During the operation of the OTC DAIHEN Welding Robot, if the system experiences abnormalities such as invalid wrist posture setting, program reservation limit exceeded, missing reference point for circular interpolation, or critical file password protection, the teach pendant will usually display a control-level alarm in the 2259 to 2357 range.
To help on-site engineers quickly locate problems, we have organized the diagnostic terminology from the maintenance manual to provide you with the following fault quick reference table. We recommend using the search function, entering the error code (e.g., 2259), to accurately obtain troubleshooting suggestions.
I. OTC Robot Alarm Code Real-Time Quick Reference Table (2259-2357)
| Alarm Code | Fault Phenomenon | Fault Cause Analysis | Countermeasures & Solutions |
|---|---|---|---|
| 2259 | Tool With Limit Angle Not Specified | When the wrist posture limit was set to valid, a tool step with the limit angle set to 0 was played back. | When playing back a tool step that does not use the wrist posture limit, set the limit to invalid and then reset. |
| 2268 | Program Can No Longer Reserve Regeneration | Detected when the number of program reservations exceeds 10. | Effective measures such as sequence should be implemented to prevent excessive backlog of program reservations, and then reset the exception. |
| 2272 | Conveyor Belt Run Signal is ON | The conveyor belt run signal was input in conveyor belt simulation or test mode. | The conveyor belt run input signal should be set to OFF, and then reset the exception. |
| 2277 | Cannot Use Analog and Digital Input Rewrite Simultaneously | This error occurs when regenerating analog input rewrite (FN169) and digital input rewrite (FN277) at the same time. | Check the program, delete one of the functions, and then reset the exception. |
| 2300 | Interrupt Signal Not Input | The interrupt signal specified during the execution of FN227 was not input. | Confirm the status of the sensor. If normal, confirm the connection with the control device and the signal number, then reset. |
| 2301 | No Reference Point for Arc Midpoint (C1) | Started a program without movement commands recorded before and after the arc midpoint (C1). | Record movement commands before and after the arc midpoint (C1) before starting. |
| 2302 | No Reference Point for Arc End Point (C2) | Started a program without movement commands recorded before the arc end point (C2). | Record movement commands before the arc end point (C2) before starting. |
| 2353 | Protected by Password | Trying to modify or delete a file protected by a password. | Protection is applied to prevent accidental modification of content. File protection should be released. |
| 2356 | Incorrect Regeneration Method for Search Reference Position Writing | When searching for reference position writing action, it was regenerated in a mode other than 1-cycle mode. | It should be regenerated in 1-cycle mode, no special release is required. |
| 2357 | Search Range Exceeded | This error occurs when the search range is exceeded. | The search range or teaching operation should be modified, no special release is required. |
II. Get Professional Technical Support and Maintenance Services
If the robot displays a hardware-level alarm and routine reset attempts are ineffective, do not forcefully operate the arm or repeatedly force restarts, so as not to cause secondary damage.
Contact Anhui Oujie for Technical Guidance
- System Repair Consultation: Manager Fang
- Service Hotline (WhatsApp): 180-9663-1656
- Official Email: ahojotc@gmail.com