What the M# (-1007) alarm means

The maximum allowed torque for the indicated joint motor was applied for longer than the timeout period — the servo treats the joint as stalled and removes power. This is one of the faults our repair team handles on Omron SmartController (ACE / Viper / Cobra) systems — the cause is usually identifiable within the first on-site inspection.

Most common causes

  • Joint physically obstructed (collision, snagged cable, fixture in the path)
  • Brake on the joint not releasing
  • Payload far above the configured value
  • Seized bearing or reducer
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. Check for obstacles and confirm free movement of all joints by hand (with power off and brakes released safely)
  2. Verify the brake releases when high power is enabled
  3. Check payload configuration against the real tool
  4. Turn high power back on and repeat the failed motion at low speed
  5. If stalling returns with a free joint, test the motor and servo amplifier
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 Motion & Path alarms

V# (-1027) — Hard Envelope Error (Joint N)
Other brands: we also keep field-fix libraries for ESTUN · INOVANCE · EFORT and more — see the complete alarm code hub.

Frequently asked questions

QWhat does the Omron M# (-1007) alarm mean?

The maximum allowed torque for the indicated joint motor was applied for longer than the timeout period — the servo treats the joint as stalled and removes power. In field practice it belongs to the motion & path family of faults.

QCan I clear a Omron M# (-1007) 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 Omron documentation or contact us. Henghuan is an independent service provider, not affiliated with or endorsed by Omron.