To make sure that we are delivering the proper signals strength and resolution to the motors, the dip switches are set. The motor is connected in parallel to the terminals labeled A+, A-, B+, B- on the driver. This will allow the motor to have the most torque at a high speed. For the power supply that I am using, wiring the motor in parallel is the best option.
The torque and the power requirements that enable this torque. On the datasheet, there are a few numbers that are important to understand. The datasheet for the motor illustrates three different ways that the motor can be connected to the driver: unipolar, bipolar serial and bipolar parallel. The stepping motor must be connected in a special way. This power is distributed to the individual coils of the motor in special sequences that relate to moving in a particular direction and at a single step. To get power to the motors, the 36 volt power from the main power supply is connected to the driver. Go to the new parallel breakout board to get more information and the wiring diagram. The new parallel breakout board appears a bit different, but the process of wiring and testing is the same. The wiring of the parallel breakout board from the output terminals to the driver digital pulse (step pulse) and direction lines are explained. I thoroughly explain the wiring of the power supply, an optional 5v power supply to provide a 5v digital supply to the parallel breakout board. The steps per inch for many forms of mechanical option are also explained in depth. I have put together another set of wiring instructions that demonstrate a methodology that begins with a simple and straightforward wiring of only one driver and motor and follows with the remaining drivers while testing throughout. Overwhelmingly, I have noticed the electronics pose the most difficulty with new users. Most of the tutorials on this site are created in response to the difficulties I see users having with machines mechanics, structural dimensions and the electronics that drive their CNC machines. This tutorial will make you an expert in wiring CNC electronics using a parallel breakout board and standard stepping motors and stepping motor drivers.
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