During the operation of the OTC DAIHEN Welding Robot, if the system experiences abnormalities such as unconfigured welding machine connection, unconfigured multiple input signals, missing user coordinate system, or abnormal Deadman safety switch state, the teach pendant will usually display a hardware and control-level alarm in the 2908 to 2999 range. If these faults are not investigated promptly, they may cause serious operational safety hazards.
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., 2908), to accurately obtain troubleshooting and processing suggestions.
I. OTC Robot Alarm Code Real-Time Quick Reference Table (2908-2999)
| Alarm Code | Fault Phenomenon | Fault Cause Analysis | Countermeasures & Solutions |
|---|---|---|---|
| 2908 | Specified Welding Machine Not Effectively Set | The specified welding machine is not effectively set on the spot welding constant. | Change the welding machine number, and then reset the exception. |
| 2923 | Specified Welding Machine Not Effectively Set | Since the connection signal is not input, it is judged that no mechanical connection is made. | Connect the welding gun mechanically; if connected, check whether the connection signal line is disconnected, and then reset the exception. |
| 2937 | Cannot Execute Speed-Type Endless Function | This error occurs when the speed-type endless function cannot be executed. | Set the mechanism number again. |
| 2945 | Condition Signal for Multiple Input Signals Not Set | This error occurs when the condition number for multiple input signals is not set. | Set the condition for multiple input signals, or set the I/O signal number for the function outside the multiple input signals, and then reset the exception. |
| 2946 | User Coordinate System Number Not Selected | When trying to execute a movement on the user coordinate system reference, the user coordinate number is not selected. | Use FN113 to select the user coordinate number before the movement system function, no special release is required. |
| 2961 | Set Common Memory Area Overlaps | The common memory area set by AX is already being used by other nodes. | After modifying the set value, execute the initialization of the field bus, no reset operation is required. |
| 2971 | Fixed Tool Not Selected | This exception is output when the fixed tool number is not selected even though it is a step of fixed tool interpolation. | Use FN67 to select the fixed tool number, no special release is required. |
| 2973 | Regeneration Impossible Because Deadman Switch Is Not In Release Position | This error occurs when a regeneration command is input while holding the Deadman switch. | Input the regeneration command after the Deadman switch is in the release position, and reset the exception after eliminating the cause of the exception. |
| 2974 | Pause Signal or Hold Signal Has Been Input | This error occurs when a start command is input while the pause signal and external pause signal or the hold signal and external hold signal have been input. | Release the pause signal or hold signal, and release with the reset key. |
| 2999 | Output Signal Attributes Overlap | Attempting to execute FN35 or set an output signal with already specified attributes. | Clear the attribute specification so that attributes do not overlap, no reset operation is required. |
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