What the E1027 alarm means

The hardware safety chain (E-stop loop, guard doors, external safety devices) is open; motor power is held off until the chain closes. 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

  • An E-stop in the cell is still pressed
  • Guard door switch open or misaligned
  • Safety loop wiring broken or a maintenance jumper left out
  • Faulty external safety relay
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. Release every E-stop and close all guards in the cell
  2. Trace the safety loop against the wiring diagram
  3. Check external safety relay state
  4. Reset the error and confirm motor power can be turned on
  5. Never bypass the safety chain to keep production running
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 Safety Chain & E-Stop alarms

P1001 — Program Cannot Be Executed in Teach Mode W1013 — Encoder Battery Voltage Low (Warning) E1028 — Motor Overload (Axis XX) E1029 — Encoder Revolution Count Abnormal (Axis XX) E1030 — Encoder Data Abnormal (Axis XX) E1033 — Encoder Line Error (Axis XX)
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 E1027 alarm mean?

The hardware safety chain (E-stop loop, guard doors, external safety devices) is open; motor power is held off until the chain closes. In field practice it belongs to the safety chain & e-stop family of faults.

QCan I clear a Kawasaki E1027 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.