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Part of the Omron Servo series — see the full model table, lifecycle status and replacement parts.

Omron R88D-KN04H-ECT-Z Accurax G5 servo drive — front view showing the 40 × 175 × 130 mm chassis with the EtherCAT IN and OUT RJ-45 ports, the 7-segment status display, the motor power connector (U/V/W/PE), and the Safe Torque Off (STO) connector at the bottom

Omron R88D-KN04H-ECT-Z — G5 Servo Drive, 400 W, EtherCAT

SKU: R88D-KN04H-ECT-Z

USD 295.00

Accurax G5-series EtherCAT servo drive, 400 W, 200 VAC single/3-phase input, 2.6 A rms continuous output

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Product Overview

The Omron R88D-KN04H-ECT-Z is a 400 W Accurax G5-series AC servo drive with built-in EtherCAT communications, designed for high-performance positioning, speed, and torque control of R88M-K40030H-series servo motors in packaging machines, machine tools, robots, and material-handling systems. It is 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.

Power supply capacity 0.9 KVA Rated input current 4.3 A / 2.4 A 200 VAC single-phase or 3-phase input Rated input current 4.3 A / 2.4 A

Compatible controllers and sibling SKUs are listed in the related products row below.

Key Features

  • 200 VAC single-phase or 3-phase input
  • Rated input current 4.3 A / 2.4 A
  • 400 W rated output, continuous output current 2.6 A rms
  • Power supply capacity 0.9 KVA
  • SKU: R88D-KN04H-ECT-Z
  • Series: R88D-KN Accurax G5 Servo Drives with EtherCAT
  • Voltage: 200 TO 240 VAC

Best-Fit Applications

  • Pick-and-place machine axis control on a packaging line — R88D-KN04H-ECT-Z driving R88M-K40030H-S2-Z for X-axis 400 W servo with EtherCAT control.
  • Robotic arm joint control on a small assembly robot — 4 × R88D-KN04H-ECT-Z drives for 4 axes at 400 W each
  • Conveyor synchronization on a bottling line — multiple R88D-KN04H-ECT-Z drives daisy-chained on EtherCAT for synchronized conveyor motion

Buying Checklist

  • Pick R88D-KN04L-ECT for 100 VAC single-phase input
  • Pick R88D-KN04H-ML2 for MECHATROLINK-II instead of EtherCAT
  • Pick R88D-KN04H-ECT for 400 W without Simulink profile / absolute encoder

Technical Specifications

Model R88D-KN04H-ECT-Z
Series R88D-KN Accurax G5 Servo Drives with EtherCAT
Type AC servo drive, EtherCAT, Simulink-compatible (-Z variant)
Rated Output Power 400 W (0.4 kW)
Continuous Output Current 2.6 A rms
Input Power Supply Voltage Single-phase or 3-phase 200 to 240 VAC (170 to 264 V), 50/60 Hz
Power Supply Capacity 0.9 KVA
Rated Input Current (1-phase) 4.3 A
Rated Input Current (3-phase) 2.4 A
Communication Interface EtherCAT (CoE - CANopen over EtherCAT)
Communication Protocol CiA 402 drive profile (PP / PV / PT / CSP / CSV / CST)
Encoder Resolution (Incremental) 20-bit (1,048,576 pulses/rev)
Encoder Resolution (Absolute) Incremental encoder (H suffix). G5 motors use the T suffix for absolute; absolute G5 motors need an R88A-BAT01W battery for multi-turn retention
Dimensions (W x H x D) Approx. 40 × 175 × 130 mm
Operating Temperature 0 to +55 °C (derate above 40 °C ambient)

FAQ for R88D-KN04H-ECT-Z

What's the difference between R88D-KN04H-ECT and R88D-KN04H-ECT-Z?
The -Z suffix adds two features to the standard EtherCAT drive: (1) support for Omron's Simulink motor profile — when paired with an R88M-K40030H-S2-Z Simulink-compatible motor, the drive provides pre-validated motor parameters to Simulink simulations (inertia, friction, torque constant) so simulations use the actual motor's dynamic characteristics without manual parameter entry; (2) battery-less absolute multi-turn encoder support — the drive can read the absolute position from a compatible absolute encoder (e.g., R88M-K40030T) without needing the external encoder backup battery typically.
Which motor pairs with the R88D-KN04H-ECT-Z?
The R88D-KN04H-ECT-Z pairs with the R88M-K40030 family of 400 W servo motors: R88M-K40030H (incremental encoder, no brake), R88M-K40030H-S2 (incremental encoder + 24 VDC holding brake), R88M-K40030H-B (incremental encoder, different brake variant), R88M-K40030H-BS2 (incremental encoder + brake with S2 spec), R88M-K40030T (absolute encoder), R88M-K40030T-S2 (absolute encoder + brake), R88M-K40030H-S2-Z (Simulink-compatible absolute + brake, this drive's intended pairing for Simulink profile), R88M-K40030T-S2-Z (Simulink-compatible absolute + brake).
Can I use the R88D-KN04H-ECT-Z with an NJ-series or NX-series Machine Controller?
Yes — the R88D-KN04H-ECT-Z is designed for seamless integration with Omron's NJ-series (NJ101-1000, NJ501-1400) and NX-series (NX102-1000, NX502-1300) Machine Controllers via EtherCAT. In Sysmac Studio, add the R88D-KN04H-ECT-Z to the EtherCAT configuration (the ESI file is included with Sysmac Studio); the drive's PDO mappings and CiA 402 parameters are auto-loaded. Use Omron's MC Function Blocks (MC_MoveAbsolute, MC_MoveVelocity, MC_TorqueControl, etc.) to command the drive — no manual PDO configuration is required for standard positioning, speed, and torque control.
Does the R88D-KN04H-ECT-Z support Safe Torque Off (STO)?
Yes — the R88D-KN04H-ECT-Z includes Safe Torque Off (STO) per EN 61800-5-2 with EN ISO 13849-1 Cat 3 PL d / EN 61508 SIL 2 / EN 62061 SIL 2 certification. STO removes power to the motor windings within 25 ms of receiving the safety stop signal, preventing unintended motor torque that could cause injury.

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