Gecko G201 and Drive Current, Conclusion.

Tim,
Yes I tried swapping the Gecko modules. Since then I've rewired the motor for series and reduced the current to 3 Amps.
Using an AC ampmeter in series with one winding I see the current peak at 2.3 Amps during startup, and settle down at about
0.95Amps. It would appear the Gecko is doing the job( I'm about 98% sure of that) and the motor is just not powerful enough
to overcome the startup requirements. The designer say's 160oz-in is needed to move the device, and the motor is rated at 435 oz-in.... !
( anyone have any comments on that I would welcome it )
Some numbers went wrong somewhere, but it's close. If I help the unit with a small push it starts and runs, but only just.

I checked PACSI list and a three stack motor of similar type can deliver 965oz-in , may be that's the way to go....

Thanks to everyone for the help.

Best regards
Hans Wedemeyer