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Third party software and hardware support forums. => Third party software and hardware support forums. => Topic started by: nic6911 on October 25, 2011, 03:51:57 PM

Title: Stepper amps and voltage
Post by: nic6911 on October 25, 2011, 03:51:57 PM

Hi everybody.
I have recently bought a couple of steppers and a Gecko G540, but I am not sure how many amps and volts my steppers should take. I have to add a resistor on the db9 connector on the gecko, the rated amp X1000 that is 2kOhm if the rated current is 2A.
If i got this right, it will take 4Amps when in parallel, and 2V X 20 = 40V - that means i will have to use a 3.5Kohm resistor as the gecko can only provide 3.5amps maximum and 40v? or should i use 48V?

Regards Nic

Title: Re: Stepper amps and voltage
Post by: RICH on October 25, 2011, 05:20:21 PM

You may want to check out the Gecko site as they provide a lot of good information on their specific drives, power supplies, etc.
RICH

Title: Re: Stepper amps and voltage
Post by: ger21 on October 25, 2011, 06:06:33 PM

For Voltage, Gecko recommends 32* square root of inductance, which is about 40V.

As for amps, yes, set it for 3.5 amps. You'll lose about 12% of your torque, but it should perform better at higher speeds than if wired series at 2 amps.

Title: Re: Stepper amps and voltage
Post by: nic6911 on October 26, 2011, 01:19:37 PM

Hi.
Thanks for the reply. I have read the manual from Gecko, but i just want'ed to be sure.

thanks!