Highspeed servo drivers

[CNCadmin]

Rutex has new highspeed servo drivers-

R990H - High speed Step&Dir servo drive.

100V/20A output for brush motors.

> 1Mpps encoders speed.

Quiet 19.5kHz PWM.

[CNCadmin]

R991H - High speed Step&Dir servo drive.

+/- 8 Volts output.

> 1Mpps encoders speed.

[johnm]

Hey those look pretty good, I guess they allow for much high running speeds?

[routerman]

I used 3 Rutex on a retrofit mill , they worked excellent.
I couln't get Gecko servo drives to work reliably. There error range wis too small, they smallest disturbance makes them fault.

[marting]

Hi Routerman,
I've been told by balsaman that you have used Rutex drivers and from what I see confirmed that I've done the choice. I have a small question though, what kind and make of feedback encoders did you use? Awaiting yuor reply.
Rgds
Martin

[routerman]

The motors were large surplus tape drive DC motors with 2000 count encoders. The Rutex arn't a fussy drive. They worked even when the encode wasn't aligned well. Although I put them on a scope and adjusted them and they worked perfect.
PS: I know other people that couldn't get the Gecko to work reliably as well.