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Omron R88M-K2K030H-S2-Z servo motor — sealed cardboard shipping box with Omron label showing TYPE R88M-K2K030H-S2-Z, AC SERVO MOTOR, QTY 1, MADE IN CHINA, Lot 200912BSN

Omron R88M-K2K030H-S2-Z — Drive

SKU: R88M-K2K030H-S2-Z

USD 440.00

Accurax G5-series AC servo motor, 2 kW at 3000 rpm, 6.37 Nm rated / 19.1 Nm peak torque, 200 V class, 20-bit incremental encoder, straight keyed shaft, no brake.

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Product Overview

The R88M-K2K030H-S2-Z is the 2 kW member of Omron's Accurax G5 servo-motor family, sitting between the 1.5 kW R88M-K1K530H-S2-Z and the 3 kW R88M-K3K030H-S2-Z in the 200 V class lineup. It delivers 6.37 Nm of rated torque at 3000 rpm and can briefly reach 19.1 Nm peak (300 % of rated) for fast acceleration and deceleration profiles, which is the envelope that packaging, material-handling, and converting machinery actually demand from a 2 kW axis. The 20-bit incremental encoder (H in the part number) gives 1,048,626 pulses per revolution — more than enough resolution for cut-to-length, registration, and indexing applications where the master controller reads absolute position through a homing sequence at startup.

S2 vs BS2 vs -Z siblings

The S2 suffix describes the shaft and brake: S2 = straight shaft with keyway, no brake. BS2 (e.g. R88M-K2K030H-BS2-Z) = straight keyed shaft with a 24 VDC holding brake for vertical-axis applications. The -Z suffix is the Simulink / Sysmac Studio motor profile, with matched parameter files for drag-and-drop commissioning in Sysmac Studio. If you need absolute position retention through power cycles (no homing required after restart) instead of an incremental encoder, look at the T-suffix motors like R88M-K2K030T-S2-Z with 17-bit absolute encoder and battery backup.

Mechanical integration

The R88M-K2K030H-S2-Z has a 100 × 100 mm flange (LC dimension) and uses the standard 130 mm pilot diameter for 2 kW class servo motors, so it bolts to most gearboxes and pinion mounts without adapter plates. Total length is 187 mm without brake and weight is approximately 8.5 kg. The shaft is 22 mm diameter with a keyway and a tapped M8 × 12 hole on the end for coupling attachment — use a flexible jaw coupling (Omron R88A-CSK series) or a zero-backlash servo coupling to avoid bearing damage from small misalignment.

Pairing with the drive and controller

Pair the R88M-K2K030H-S2-Z with an R88D-KN20H-ECT-Z (EtherCAT) or R88D-KT20H-Z (Mechatrolink-II / pulse-train) G5 servo drive from the same series. Through EtherCAT on an NJ501 or NX102 controller, the motor delivers position, velocity, and torque loops with a 1 kHz update rate, and the drive's built-in safety STO (Safe Torque Off) reaches PL d per ISO 13849-1. For commissioning, load the Z-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 a few seconds once the motor is bolted to its load.

Key Features

  • 2 kW rated output at 3000 rpm, 6.37 Nm rated torque
  • Peak torque 19.1 Nm for high-acceleration moves
  • 20-bit incremental encoder, 1,048,626 pulses per revolution
  • 200 V class three-phase supply
  • Straight shaft with keyway and M8 tapped hole for coupling
  • Z-series Simulink / Sysmac Studio motor profile for drag-and-drop commissioning
  • Pairs with R88D-KN20H-ECT-Z EtherCAT drive and NJ501 / NX102 controllers
  • 100 × 100 mm flange, 187 mm length, ~8.5 kg
  • SKU: R88M-K2K030H-S2-Z
  • Series: Accurax G5 (R88M-K)
  • Voltage: 230 VAC
  • I/O: 2 I/O

Best-Fit Applications

  • Main draw axis on a horizontal-form-fill-seal packaging machine pulling film through sealing jaws
  • Index drum drive on a rotary labelling machine positioning labels under the applicator
  • Winding / unwinding reel on a film converting line maintaining dancer position via torque control
  • Press slide on a small forming press requiring 300 % peak torque for the forming stroke

Buying Checklist

  • Pick R88M-K2K030H-S2-Z for a 2 kW 200 V axis with 20-bit incremental encoder and no brake
  • Pick R88M-K2K030H-BS2-Z if the axis is vertical and needs a holding brake for power-off safety
  • Pick R88M-K2K030T-S2-Z if you need absolute position retention through power cycles
  • Pick R88M-K2K030C-BS2 or R88M-K2K030F-BS2 if your drive bus is 400 V three-phase
  • Order the R88A-CSK22S flexible coupling or equivalent jaw-coupling matched to the 22 mm shaft
  • Order the matched R88A-CNK22S power cable and R88A-CFK22S encoder cable in the lengths your cabinet needs

Technical Specifications

Model R88M-K2K030H-S2-Z
Series Accurax G5 (R88M-K)
Type AC servo motor
Rated Output 2 kW
Rated Speed 3000 rpm
Rated Torque 6.37 Nm
Peak Torque 19.1 Nm
Rated Current 9.55 A rms
Instantaneous Max Current 28.6 A rms
Supply Voltage 200 / 230 VAC three-phase
Encoder Resolution 1,048,626 pulses/rev

FAQ for R88M-K2K030H-S2-Z

What drive pairs with the R88M-K2K030H-S2-Z?
Any G5-series drive rated for 2 kW at 200 V three-phase. The most common pairings are R88D-KN20H-ECT-Z (EtherCAT, for NJ501 / NX102 controllers) and R88D-KT20H-Z (Mechatrolink-II or pulse-train, for CJ2 or standalone applications). Do not mix 200 V motors with 400 V drives — the bus voltage, encoder cable, and parameter set are different.
Does the R88M-K2K030H-S2-Z come with a brake?
No. The S2 suffix in the part number means straight keyed shaft, no brake. If the axis is vertical and you need a holding brake for power-off safety, order the R88M-K2K030H-BS2-Z instead — same motor, but with a 24 VDC spring-engaged holding brake rated to hold the rated torque when de-energised.
What's the difference between H and T suffix on Accurax G5 motors?
H = 200 V class with 20-bit incremental encoder. T = 200 V class with 17-bit absolute encoder that retains position through power cycles via a battery in the encoder cable. Pick H if your controller can home the axis on every start (typical for most packaging and material-handling lines). Pick T if you want to skip homing at restart (typical for machines with limited travel that power down in safe positions).
What's the -Z suffix mean on the R88M-K2K030H-S2-Z?
The -Z suffix indicates the motor ships with a Sysmac Studio electronic data sheet matched to its electrical and mechanical parameters, so Sysmac Studio auto-detects the motor when connected via EtherCAT and pre-loads the torque limits, inertia ratio, encoder resolution, and thermal model. You can still use a non-Z motor on the same drive — you just enter the parameters manually in the drive's setup screen.

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