上海维宏电子科技股份有限公司
SHANGHAI WEIHONG ELECTRONIC TECHNOLOGY CO., LTD.
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2. Ensure that Set Drive Parameters and Follow Parameter are set properly.
3. In Step mode, make the Z axis move in the positive or negative direction. Check to
see if the Z-axis coordinates change by the step.
Ensure that the coordinate changes by the step in the correct direction. If not,
repeat step 1 and 2.
4. Ensure that the software reports no alarm and there is a valid reading of the
Capacitance parameter (Set > Follow > System).
5. Ensure that the Z axis direction is correct. For details, see Check Axis Direction.
6. Ensure that the related software system parameters are set correctly to ensure
correct motion control and coordinate display, and that the Z axis can go to the
mechanical origin properly.
4.2.2 Measure the Capacitance
Check the capacitive sensor status when the cutter is stationary and moving.
Follow the steps below to check the capacitance:
1. Make the cutter nozzle touch the material and ensure that the current capacitance
is 0.
2. Set the follow parameter Z Up Pos..
3. Make the cutter move to a position more than 30 mm from the material surface and
keep it stable. Ensure that the capacitance is such situation is stable.
If the capacitance is not stable, there is serious electric interference. Refer to
Serious Electric Interference for troubleshooting.
4.2.3 Execute Servo Calibration
This step aims to solve the problem of zero drift of the servo motor brought by velocity loop
control.
Follow the steps below to execute servo calibration:
1. In the manual control area, click the axis direction buttons to move the cutter to the
middle of the travel path to prevent it from moving outside the travel range.
2. Click Servo Calibrate, the system generates the Servo Compensation
Parameter value.
The cutter moves back and forth within a small range for compensation.
4.2.4 Execute Calibration
This step aims to collect capacitance data and map capacitance values to heights.
Before executing automatic calibration, ensure that:
The follow parameter Nonmetal Calibration is set based on the material type.
The current measured capacitance is 0.
Follow the steps below to execute automatic calibration:
1. Move the cutter to about 5 mm from the material surface. Keep the material stable.
2. Click Calibrate. The system starts calibration, which takes about 20s.
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