BuildYourCNC - Motor Driver (24-40 volts DC, up to 3.0 amps, microstepping from 1 to 1/64)

Main view of the 3.0 amp stepper motor driver

View of the current table and the digital terminals of the 3.0 amp stepper driver

View of the microstep table and the motor coil terminals of the 3.0 amp stepper motor driver

distance between the mounting holes on side bottom of the 3.0 amp stepper motor driver

Distance measurement from side bottom holes to other side bottom holes for the 3.0 amp stepper motor driver

Overall length of the 3.0 stepper motor driver

Height of the 3.0 amp stepper motor driver

Width of the 3.0 amp stepper motor driver

Distance from side hole to bottom of the 3.0 amp stepper motor driver

Distance from side to first bottom mount hole for the 3.0 amp stepper motor driver

Motor Driver (24-40 volts DC, up to 3.0 amps, microstepping from 1 to 1/64)

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Stepping Motor Driver (24-40 volts DC, up to 3.0 amps, microstepping from 1 to 1/64)

$54.95

Introduction:

You'll need this to make the Stepper Motor work. This incredible piece of electronics translates a pulse into a high powered complex coil firing combination. this particular driver allows a 3.0 amp draw from the motor and accepts 24 to 40 volts. - Datasheet

Description:

This 3 amp stepping motor driver provides control and power to stepper motors. Stepper motors will not function without these drivers. We also have 6 amp drivers and 2.5 amp drivers which we manufacture here at BuildYourCNC.

The driver has terminals for the digital operation side and the motor output side to provide power and function to the motor. The first two terminals on the motor output side provide power from a power source such as a power supply.

The range of voltage you can apply to these terminals is 24-40 volts. The A+, A-, B+, B- are connected to the motor coils. Generally, the stepper motor has two coils and A+ and A- will be on one coil, with B+ and B- on the other coil.

On the other bank of terminals you will find Rest-, Rest+, CW-, CW+, CP-, CP+. The rest terminals are the enable terminals. We usually don’t use these but they are available. CW+ and CW- are the direction terminals and CP+ and CP- are the pulse terminals.

The CW+ and CW- will receive either a high or low digital level voltage to control the direction that the motor will spin. The CP+ and CP- will receive a pulse train to spin the motor in that direction. For every pulse these receive, the motor will turn one step.

Between the two banks of terminals are the dipswitches. There are 8 switches and they correspond to the table found on the top of the driver. There are three settings for step and three settings for current.

The step settings set how many times the motor will step for each full step. If you set it for 1/1/1 which would be Up/Up/Up that would be the setting for full step. If the stepper motor has 200 steps per revolution, it would achieve a full revolution at 200 pulses received at this terminal.

If you set at 0/1/1 it will be a ½ step which means you will be sending 400 pulses to the terminal to achieve a full revolution.

Steps go from full to 1/64th. At 1/64th you would have to send 12,800 pulses to the terminals to achieve a full rotation.

The next table relating to the switches M5, M6, and M7 correspond to the amount of current that the driver will allow, drawn to the motor. The current range is between .9 to 3 amps. Dipswitches M4 and M8 are not used.

Ask a question about the Motor Driver (24-40 volts DC, up to 3.0 amps, microstepping from 1 to 1/64):

Previously answered questions:

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[Motor Driver (24-40 volts DC, up to 3.0 amps, microstepping from 1 to 1/64)] Hello, how to tell if a driver is bad?

There are a few ways to determine if a driver is not functioning properly. In all of the recommended actions below make sure to turn off all power and allow all energy to bleed before making any changes. This usually takes about 10 seconds, but you should allow at least 1 minute as different power supplies work differently.
- First, if the red LED is on, then the driver is in an error condition telling you that either the motor is connected incorrectly to the driver (one coil is connected across the A and B terminals of the driver), or the incorrect Amp setting is used. If you are certain the motor is connected correctly, i.e. one coil is connected to the A terminals and the other coil is connected to the B terminals, then try lowering the Amp setting and try again.
- If the axis is not working at all, there may be an issue with either the wiring from the controller to the driver, the controller could be bad, the driver could be bad, the motor could be bad, or the wiring between the motor and the driver is bad. If check if the driver is bad, you can move the signal wires coming from the controller that you know is working and wire them to the non-working driver. If the axis still doesn't work, then there is a problem with either the driver or the motor. At that point, disconnect the motor from that driver and connect a know working motor to that driver. If the motor turns, then you know the problem is the motor that was disconnected. If the motor does not turn, the problem is most likely the driver, but still could be the wiring from the controller to the driver, so you will want to confirm that connection.

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