During the operation of the OTC DAIHEN Welding Robot, if the system experiences abnormalities such as memory, CPU, or I/O faults of the SHARPI/F module, grinder exception, or X-bending movement amount over limit, the teach pendant will usually display a hardware and control-level alarm in the 2621 to 2669 range. If these faults are not investigated promptly, they may cause serious operational safety hazards or lead to a control system crash.
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., 2621), to accurately obtain troubleshooting and processing suggestions.
I. OTC Robot Alarm Code Real-Time Quick Reference Table (2621-2669)
| Alarm Code | Fault Phenomenon | Fault Cause Analysis | Countermeasures & Solutions |
|---|---|---|---|
| 2621 | SHARPI/F Detected Memory Error | During the self-test of the JW32CV module, an exception was detected in the memory unit (RAM/ROM). | 1. Refer to the “JW32CV Module Manual” to locate the fault; 2. Troubleshoot or replace the faulty memory component; 3. Exception reset. |
| 2622 | SHARPI/F Detected CPU Error | During the self-test of the JW32CV module, abnormal operation of the core CPU unit was detected. | 1. Refer to the manual to locate the cause; 2. Troubleshoot CPU power supply, heat dissipation, or hardware faults; 3. Exception reset. |
| 2623 | SHARPI/F Detected I/O Error | During the self-test of the JW32CV module, a communication/hardware exception of the general I/O interface unit was detected. | 1. Refer to the manual to locate the fault point; 2. Check the I/O wiring, power supply, and hardware status; 3. Exception reset. |
| 2624 | SHARPI/F Detected Special I/O Error | During the self-test of the JW32CV module, a special function I/O interface (such as high speed/analog) exception was detected. | 1. Refer to the manual to locate the special I/O fault type; 2. Check the interface configuration and hardware status; 3. Exception reset. |
| 2625 | SHARPI/F Detected Option Error | During the self-test of the JW32CV module, abnormal or incompatible configuration of optional functions/expansion modules was detected. | 1. Verify the option module configuration; 2. Reconfigure or replace incompatible option modules; 3. Exception reset. |
| 2626 | SHARPI/F Detected Power Error | During the self-test of the JW32CV module, abnormal voltage/current of the main power unit was detected. | 1. Refer to the manual to check the main power output parameters; 2. Repair the power fault (replace the module or repair the circuit); 3. Exception reset. |
| 2627 | SHARPI/F Detected Extension Power Error | During the self-test of the JW32CV module, abnormal voltage/current of the expansion/extension power unit was detected. | 1. Refer to the manual to check the extension power output parameters; 2. Repair the extension power fault; 3. Exception reset. |
| 2628 | SHARPI/F Sequence Program Stopped Running | The built-in sequence control program of the JW32CV module stopped abnormally. | 1. Manually start the stopped sequence program; 2. Check the program configuration or reload it; 3. Exception reset. |
| 2657 | Grinder Exception | When executing the grinding function, the system did not receive the normal work input signal from the grinder. | 1. Check the power supply and working status of the grinder; 2. Check the signal line connection; 3. Check the sensor limit. The alarm is automatically eliminated. |
| 2669 | X Bending Movement Amount Greater Than Error Limit | In the glass processing operation, the calculated value of the X-axis bending movement amount exceeds the error limit set by the system. | 1. Verify the parameter configuration of the “XY Bending Table”; 2. Modify the X bending movement amount value to make it lower than the limit; 3. 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


