Please help regarding a Graupner C577 servo...

Archiver

I have bought a graupner C577 standard servo, and it seems
impossible to make it run! The one thing it does is that it parks
on max ccw position. No Matter What I Do ... Frustrating!
The setup is a BS1 Project Board, 4x1.5volt batterier for servo, 9v
battery for BS1.

I have for example used the following code:
' {$STAMP BS1}
' {$PBASIC 1.0}

SYMBOL Servo = 0
SYMBOL temp = B2

Setup:
LOW Servo

Main:
' center (stop)
FOR temp = 0 TO 200
PULSOUT Servo, 150
PAUSE 20
NEXT

' cw
FOR temp = 0 TO 200
PULSOUT Servo, 100
PAUSE 20
NEXT

' ccw
FOR temp = 0 TO 200
PULSOUT Servo, 200
PAUSE 20
NEXT

GOTO Main

Anybody who know something about a graupner c577? Either the servo
is bad, or my mind is bad, or C577 is no good using with BS1, or ...?
And, btw, the servo gets quite hot after qa while. Normal?

THANKS!!
/ Mike

Archiver

--- In basicstamps@yahoogroups.com, "mikaelaxen" <micke.axen@t...> wrote:
>
> I have bought a graupner C577 standard servo, and it seems
> impossible to make it run! The one thing it does is that it parks
> on max ccw position. No Matter What I Do ... Frustrating!
> The setup is a BS1 Project Board, 4x1.5volt batterier for servo, 9v
> battery for BS1.

> / Mike

Make certain the grounds for the servo and the stamp are tied
together. It's a more common (and easy) thing to forget than you might
think. ;-)

Stephen Weller
American. Veteran. Patriot.