First, users should verify the mold-open signal on the injection molding machine. If the machine has output the signal but the robot still reports an error, it is necessary to inspect the open-mold relay (1:03). The most common cause is that the signal from the machine is not reaching the relay due to a loose wire at pin A54 on the circuit board. Tightening the signal wires typically resolves this issue (1:23).

If the relay still does not light up after tightening the connection, the next step is to inspect the wiring from the board to the relay; if the wiring is intact, the relay itself is likely faulty and needs to be replaced (1:49). The third scenario occurs when the relay is lit but the robot still does not receive the signal. In this case, the technician instructs to check for continuity between wire number 4 and wire number 11. The issue may be caused by loose relay contacts or a broken wire, requiring either tightening the contacts or replacing the wire to ensure a secure connection (2:15).

Finally, after completing the inspection and repairs, the user should test the robot in automatic mode by pressing the green button twice (2:38). Once the robot operates normally, the error is successfully resolved. This guide serves as a practical resource for injection molding machine operators to quickly troubleshoot and fix common issues on the factory floor.

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This error typically stems from two main causes:

1. Misalignment of the picking position (0:23 – 1:17): When the robotic arm moves down to pick up a product but misses the set coordinates, the system will display an error on the screen and stop operation. The solution is to readjust the picking coordinates to match the product’s actual position.
2. Sensor issues (1:20 – 2:06): If the robotic arm has made contact with the product but the error persists, the user needs to check the signal light on the gripper sensor. If the light is off, you must adjust the sensor’s position so it can detect the product. In cases where the sensor still fails to work after adjustment, it is likely faulty and requires replacement.

Understanding these two causes allows operators to quickly resolve issues and minimize downtime. If the robot remains non-functional after these checks, users should contact the Haitian technical support department for further professional assistance.

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1. Emergency stop button not released: This is the most common issue. The operator simply needs to twist the emergency stop button in the direction of the arrow, then press the reset button on the control screen to get the robot back in operation (0:47–1:06).
2. Incorrect connection jack: If the robot displays an error, check and switch the connection jack from the Reset connector to the IMM connector. After switching, you must also perform a reset on the control screen (1:11–1:49).
3. Signal wires 1 and 2 not connected: This is the final potential cause. The user needs to check and properly connect signal wires number 1 and 2 inside the injection molding machine’s electrical cabinet. Once connected, press the reset button on the control screen to finalize the process (1:51–2:31).

This video helps users quickly troubleshoot basic issues, ensuring stable robot operation without the need for complex technical support.

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Error handling procedure:

1. Identifying the error: When the robot displays an error on the control panel, users need to access the “Alarm History” section to check the details. From there, you can accurately identify which axis is experiencing the problem through the displayed error code. In this example, the error occurred on the Y-axis.
2. Checking connections at the control panel: The next step is to open the robot control panel to check the transducer wires corresponding to each axis. You should observe the wires for any abnormalities such as overheating or looseness. For the Y-axis, carefully check the wires at the inverter location. If you see hot wires or signs of instability, disconnect them to check for dirt or damage to the connector.
3. Check the motor connections: In addition to the control panel, check the connections of the encoder wires directly at the Y-axis motor. Disconnect the jacks, clean the connectors thoroughly, and ensure there are no loose connections or broken wires.
4. Completion and operation: After cleaning and securely reconnecting the connectors, return to the control panel to clear the error and restart the robot. If the screen no longer displays a warning, the problem has been resolved.

Important note: If the robot still reports an error after cleaning and reconnecting it correctly, it is highly likely that the transponder cable is physically damaged or has an internal break. In this case, the best solution is to replace the transponder cable to ensure the robot operates stably and safely.

Hopefully, this guide will give you more confidence in maintaining and troubleshooting basic technical issues on your Hilectro robot.

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