Please refer the following table to see coil energizing sequence.įig. This mode is a combination of above two modes. 2: Table listing stepper motor coil status for Double Coil Excitation Mode HALF STEP EXCITATION MODE Stepper motors are mostly driven in this mode to drive the load.įig. In this mode, motor consumes double the power than single coil excitation mode and provides very high torque. Then after coils are two coils are energized in sequence (please refer the table). In this mode, two motor coils are energized to gather. 1: Table listing stepper motor coil status for Single Coil Excitation Mode DOUBLE COIL EXCITATION MODE Usually, stepper motors are not driven in this mode.įig. This mode is also known as wave drive and it is not used to drive any load because of very less torque. In this mode, motor consumes very less power but also provides very less torque. All four coils are energized one by one in sequence (please refer the table). In this mode, at a time only one coil of the motor is energized. Half step excitation mode SINGLE COIL EXCITATION MODE Any 4 phase unipolar stepper motor can be driven in 3 different modes -:ģ.
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