mycnc:mycnc_pulse_width_setup
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
mycnc:mycnc_pulse_width_setup [2019/04/24 13:47] – ivan | mycnc:mycnc_pulse_width_setup [2020/01/27 10:52] – ivan | ||
---|---|---|---|
Line 12: | Line 12: | ||
A common procedure required for proper motor operation is selecting the appropriate pulse width for the signal going from the controller to the step/servo motor on the CNC machine. A minimum pulse width is usually noted by the motor manufacturer so as to ensure that the motor can register the signals going to it from the controller (if the pulse width is lower, then the motor cannot " | A common procedure required for proper motor operation is selecting the appropriate pulse width for the signal going from the controller to the step/servo motor on the CNC machine. A minimum pulse width is usually noted by the motor manufacturer so as to ensure that the motor can register the signals going to it from the controller (if the pulse width is lower, then the motor cannot " | ||
- | As seen in the following instructions from Panasonic' | + | As seen in the following instructions from Panasonic' |
{{: | {{: | ||
Line 48: | Line 48: | ||
The value for the number of [steps / revolution] will be equal to 7812.5 steps/ | The value for the number of [steps / revolution] will be equal to 7812.5 steps/ | ||
</ | </ | ||
- | |||
*As discussed earlier, the value selected on the stepper motor must be equal or smaller than the number of **[steps / revolution]** obtained from the previous step for the motor to register the signal and function properly. | *As discussed earlier, the value selected on the stepper motor must be equal or smaller than the number of **[steps / revolution]** obtained from the previous step for the motor to register the signal and function properly. | ||
- | *//For example, if the **[steps / revolution]** value has been calculated to be 7812.5 steps/ | + | *//For example, if the **[steps / revolution]** value has been calculated to be 7812.5 steps/ |
*Using the **[revolutions / second]** value and the updated stepper driver **[steps / revolution]** value, calculate the actual **[seconds / step]** value of the motor. This actual **[seconds / step]** value will always be equal or higher than the minimum allowable **[seconds / step]** value of the motor due to selecting a lower **[steps / revolution]** value in the previous steps. | *Using the **[revolutions / second]** value and the updated stepper driver **[steps / revolution]** value, calculate the actual **[seconds / step]** value of the motor. This actual **[seconds / step]** value will always be equal or higher than the minimum allowable **[seconds / step]** value of the motor due to selecting a lower **[steps / revolution]** value in the previous steps. | ||
Line 60: | Line 59: | ||
</ | </ | ||
- | + | *The value for the **Pulse Width** in myCNC software must be set to be equal or to the next closest value that is higher than the actual **[seconds / step]** value of the motor. | |
- | *The value for the **Pulse Width** in myCNC software must be equal or higher than the actual **[seconds / step]** value of the motor. | + | |
*//For example, if the **[seconds / step]** value was equal to 9.76 μs/step, and an ET6 or an ET7 board was used, 12 μs would be selected from the chart in the **Common Hardware Settings** tab as it is the closest value that's higher than 9.76 μs// | *//For example, if the **[seconds / step]** value was equal to 9.76 μs/step, and an ET6 or an ET7 board was used, 12 μs would be selected from the chart in the **Common Hardware Settings** tab as it is the closest value that's higher than 9.76 μs// | ||
{{: | {{: | ||
*The 12 μs corresponds to Setting 7 in the chart, thus the **Pulse width** value should be set to 7 in myCNC software. | *The 12 μs corresponds to Setting 7 in the chart, thus the **Pulse width** value should be set to 7 in myCNC software. | ||
- | | + | |
{{: | {{: | ||
*The pulse width setup is now complete. | *The pulse width setup is now complete. |
mycnc/mycnc_pulse_width_setup.txt · Last modified: 2024/01/22 11:05 by ivan