Gullco GP-200 - Manual (Page 8)

6
Operation with Optional Footswitches
Run/Stop Footswitch  GP-200-024:
Place the GSP-1000 Run/Stop switch in the Run position, and the Forward/Neutral/Reverse switch
in the desired direction. When the footswitch is activated, the positioner will rotate in the direction
chosen at the speed set by the adjustable speed potentiometer. Release the footswitch to cease
rotation.
Variable Speed Footswitch  GP-200-025:
Place the GSP-1000 Run/Stop switch in the Run position, place the Forward/Neutral/Reverse
switch in the desired direction and use the adjustable speed potentiometer to set the maximum
desirable rotation speed. When the footswitch is activated, the positioner will rotate in the direction
chosen. The rotary speed will be controlled by the amount that the variable speed footswitch is
depressed. The variable speed range of the footswitch is from zero rpm up to the maximum set by
the GSP-1000 adjustable speed potentiometer. I.e. if the GSP-1000 adjustable speed
potentiometer is set to 40% of full speed, the variable speed range available through the footswitch
will be from 0 to 40%. Release the footswitch to cease rotation.
Forward/Stop/Reverse Footswitch  GP-200-023:
Place the GSP-1000 Run/Stop switch in the Run position, and the Forward/Neutral/Reverse switch
in the Neutral position. When the footswitch is activated, the positioner will rotate in the direction
chosen by the footswitch at the speed set by the adjustable speed potentiometer. Release the
footswitch to cease rotation.
LOADING
Before mounting any load to the positioner, the tilt locking adjustable lever should be tested for
tightness. When loading the work piece onto the table, take account of the weight, centroid
eccentricity and centroid height of both the work piece and all clamping fixtures. When the work
piece is large and its weight is one sided at the peripheral portion, inertia start and stop is severe
and can cause an overload situation. Wherever possible, counterbalance weights should be used
to reduce this stress. Take into consideration the additional weight and distribution of the
counterbalance.
WARNING! Lower work pieces onto the turntable gently. Impact and shock loads are many
times greater than the "dead-weight” of the work-piece. Dropping loads onto the
table can result in damage!
WARNING! Do not use impact or shock techniques to clamp and unclamp self-centering grippers
mounted to the positioner turntable. The shock will be transferred to the drive
system resulting in damage!