During the operation of the OTC DAIHEN Welding Robot, if the system experiences problems such as communication timeout, pilot arc extinguish, cleaning exception, or starting point detection failure, the teach pendant will usually display a hardware and control-level alarm in the 6085 to 6239 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., 6085), to accurately obtain troubleshooting and processing suggestions.
I. OTC Robot Alarm Code Real-Time Quick Reference Table (6085-6239)
| Alarm Code | Fault Phenomenon | Fault Cause Analysis | Countermeasures & Solutions |
|---|---|---|---|
| 6085 | Communication Timeout Occurred in Welding Power Source | The control device of the welding power source does not respond. | Check the wiring and ground connection of the cable, no reset operation is required. |
| 6106 | Pilot Arc Extinguish Exception | Pilot arc extinguished. | Check the cable connection status, no reset operation is required. |
| 6107 | Failure Limit Type Setting Exception | The version of this model of welding machine cannot set failure limits. | Please set the relative value in the welding constant, no reset operation is required. |
| 6108 | Pilot Arc ON Exception | Cannot turn on the pilot arc. | Follow the standard procedure to turn off cleaning, reset the plasma unit, etc., no reset operation is required. |
| 6109 | Cleaning ON Exception | Cannot turn on cleaning. | Follow the standard procedure to turn off the pilot arc, reset the plasma unit, etc., no reset operation is required. |
| 6116 | Cannot Use Wire Consumption Management in User Maintenance Functions | The welding power source does not support wire consumption management. | Upgrade the welding power source software, no reset operation is required. |
| 6117 | Cannot Use “Gas OFF Delay” Function | The welding power source does not support the “Gas OFF Delay” function. | Upgrade the welding power source software or set the “Gas OFF Delay” time to 0. |
| 6237 | Starting Point Not Detected | This exception occurs when the starting point is not detected during ZF search. | Ensure WinUser can recognize the groove; increase the ZF maximum search range, and then reset. |
| 6238 | Cannot Restart During Sealing Tracking | Cannot restart during sealing tracking. | The position and posture of the robot should not be modified, and then perform an exception reset. |
| 6239 | Exceeded ZF Deviation Range | The distance between the detected starting point and the ZF taught point exceeds the deviation range. | Check the detected position, modify (increase) the ZF deviation range or program, 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!


