During the operation of the OTC DAIHEN Welding Robot, if the system experiences problems such as exceeding the ZJ deviation range, adaptive line speed over limit, measurement area exception, or SF8 compensation monitoring value overflow, the teach pendant will usually display a hardware and control-level alarm in the 5411 to 5420 range. If these faults are not investigated promptly, they may cause serious operational safety hazards or damage to core components such as the reducer.
To help on-site engineers and mechanics quickly locate problems, we have organized the diagnostic terminology from the official maintenance manual to provide you with the following intuitive fault quick reference table. We recommend using the search function, entering the error code (e.g., 5411), to accurately obtain troubleshooting and processing suggestions.
I. OTC Robot Alarm Code Real-Time Quick Reference Table (5411-5420)
| Alarm Code | Fault Phenomenon | Fault Cause Analysis | Countermeasures & Solutions |
|---|---|---|---|
| 5411 | Exceeded ZJ Deviation Range | An exception occurs when the distance between the detection point and the ZJ reference point exceeds the Z.T deviation range. | Check the detection point, modify (increase) the ZJ deviation range parameter or change the program, and then reset the fault. |
| 5412 | Adaptive Line Speed Too Fast | The line speed specified by adaptive control exceeds the maximum line speed display value of adaptive control. | Check the data table via WinUser, increase the maximum line speed display value of adaptive control, and then reset. |
| 5413 | Adaptive Line Speed Insufficient | The line speed specified by adaptive control is lower than the minimum line speed display value of adaptive control. | Check the data table via WinUser, decrease the minimum line speed display value of adaptive control, and then reset. |
| 5414 | Area Too Large | The detected area exceeds the maximum allowable value. | Check the area display value (maximum), increase the maximum allowable value if necessary, and then reset the fault. |
| 5415 | Area Insufficient | The detected area is lower than the minimum allowable value. | Check the area display value (minimum), decrease the minimum allowable value if necessary, and then reset the fault. |
| 5416 | Mismatch Excessive | The detected mismatch exceeds the maximum allowable value. | Check the mismatch display value (maximum), increase the maximum allowable value if necessary, and then reset the fault. |
| 5417 | Mismatch Insufficient | The detected mismatch is lower than the minimum allowable value. | Check the mismatch display value (minimum), decrease the minimum allowable value if necessary, and then reset the fault. |
| 5418 | Search Position Changed | The search position and the reference position are different. | Please execute a trial movement or edit, obtain the reference position again, and then reset the fault. |
| 5419 | SF8 Maximum Compensation Monitoring Value Overflow | The content of the register specified in SF8 exceeds the maximum compensation monitoring value. | Check the content of the register specified in SF8, increase the maximum compensation monitoring value in SF8, and then reset. |
| 5420 | Less Than SF8 Minimum Compensation Monitoring Value | The content of the register specified in SF8 is less than the minimum compensation monitoring value. | Check the content of the register specified in SF8, decrease the minimum compensation monitoring value in SF8, and then reset. |
II. Get Professional Technical Support and Maintenance Services
When the robot frequently displays the above hardware-level alarms, and routine reset attempts are ineffective, do not forcefully pull the robot arm or repeatedly force restarts, so as not to cause secondary irreversible damage.
Contact Anhui Oujie for Technical Guidance
- System Recovery & Hardware Repair: Manager Fang
- Service Hotline (WhatsApp): 180-9663-1656
- Official Email: ahojotc@gmail.com
If you do not know how to handle such underlying alarms on-site, please take a picture of the error screen on the teach pendant and the on-site status, and send it to us via WhatsApp. As an OTC Designated Authorized Distributor, our professional maintenance engineers will provide you with a free technical assessment and troubleshooting solution!


