GULLCO GP-175-006, Parts List & Operating Instructions

T-7

the direction selected at the speed set by the Variable Speed Control Knob.  The speed may be 
adjusted at any time and the manual motion may be stopped by placing either the Run/Stop switch 
in the Stop position or by placing the Forward/Neutral/Reverse switch in the Neutral position. 

AUTOMATIC MODE - To place the control in automatic mode (enable the preset cycle), with the 
power on, place the Run/Stop switch in the Stop position.  Then continually press the Cycle Push 
Button until the display shows “Aut” (the Preset Cycle L.E.D. will be illuminated).  While the control 
is in automatic mode, the automatic cycle is usually initiated by placing the 
Forward/Neutral/Reverse switch in the desired travel direction (if applicable), and placing the 
Run/Stop switch in the Run position.  When the automatic cycle has completed, the display will 
show “End” and the “Hold” (stop) L.E.D. will flash, indicating the need to reset the Autocycle by 
placing the Run/Stop switch in the Stop position before another automatic cycle may be initiated.  
The automatic cycle may be aborted at any time by placing the Run/Stop switch in the Stop 
position.  The welding/cutting speed may usually be adjusted at any time during an automatic cycle. 

PROGRAM VARIABLE ADJUSTMENTS 

Program Variables are adjustable parameters available to the operator that determine the 
functionality, and allow fine-tuning, of the automatic cycle operation.  

Note:- Not all GSP 

product/application specific micro-processor chips provide program variables - refer to the 
manual for the specific machine or specific micro-processor chip for further details.

The Program Variable Selector switch is located between and below the Run/Stop and the 
Forward/Neutral/Reverse switches.  Some GSP controls are equipped with extended Program 
Variable Selector switches, which come through the faceplate of the control.  Others are recessed 
and require the removal of a hole-plug for access and a small flat-bladed screwdriver for 
adjustment. 

Zero (0) (top dead center) is the normal operating location for the switch.  When in any position 
other than zero (0) the control is in programming mode, the round, 

Preset Cycle L.E.D. 

in the bottom 

right hand corner of the display will flash and the motor control will not allow normal operation. 

To make changes to the program variables (where available), remove the hole plug on the front 
face which covers the recessed Program Variable Selector switch (where applicable).  With the 
power turned on and the Run/Stop switch in the Stop position, rotate the Program Variable Selector 
switch to the variable (parameter) to be altered (the Preset Cycle L.E.D. will flash on and off).  Most 
product/application specific micro-processor chips will display the number of the parameter on the 
display when the Forward/Neutral/Reverse switch is in the Neutral position.  I.e. “P. 1”, “P. 2”, “P. 3”, 
etc.  To see the current value/setting of the variable, place the Forward/Neutral/Reverse switch in 
either the Forward or Reverse position. To increment the value/setting, place the 
Forward/Neutral/Reverse switch in the Forward position and press the Cycle Push Button.  To 
decrement the value/setting, place the Forward/Neutral/Reverse switch in the Reverse position and 
press the Cycle Push Button.  Pressing the Cycle Push Button briefly will increment/decrement the 
value/setting by one, whereas keeping the Cycle Push Button depressed will scroll through the 
values/settings until released.  The speed display and or the individual L.E.D.’s will indicate the 
chosen value/setting.  When all of the program variables are set, place the Program Variable 
Selector switch back to the zero position (the Preset Cycle L.E.D. will stop flashing) and re-insert 
the hole-plug (where applicable). 

The values/settings of the variables are stored on the product/application specific micro-processor 
chip.  If the chip is replaced, the values/settings of the variables will need to be re-entered.