During the operation of the OTC DAIHEN Welding Robot, if the system experiences a corresponding fault condition, the teach pendant will usually display a hardware and control-level alarm in the 1058 to 1822 range. If these faults are not investigated promptly, they may cause serious operational safety hazards or damage to core components such as the reducer.
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, to accurately obtain troubleshooting and processing suggestions.
I. OTC Robot Alarm Code Real-Time Quick Reference Table (1058-1822)
| Alarm Code | Fault Phenomenon | Fault Cause Analysis | Countermeasures & Solutions |
|---|---|---|---|
| 1058 | Timer Control Device CPU Not Ready. | No confirmation signal was received from the timer control device CPU. | Replace the timer PCB (PMU), and then reset the exception. |
| 1140 | Cannot Change Conveyor Belt Mode During Regeneration. | Tried to change the conveyor belt mode while the robot was moving. | Change the conveyor belt mode after stopping, and then reset the exception. |
| 1151 | Welding Board Failed During Initialization. | An exception occurs when the initialization of the RE-01 welding board is incomplete. | Turn on the power again. If the exception persists, replace the welding board (RE-01), and then reset the exception. |
| 1156 | Welding Board Detected Memory Exception. | An exception occurs when the memory of the welding board is damaged. | Turn on the power again. If the exception persists, replace the welding board. After eliminating the fault, turn on the controller power again. |
| 1158 | Timer Controller CPU Not Ready. | The timer control CPU does not recognize. | Replace the timer PCB (RE-01), and then reset the exception. |
| 1181 | Conveyor Belt Run Signal Not Received. | The conveyor belt run signal was not received in the general conveyor belt mode. | In the general conveyor belt mode, set the conveyor belt run signal to ON, and then reset the exception. |
| 1792 | Unable to Enable “Sleep”. | When setting up the “Sleep” file, “Sleep” cannot be enabled because an external memory (flash card) is in the slot. | After removing the external memory, enable “Sleep” again, and then reset the fault. |
| 1820 | Welding Torch Nozzle Clogged. | The flow pressure exceeds the set value. | Clean the welding torch nozzle, and then reset the exception. |
| 1821 | Pressure Exceeds Upper Limit. | The flow pressure exceeds the set value. | Clean the welding torch nozzle, and then reset the exception. |
| 1822 | Pressure Exceeds Lower Limit. | The flow pressure exceeds the set value. | Clean the welding torch nozzle, and then reset the exception. |
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


