Re: Powering 3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire (not CNC)
I have the 3A with reverse switch but I order one of these below at 10A to test. I would like to link some sort of LCD RPM display onto it .. guess thats for later.
http://www.ebay.co.uk/itm/12V-40V-10...4AAOSwuAVWxZvG
Features:
Control the speed of a DC motor with this controller.
High efficiency, high torque, low heat generating.
With reverse polarity protection, high current protection.
Working Voltage: DC 12V - DC 40V.
Control Power:0.01 - 400W.
Static Current:0.02 A ( Standby ).
PWM Duty Cycle:10% -100%.
PWM Frequency:13 KHz.
Material: Plastic, metal.
Size:6cm x 7.5cm x 2.8cm
Weight: 70g
Re: Powering 3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire (not CNC)
That unit is for DC motors, I thought you had steppers !
Re: Powering 3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire (not CNC)
Quote:
Originally Posted by
cropwell
That unit is for DC motors, I thought you had steppers !
I thought it would be ok ?
Re: Powering 3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire (not CNC)
Quote:
Originally Posted by
Fivetide
I thought it would be ok ?
Nope, you need a stepper driver.
It's perfectly possible to drive the step/dir signals into multiple drivers - probably preferable to driving potentially unmatched motors in parallel (and offers a choice of multiple supplies if the load becomes an issue), but its a cost balance for your solution.
FWIW - the motors you spec'd - 2A per phase, I guess 2 phase - that's potentially 4A per motor holding current, so you have to be very aware of driving these in parallel.
Speed and direction control are then determined by the state of the dir signal (CW or CCW) and the frequency of the Step line. You could knock up a speed controller using an Arduino Uno or similar and a few lines of C code, and for relatively little extra cost have a full digital control set-up. Happy to give you more info if you want.
Re: Powering 3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire (not CNC)
Quote:
Originally Posted by
Doddy
Nope, you need a stepper driver.
It's perfectly possible to drive the step/dir signals into multiple drivers - probably preferable to driving potentially unmatched motors in parallel (and offers a choice of multiple supplies if the load becomes an issue), but its a cost balance for your solution.
FWIW - the motors you spec'd - 2A per phase, I guess 2 phase - that's potentially 4A per motor holding current, so you have to be very aware of driving these in parallel.
Speed and direction control are then determined by the state of the dir signal (CW or CCW) and the frequency of the Step line. You could knock up a speed controller using an Arduino Uno or similar and a few lines of C code, and for relatively little extra cost have a full digital control set-up. Happy to give you more info if you want.
In my mind its a DC motor with the ability to do stepping ? But I don't need the stop start precision of the step. I just want a small DC motor to turn at below 109 RPM. Hence why I thought a regular DC pulse regulator would just spin it in one direction..
Re: Powering 3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire (not CNC)
Quote:
Originally Posted by
Fivetide
In my mind its a DC motor with the ability to do stepping ?
It's a motor where energising multiple windings sequentially results in movement, the stepper driver deals with this, just applying DC or even PWM DC will not run a stepper motor, try it ;-)
Quote:
Originally Posted by
Fivetide
I just want a small DC motor to turn at below 109 RPM. Hence why I thought a regular DC pulse regulator would just spin it in one direction..
Having control of precise steps allows you to use a frequency generator to create a precise RPM
Quote:
Originally Posted by
Fivetide
I just want a small DC motor to turn at below 109 RPM.
You could just use conventional DC motors with a PWM driver but you will find you have some variation of speed with identical motors driven from a common supply.
Re: Powering 3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire (not CNC)
Quote:
Originally Posted by
magicniner
It's a motor where energising multiple windings sequentially results in movement, the stepper driver deals with this, just applying DC or even PWM DC will not run a stepper motor, try it ;-)
Having control of precise steps allows you to use a frequency generator to create a precise RPM
You could just use conventional DC motors with a PWM driver but you will find you have some variation of speed with identical motors driven from a common supply.
DAMN ! I just want a analogue driver/supply turning all three motors at (approximately) the same speed in a single direction lol
Right then.. 3 of those stepper motor controllers that are all wired to a big pot ? ( I have a box full of big to little Pots )
Plus about 5 shelves of laptop power supplies of every variant I can name !!
I will do this ... it wont bloody beat me ..!! :)
Re: Powering 3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire (not CNC)
Re: Powering 3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire (not CNC)
Clive - Nail - On Head!
- Nick
1 Attachment(s)
Re: Powering 3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire (not CNC)
Quote:
Originally Posted by
Clive S
AHA ! Clive awesome.. just seen the picture on the listing ..thanks mate as always .. going to go with that setup and play around :)
Attachment 19680
