Modifications

The MP6500 supports such active current limiting, and the trimmer potentiometer on the board can be used to set the current limit:

The MP6500 supports such active current limiting, and the trimmer potentiometer on the board can be used to set the current limit:

{{POLImage|MP6500-03.png|600px|Limitation de courant en fonction de la position du potentiomètre sur le contrôleur MP6500.}}

{{POLImage|MP6500-03.png|480px|Limitation de courant en fonction de la position du potentiomètre sur le contrôleur MP6500.}}

You will typically want to set the driver’s current limit to be at or below the current rating of your stepper motor. One way to set the current limit is to put the driver into full-step mode and to measure the current running through a single motor coil without clocking the STEP input. The measured current will be 0.7 times the current limit (since both coils are always on and limited to approximately 70% of the current limit setting in full-step mode).

You will typically want to set the driver’s current limit to be at or below the current rating of your stepper motor. One way to set the current limit is to put the driver into full-step mode and to measure the current running through a single motor coil without clocking the STEP input. The measured current will be 0.7 times the current limit (since both coils are always on and limited to approximately 70% of the current limit setting in full-step mode).