Posted 05 October 2002 - 12:57 AM
Posted 06 October 2002 - 05:05 AM
I'll keep digging and let myself know whenever i find out...
Posted 07 October 2002 - 04:11 AM
From memory (it's been a while since I last played with a stepper motor), the reason you have 2 seemingly similar stepper motors is all to do with the maximum stepping speed for which each is designed.
I think the lower current higher Voltage version would be designed for optimal performance up to a maximum of around 160 steps per second for a small stepper, when running from a stepper drive with 5V nominal source.
The high current / low Voltage device may be suitable for 'high speed' operation with added external resistors to decrease the time constant / increase the current rise time (...Tconst = L/R, remember). This combination requires a stepper drive with a higher source Voltage (~12V?) and results in higher overall losses.
I must admit I'm a bit rusty on all this.
Does this help?
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