During the operation of the OTC DAIHEN Welding Robot, if the system experiences abnormalities such as PLC program check error, function command data exception, dual emergency stop circuit fault, or safety signal plug exception, the teach pendant will usually display a hardware and safety-level alarm in the 2373 to 2411 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., 2373), to accurately obtain troubleshooting suggestions.
I. OTC Robot Alarm Code Real-Time Quick Reference Table (2373-2411)
| Alarm Code | Fault Phenomenon | Fault Cause Analysis | Countermeasures & Solutions |
|---|---|---|---|
| 2373 | PLC Engine Start Program Check Error | An error was detected in the program check when starting via the PLC engine. | Perform a program check, and then reset the exception. |
| 2383 | Function Data Exception | During regeneration, an application command that is not allowed is set. | Restart after setting the correct program or step data to clear the error. |
| 2387 | 3 Points of Coordinate Conversion Are on the Same Straight Line | Coordinate conversion calculation is impossible because the teaching operation positions of the 3 points are on the same straight line. | Confirm the teaching operation positions and modify them so that they are not on the same straight line. |
| 2390 | User Function Definition Data Does Not Exist | The data defining the specified user function does not exist. | A user function definition file should be created. |
| 2391 | User Function Definition Data Does Not Exist | The data defining the specified user function does not exist. | A user function definition file should be created. |
| 2400 | Emergency Stop Signal Input Line Exception | Occurs when a fault occurs in the dual emergency stop signal input line (emergency stop switch fault). | Release the emergency stop switch; if the error persists, check whether the wiring of the emergency stop switch line is correct. |
| 2401 | Safety Signal Input Line Exception (Safety Plug) | Occurs when a fault occurs in the dual emergency stop signal input line (safety plug fault). | Release the safety plug, and then operate again. Check the safety plug line. |
| 2410 | Undefined User Exception | Error file not found. | Define the exception via the robot diagnostic menu, and then reset the exception. |
| 2371 | No Information Executed by Built-in PLC | When requesting the built-in PLC to start and there is no startable information source. | A download operation should be performed. |
| 2411 | Check Time Limit Reached | Check time exceeded limit. | Please execute the check completion program after detecting. |
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