Hi there,
After a lot of work on my cnc machine (mill) i am finally getting to finishing the mechanical part. To continue, i need a power supply for my stepper motors, which i have some questions about. I am using the following stepper motor:
Type: 42BYGHW811
Datasheet: [www.phidgets.com]
I am using the following driver:
Type: DRV8825
Datasheet: [www.pololu.com]
Before posting this, i tried a 12V server power supply just to test of it would work, and i immediately noticed it was not turning the maximum speed possible, and when i tried to increase the speed it skipped a lot of steps untill it stopped and only vibrated. After some research i came to the conclusion my power supply wasn't powerfull enough.
Link to forum page: [www.cnczone.com]
On the forum i read that the stepper motor needs about 10-20 times the rated voltage to get to its maximum speed, which would be about 30-60 volts. I have no idea if this is true for my stepper motor, and i (of course) don't want to damage it. I was thinking about getting a 48V power supply, but the datasheet of the driver states the maximum input voltage is 47V.
I was also a little bit confused by the stepper motor datasheet, as the rated current is 2,5A, but this doesn't tell if this is the current per phase or in total.
Some extra information: I need to drive 3 stepper motors from this power supply
I was wondering if anyone could help me find a proper power supply, or at least the needed voltage and current the power supply should be able to handle.
Thanks in advance for any answers,
Harm Prins
After a lot of work on my cnc machine (mill) i am finally getting to finishing the mechanical part. To continue, i need a power supply for my stepper motors, which i have some questions about. I am using the following stepper motor:
Type: 42BYGHW811
Datasheet: [www.phidgets.com]
I am using the following driver:
Type: DRV8825
Datasheet: [www.pololu.com]
Before posting this, i tried a 12V server power supply just to test of it would work, and i immediately noticed it was not turning the maximum speed possible, and when i tried to increase the speed it skipped a lot of steps untill it stopped and only vibrated. After some research i came to the conclusion my power supply wasn't powerfull enough.
Link to forum page: [www.cnczone.com]
On the forum i read that the stepper motor needs about 10-20 times the rated voltage to get to its maximum speed, which would be about 30-60 volts. I have no idea if this is true for my stepper motor, and i (of course) don't want to damage it. I was thinking about getting a 48V power supply, but the datasheet of the driver states the maximum input voltage is 47V.
I was also a little bit confused by the stepper motor datasheet, as the rated current is 2,5A, but this doesn't tell if this is the current per phase or in total.
Some extra information: I need to drive 3 stepper motors from this power supply
I was wondering if anyone could help me find a proper power supply, or at least the needed voltage and current the power supply should be able to handle.
Thanks in advance for any answers,
Harm Prins