ON 20090518@7:13:37 PM at page: On a web page you were interested in at: http://www.piclist.com/io/stepper/linistep/lini_use.htm#39951.7087731482 James Newton[JMN-EFP-786] Published and replied to post 39951.7087731482 by waikingyong |Insert 'The Motor power (12 or other) must be supplied by the user, in addition to the +5 logic power. The motor power should be at least a few volts over the rated voltage of the stepper motors and as much as 2 or perhaps 3 times as much as thier rated power, although more voltage means more heat in the drivers. The 4 Axis board provides an easy way to generate the +5 logic supply from the motor power as long as the motor power voltage is between 7 and 25 volts.' at: '' waikingyong@gmail.com asks:
Hi, I just put an order in for one of your linisteppers... can't wait to get it. I looked at your circuit diagram as shown on the main page, I notice that you connected the 12V DC motor power supply pin to the 470 microF capacitor, which then runs to GND, forgive my poor electronics knowledge, but how is this going to supply 12V DC? Also, if I want to supply power from a separate power supply unit with a different Voltage from 12 V, can I connect it there, and disregard this 470 microF connection you drew on that circuit diagram?
|Delete 'P-' before: '' but after: 'linistepperbox-nospam-@efreemans-nospam-com asks:
I'm having trouble following the supply voltage selection instructions. In one place it says add 5V or 10V to the motor rating and in another it seems to say more volts would be better. I want to control a 1.3A, 4 ohm, 5.2V, 11mH motor (Lin 5718M-15-09). My available supplies are 5V, 12V, 17V, 22V, 29V, 34V, 39V, 46V and 51V. All supplies have plenty of Amps for my motors. Peak load will be at about 600RPM and when accelerating from zero. Assuming I have plenty of transistor cooling, which voltage should I use to get the most oz/in out of this motor? Which step mode should I use for maximum oz/in? Why?
|Delete 'P-' before: '' but after: 'linistepperbox-nospam-@efreemans-nospam-com asks:
I'm having trouble following the supply voltage selection instructions. In one place it says add 5V or 10V to the motor rating and in another it seems to say more volts would be better. I want to control a 1.3A, 4 ohm, 5.2V, 11mH motor (Lin 5718M-15-09). My available supplies are 5V, 12V, 17V, 22V, 29V, 34V, 39V, 46V and 51V. All supplies have plenty of Amps for my motors. Peak load will be at about 600RPM and when accelerating from zero. Assuming I have plenty of transistor cooling, which voltage should I use to get the most oz/in out of this motor? Which step mode should I use for maximum oz/in? Why?
James Newton of Massmind replies: 12 or 17 would be best. Try 12, and if you need more speed go to 17.

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