Re: [CAD_CAM_EDM_DRO] steppers have no torque/resistance until a "move" command is issued??

The reason for that is the G201 has a reduced current mode. When you are not
stepping it the current to the motors is reduced to 30% of the set value.
This is normal. For a shoptask that has the built in nema34 motor mounts I
would recommend stepper motors in the 400-500 oz in range.

Dan

----- Original Message -----
From: "Mike Mueller" <mueller914@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, March 29, 2004 9:15 AM
Subject: [CAD_CAM_EDM_DRO] steppers have no torque/resistance until a "move"
command is issued??


> I just wired up my Shoptask with some G201's and 23 sized motors.
> With the motors on the bench, I noticed that as soon as I power up the
> powersupply and Gecko's, I can twist the shaft of the motors with my
> fingers. Once I issue a command and move the motor any amount, it
> seems to energize and now it'll have "locking" or stationary torque.
>
> Is this normal or should the steppers immediately energize at initial
> powerup???
>
> Thanks,
>
> Mike
>
>
>
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