During the operation of the OTC DAIHEN Welding Robot, if the system experiences abnormalities such as operation preparation disconnection sequence conflict, spot welding function execution failure, operation mode switch error, or servo welding gun pressure overlimit, the teach pendant will usually display a control and operation-level alarm in the 2002 to 2044 range. If these faults are not investigated promptly, they may cause serious operational safety hazards or lead to welding interruption.
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., 2002), to accurately obtain troubleshooting and processing suggestions.
I. OTC Robot Alarm Code Real-Time Quick Reference Table (2002-2044)
| Alarm Code | Fault Phenomenon | Fault Cause Analysis | Countermeasures & Solutions |
|---|---|---|---|
| 2002 | Cannot Start Because Operation Preparation Disconnection Sequence is Executing | This error is output when start is input while the operation preparation disconnection sequence is being executed. | Turn on the operation preparation first, and then input the start command. After eliminating the cause of the exception, reset the exception. |
| 2003 | Spot Welding Related Functions Cannot Be Executed | There is an error in the recording method of spot welding related functions. | 1. Confirm the spot welding number; 2. Record the welding function after the first step; 3. After recording the movement command, check the action with a forward check. |
| 2006 | T/P Selector SW is in Auto | The T/P selector SW is in Auto and manual operation is about to be executed. | Set the T/P selector SW to Manual. After eliminating the cause of the exception, reset the exception. |
| 2010 | Tried to Start While Editing Job Program on Screen | This error occurs when trying to start while editing a job program on the screen. | Close the editor on the screen and then start. |
| 2021 | Cannot Cancel WI Operation. (Servo Welding Gun) | This error occurs if WI is canceled when the power to the servo welding gun motor is disconnected. | Turn on the motor power, and then cancel WI. No reset operation is required. |
| 2022 | Invalid Variable Value for Speed Parameter | This error occurs when the speed parameter of the robot language movement command is given by a variable and its value is invalid. | Set the variable value or change the speed parameter to a numerical value. |
| 2027 | Search 3 Wear Change Amount Exception | The difference between the wear amount detected by Search 3 and the wear amount detected by Search 1 has exceeded the Search 3 exception wear change amount. | Confirm whether the electrode has fallen off. If there is no problem, the wear amount should be detected from Search 1. Exception reset. |
| 2030 | Specified Command Position Exceeds Robot Operating Range | This exception occurs when the operating radius exceeds the limit. | Move to the allowable torque position in the constant setting mode, or correct the teaching, and confirm the installation posture and tool load. Exception reset. |
| 2038 | Function Not Allowed in Servo Welding Tongs Separated State | A function that is not allowed was executed while the servo welding tongs were separated. | Release the separated state before operating. Exception reset. |
| 2044 | Welding Gun Axis Encoder Data Unstable | The servo welding gun did not stop while waiting for the pressure to match. | Modify the teaching position. If there is no problem, the drive unit should be exchanged. Exception 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