Menu

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 — Drive

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. -Z = Simulink-compatible profile + battery-less absolute encoder support. STO PL d / SIL 2 safety, CiA 402 drive profile, 250 µs cycle time.

1-Year Warranty Full manufacturer warranty
Global Shipping Worldwide delivery available
Genuine Omron 100% authentic product
Ready to Ship Usually ships within 24h
In Stock

This item is available for immediate shipment from our warehouse.

Request Quote

Contact for pricing, bulk discounts, and shipping

Product Overview

The 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. The drive accepts single-phase or 3-phase 200-240 VAC (170-264 V operating range) at 50/60 Hz, with a rated input current of 4.3 A on single-phase or 2.4 A on 3-phase, and delivers 0.4 kW continuous output at 2.6 A rms to the motor.

Where the R88D-KN04H-ECT-Z sits in the R88D-KN family

The R88D-KN family is split along four axes: power rating (KN01 = 100 W, KN02 = 200 W, KN04 = 400 W, KN08 = 750 W, KN10 = 1 kW, KN15 = 1.5 kW, KN20 = 2 kW, KN30 = 3 kW), input voltage (L = 100 VAC single-phase, H = 200 VAC single/3-phase, no 400 VAC variant in KN family — that comes from R88D-KT), communication interface (ECT = EtherCAT, ML2 = MECHATROLINK-II), and variant (blank = incremental encoder support, Z = Simulink-compatible + absolute encoder support).

EtherCAT communication and CiA 402 drive profile

The R88D-KN04H-ECT-Z communicates with the host controller (typically an NJ501-1400, NJ101-1000, NX102-1000, or third-party EtherCAT master) via 100 Mbps EtherCAT using the CoE (CANopen over EtherCAT) protocol with the standard CiA 402 drive profile. The drive supports all standard CiA 402 modes of operation: profile position mode (PP), profile velocity mode (PV), profile torque mode (PT), cyclic synchronous position mode (CSP), cyclic synchronous velocity mode (CSV), and cyclic synchronous torque mode (CST). The minimum EtherCAT cycle time is 250 µs, which is fast enough for high-dynamic positioning applications (packaging machines, electronic assembly, semiconductor handling).

Motor pairing and Simulink profile benefits

The R88D-KN04H-ECT-Z pairs with the R88M-K40030H family of 400 W servo motors: R88M-K40030H (incremental encoder), R88M-K40030H-S2 (incremental + brake), R88M-K40030H-B (incremental with brake, different brake variant), R88M-K40030H-S2-Z (Simulink-compatible absolute encoder, this SKU's intended pairing), and R88M-K40030T (absolute encoder with multi-turn battery backup). The 400 W motor delivers 1.3 Nm rated torque at 3000 rpm with 350 % peak torque (4.5 Nm) for acceleration and overload. For the Simulink profile support to be active, the motor must be a -S2-Z variant (R88M-K40030H-S2-Z).

Key Features

  • Accurax G5-series AC servo drive with EtherCAT
  • 400 W rated output, continuous output current 2.6 A rms
  • 200 VAC single-phase or 3-phase input
  • Rated input current 4.3 A / 2.4 A
  • Power supply capacity 0.9 KVA
  • Z variant = Simulink-compatible profile + battery-less absolute multi-turn encoder
  • Compatible with R88M-K40030H/-S2/-B/-T/-S2-Z servo motors
  • EtherCAT cycle time 250 µs minimum
  • SKU: R88D-KN04H-ECT-Z
  • Series: R88D-KN Accurax G5 Servo Drives with EtherCAT
  • Voltage: 200 TO 240 VAC
  • I/O: 400 I/O

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.
  • Conveyor synchronization on a bottling line — multiple R88D-KN04H-ECT-Z drives daisy-chained on EtherCAT for synchronized conveyor motion
  • Robotic arm joint control on a small assembly robot — 4 × R88D-KN04H-ECT-Z drives for 4 axes at 400 W each
  • Feed-axis servo on a CNC lathe where the Simulink profile enables accurate mechanical simulation — R88M-K40030H-S2-Z paired with R88D-KN04H-ECT-Z

Buying Checklist

  • Pick R88D-KN04H-ECT-Z for 400 W Accurax G5 EtherCAT drive with Simulink profile + absolute encoder support
  • Pick R88D-KN04H-ECT for 400 W without Simulink profile / absolute encoder
  • Pick R88D-KN02H-ECT for 200 W if your motor is 200 W
  • Pick R88D-KN08H-ECT for 750 W if your motor is 750 W
  • Pick R88D-KN04L-ECT for 100 VAC single-phase input
  • Pick R88D-KN04H-ML2 for MECHATROLINK-II instead of EtherCAT

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) 17-bit absolute + 16-bit multi-turn (battery-less on -Z variant)
Dimensions (W × H × 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.

Similar Products

Explore related Omron models often viewed alongside this product.