FAQ

1. Probe head does not rotate; software shows “PH10 rotation timeout.”
2. Probe head unlocks during rotation but fails to lock properly, or locking produces abnormal noise.
3. Probe head rotation angle does not match the requested angle.
4. Probe head unlocks or makes abnormal noise when rotating to a certain fixed angle.

Cause Analysis:

1. Loose communication cable; incorrect communication port settings; improperly installed communication port drivers or damaged ports; incorrect baud rate settings or wrong DIP switch settings on the PH10 probe control box can cause the probe head not to rotate.

Troubleshooting:

1. Faulty probe cable such as cold solder joints or poor contact; faulty PH10 probe control box; faulty PH10 probe head can all cause this issue.
2. Same causes as item 1.
3. In most cases, the problem is caused by the probe head itself.

Recommended Solutions:

1. Power off and securely reconnect communication cables; ensure serial port card drivers are correctly installed; check serial port settings to avoid conflicts; setting baud rate to 9600 usually resolves the issue. For factory equipment, the DIP switches on the P10 probe control box are preset—if servicing or replacing, verify DIP switches 1 and 3 are set to UP.
2. Check the soldering quality of PH10 probe extension cables (PL6, PL12, PL93); use known good probe cables, control boxes, and probe heads to isolate the fault through substitution testing.
3. Same as solution 2.
4. Test with a known good probe head to confirm the cause of the fault.

Symptoms:

The power-on button on the hand controller does not light up; no relay clicking sound is heard from the controller; or the button lights briefly then goes off after power-on. The hand controller cannot be used to move the machine.

Cause Analysis:

1. The emergency stop (E-stop) switch is pressed, preventing servo voltage from being applied.
2. Incorrect air pressure settings cause the controller system to cut off servo voltage to protect equipment safety, preventing power-on.
3. Large fluctuations in air flow cause pressure differences insufficient for the controller system, leading to this fault.
4. The controller system is not powered on, so the hand controller cannot be powered.
5. Machine limit switches are triggered, preventing power-on.
6. Probe is not installed or incorrectly installed, preventing hand controller power-on.
7. Measurement software is not running, so the hand controller cannot be powered.
8. Optical scale reading system fault causes the power indicator to go off immediately after power-on, preventing normal power-up.
9. Emergency stop circuit wiring issues, faults in hand controller, controller, probe controller, or motor damage can prevent hand controller power-on.
10. Measurement software and control system communication is not properly established, preventing normal power-on.

Recommended Solutions:

1. Release all emergency stop switches, then power on using the hand controller.
2. Ensure system air supply pressure is correct: 0.55 MPa; for Daisy8106 and earlier models, working pressure is 0.43 ± 0.02 MPa; for Daisy8106 and newer ML, MGH series, working pressure is 0.45 ± 0.02 MPa.
3. Maintain stable air flow with pressure difference not exceeding 0.02 MPa. If fluctuations exceed limits, consider adding air tanks or flow stabilizers.
4. Ensure the electrical cabinet is powered on and the control system has started normally before powering on with the hand controller.
5. Check if any machine axes are at limit positions or if limit switch wiring is loose or disconnected.
6. Confirm the probe is properly installed before powering on and moving the machine.
7. Start the AC-DMIS measurement software before powering on with the hand controller.
8. If the hand controller indicator light goes off immediately after power-on and software shows “Encoder Error” or “EXE ERROR,” check the optical scale for oil, peeling, rust, or damage; verify if the readhead indicator light is red. Resolve optical scale issues to restore normal power-on.
9. For emergency stop circuit wiring faults, check wiring according to schematics step-by-step. After excluding causes 1-7, test the functionality of the hand controller, controller, and probe controller. Motor damage may cause immediate servo voltage cut-off on power-on.
10. Controller communication issues are covered under “Communication Failure” problems. Following these 10 steps should resolve most hand controller power-on faults.