Simple. The G901 / G902 runs on 5VDC. The logic in the G201 works on
+12VDC while the logic in the G320 is +5VDC.


To accomodate both, the G901 carries a 78L05 +5VDC regulator.

For the G201 step motor drives, it's used to bring the +12VDC down to
+5VDC for what's required for it to operate.

For G320s, whose logic runs at +5VDC anyway, this regulator is
twisted out and thrown away.

Otherwise there is no difference.

Mariss





--- In geckodrive@yahoogroups.com, JanRwl@A... wrote:
>
> In a message dated 12/1/2004 7:12:28 PM Central Standard Time,
> mariss92705@y... writes:
>
> There is no manual for the G901 / G902 because it originally was
> intended to be used only with our drives.
>
>
> What is DIFFERENCE between 901 and 902 ???
>
>
> [Non-text portions of this message have been removed]