A microstepping driver such as the TB6600 allows higher resolutions by allowing intermediate step locations. ![]() Stepper motors typically have a step size of 1.8° or 200 steps per revolution, this refers to full steps. Now connect the two coils to the pins shown in the wiring diagram above. If you can still spin the shaft freely, try another pair of wires. If you feel a lot of resistance, you have found a pair of wires from the same coil. Next, while holding the ends together, try to spin the shaft of the stepper motor again. Now pick a random pair of wires from the motor and touch the bare ends together.ģ. Try to spin the shaft of the stepper motor by hand and notice how hard it is to turn.Ģ. To find the two wires from one coil, do the following with the motor disconnected:ġ. The wires from one coil get connected to A- and A+ and the other to B- and B+, the polarity doesn’t matter. The only thing you need to identify is the two pairs of wires which are connected to the two coils of the motor. I use the following trick to determine how to connect 4 wire bipolar stepper motors: If you cannot find the datasheet of your stepper motor, it can be difficult to figure out which color wire goes where. How to determine the correct stepper motor wiring? Otherwise, if you supply any voltage to the ENA+ pin, the motor is disengaged and can be turned freely by hand. That ENA+ pin is active on low, which means that if you don't supply any voltage to it OR connect it to ground, the stepper motor driver enables the motor (movement or lock). Tips: The ENA- is connected to the ground, and ENA+ is connected to where you supply the signal for ENABLING or DISABLING the stepper motor. Note that when enable pin (ENA+) LOW or disconnected, the driver is enabled. The connections are also given in the table below: TB6600 Connections VCC: 9 – 42 VDC This means that we connect all the negative sides of the control signal connections to ground. In this tutorial, we will be connecting the driver in a common cathode configuration. TB6600 stepper motor driver with Arduino UNO and stepper motor wiring diagram The wiring diagram below shows you which connections you need to make. Wiring – Connecting TB6600 to stepper motor and ArduinoĬonnecting the TB6600 stepper motor driver to an Arduino and stepper motor is easy. They can be wired and controlled in the same way as the TB6600, so you can easily upgrade your system later. Digital drivers usually give much better performance and quieter operation. In recent years, digital drivers like the DM556 or DM542 have become much more affordable. Note that the TB6600 is an analog driver. Protection: Low-voltage shutdown, overheating and over-current protectionĪbove are the specifications for the TB6600HG IC, the driver itself has a maximum current rating of 3.5 A and 4.0 A peak. ![]() Max output current: 4.5 A per phase, 5.0 A peak1 Always look at the datasheet of your driver, before connecting power. Note that the exact specifications and dimensions can differ slightly between manufacturers. You can find more specifications in the table below. The driver has several safety functions built-in like over-current, under-voltage shutdown, and overheating protection. Make sure that you do not connect stepper motors with a current rating of more than 3.5 A to the driver. With a maximum current of 3.5 A continuous, the TB6600 driver can be used to control quite large stepper motors like a NEMA 23. The TB6600 microstepping driver is built around the Toshiba TB6600HG IC and it can be used to drive two-phase bipolar stepper motors. This library is easy to use and allows you to add acceleration and deceleration to the movement of the stepper motor. Next, we will look at the AccelStepper library. In the first example, I will show you how you can use this stepper motor driver without an Arduino library. I have included a wiring diagram and example codes. This driver is easy to use and can control large stepper motors like a 3A NEMA 23. In this tutorial, you will learn how to control a stepper motor with the TB6600 microstepping driver and Arduino microprocessor board.
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