What the E1028 alarm means

Feedback current from the power module exceeded the motor's continuous rating for the allowed time — the servo software overload curve tripped for the named axis. This is one of the faults our repair team handles on Kawasaki E / F / C series (AS language) systems — the cause is usually identifiable within the first on-site inspection.

Most common causes

  • Arm interference with fixture, workpiece, or snagged cable
  • Brake not releasing on the axis
  • Damaged reducer/gearing or bearing
  • Payload above the robot's rated capacity
  • Overhauling motion beyond motor rating
  • Low gas-spring pressure on models with balancers
Field note: the first item on this list is what we find most often on real machines. Check it before you go deeper.

Step-by-step field fix

  1. Jog the arm off the interference in teach mode
  2. Check that the axis brake releases with servo power on
  3. Inspect reducers and drive train for damage or binding
  4. Verify payload is within rating and gas-spring pressure is correct
  5. If current stays high with no mechanical cause, test the servo board, power module and motor
Safety first: never bypass safety circuits or force contactors closed. If the alarm involves E-stop chains, brakes or drive power, and you are not a trained robot technician, contact a professional — wrong moves here can cost you a robot or an injury.

Still stuck? Get an engineer on the phone — right now

Tell us the alarm code, the robot model and what was happening when the alarm came up. Our engineers run these diagnostics every day, and remote diagnosis by phone or video call is free.

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Hotline: +86-20-39029800 · WhatsApp: +86-188-1886-2860

Related Drive & Power Stage alarms

D1028 — Servo Board DC Power Abnormal (Servo FPGA) D1562 — Power Sequence Board — AC External Voltage Too High E1294 — Servo Board IO 24V Dropped
Other brands: we also keep field-fix libraries for Staubli · Epson · Nachi and more — see the complete alarm code hub.

Frequently asked questions

QWhat does the Kawasaki E1028 alarm mean?

Feedback current from the power module exceeded the motor's continuous rating for the allowed time — the servo software overload curve tripped for the named axis. In field practice it belongs to the drive & power stage family of faults.

QCan I clear a Kawasaki E1028 alarm myself?

Sometimes. Work through the step-by-step checks on this page — the first listed cause is what we find most often in the field. If the alarm returns after two attempts, or the fault involves power, brakes or safety circuits, stop and call a qualified robot service engineer.

QHow fast can a Henghuan engineer help?

On-site response in the Pearl River Delta within 30 minutes to 3 hours, across mainland China in 1-3 business days, and worldwide within 2-5 business days. Remote diagnosis by phone/WhatsApp/video is available immediately.

Written by the Henghuan Robotics repair team from field service experience. Alarm descriptions are our own summary for troubleshooting reference and may vary by controller and software version — when in doubt, check your Kawasaki documentation or contact us. Henghuan is an independent service provider, not affiliated with or endorsed by Kawasaki.