What the 0x22 alarm means

The inverse solution for the commanded move requires a joint angle beyond its limit; the motion is rejected. We have built up many handled cases of this Dobot Magician / MG400 / M1 / CR (DobotStudio) alarm, and usually the first on-site inspection tells us what is wrong.

Most common causes

  • Path requires a joint past its travel limit
  • Large reorientation commanded as a single Cartesian move
  • Joint limits tightened in settings
  • Wrong taught posture for the task
Field note: Confirm or rule out the first cause first — it is the situation we encounter most.

Step-by-step field fix

  1. Check which joint hits its limit for the failing move
  2. Re-teach the path with a different arm posture
  3. Split big reorientations into smaller moves
  4. Review joint limit settings only if justified
  5. Run the clear-alarm script and dry-run the path
Safety first: For Dobot 0x22, this alarm family points at arm motion control: after a reset the arm can move unexpectedly, and anyone inside the working envelope is at strike and pinch risk. On site you may look at after confirming power-off the first step yourself: Check which joint hits its limit for the failing move. Beyond that it is the arm working envelope work - leave it to a professional.

How we diagnose motion alarms on site

Dobot 0x22 belongs to the motion & path family. On Dobot 0x22 the failing stage is joint-integrated drive modules (collaborative models dominate) on the Dobot controllers (CR / MG / Nova series companions) - the gap between command and execution: trajectory planning, joint limits, singularities, following error and mechanical resistance. We start reading Dobot 0x22 at DobotStudio / app alarm messages; error codes are hexadecimal with a 0x prefix.

The chain involved in Dobot 0x22 runs: program command -> trajectory planner -> joint targets -> servo execution -> actual position feedback -> deviation compare.

The clearest field clue for Dobot 0x22 is Path requires a joint past its travel limit; the discriminator is this test: The most valuable judgement on motion alarms is separating software from mechanics. We take the fixture off and re-run the same path below 10% speed: if it is clean unloaded and slow, the problem is mechanical - over-heavy tooling, shifted centre of gravity, or a joint that already has drag; if it alarms even unloaded and slow, look at program points, frame calibration and whether the path crosses a singular region. No instruments needed, and it removes half the wrong turns.

Field notes on this page cover Dobot 0x22 (Inverse Kinematics Over Joint Limit); written by the Henghuan repair team, updated 2026-10-01.

Can't find the cause? One call can pinpoint it

Tell us the alarm code, the model and what the machine was doing when the alarm appeared. Dobot 0x22 is an everyday diagnosis for our engineers, and remote diagnosis (phone or video) costs nothing.

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Related Motion & Path alarms

0x20 — Inverse Kinematics Singularity 0x21 — Inverse Kinematics No Solution — Out of Workspace 0x30 — Joint 1 Overspeed 0x31 — Joint 2 Overspeed 0x32 — Joint 3 Overspeed 0x33 — Joint 4 Overspeed
Same family: this code belongs to the Motion & path alarms family - the page collects all Motion & path-family codes we have handled, with the common inspection order and spares.
Other brands: we also keep field-fix libraries for FANUC · KUKA · ABB and more — see the complete alarm code hub.

Frequently asked questions

QWhat does the Dobot 0x22 alarm mean?

The inverse solution for the commanded move requires a joint angle beyond its limit; the motion is rejected. We have built up many handled cases of this Dobot Magician / MG400 / M1 / CR (DobotStudio) alarm, and usually the first on-site inspection tells us what is wrong. Dobot 0x22 sits in the motion & path family; on our work orders the highest-frequency trigger for this code is "Path requires a joint past its travel limit".

QCan I clear a Dobot 0x22 alarm myself?

Whether Dobot 0x22 clears on its own depends on the outcome of "Check which joint hits its limit for the failing move". Finish the flow with "Run the clear-alarm script and dry-run the path" to confirm Dobot 0x22 - do not skip it. If that step is clean, the second most frequent cause on Dobot 0x22 is "Large reorientation commanded as a single Cartesian move". If Dobot 0x22 returns after two clears, or the checks point at Path requires a joint past its travel limit, stop the cell and call a professional robot repair engineer.

QFor motion alarms like Dobot 0x22, can you triage remotely first?

The commonest causes we see on Dobot 0x22 are "Path requires a joint past its travel limit, Large reorientation commanded as a single Cartesian move, Joint limits tightened in settings", so we stock the van against those. For Dobot 0x22 specifically, we carry mechanical and configuration items: grease, limit switches, drag-chain segments, encoder cables and the parameter sheets for common reducers. For Dobot 0x22, motion alarms can often be narrowed remotely first, so an on-site visit is not always immediate. Before we roll, tell us what Dobot 0x22 shows on DobotStudio / app alarm messages; error codes are hexadecimal with a 0x prefix and what the machine was doing - phone or video triage is free.

This page on Dobot 0x22 was compiled from actual repair records of the Henghuan Robotics repair team. Alarm notes are our own summary for troubleshooting reference only and may vary with controller and software version — please consult Dobot documentation or contact us if in doubt. Henghuan is an independent service provider, not affiliated with or endorsed by Dobot.