V + 20-bit incremental encoder. T = 200 V + 17-bit absolute encoder with battery backup. F = 400 V + 20-bit incremental. C = 400 V + 17-bit absolute. Pick H for the most common case (a 200 V axis that homes on every start). Pick T when you want to skip homing at restart. Pick F or C if your drive bus is 400 V three-phase.
What IP rating is the R88M-K20030H-S2?
IP65 on the motor body and cable connector face — dust-tight and protected against low-pressure water jets. The shaft seal is splash-proof, not submersible. For food-processing or outdoor applications where the motor may be hosed down, fit an Omron IP67 cable gland kit and mount the motor with the connector facing down.
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