- SPX Electric Screwdrivers User's Manual
SD25 Series Screwdrivers 
Page 16  T-40409-A  39-30-40409 
The screwdriver inputs are software selectable using VS. To enable the push-to-start function, assign 
the Cycle On input to Input 8, and assign the Cycle Enable input and Clear Outputs input to the 
Trigger. The typical inputs for a screwdriver with push-to-start function enabled are shown below. 
Throttle/Trigger lever
Forward/reverse button
•
Press to enable the fastening cycle 
•  Release to stop the screwdriver 
•
Press and release 2 times to change the 
parameter sets 
•  Press and release to 
change the direction 
Multi-purpose (auxiliary) button 
•  Push to start the fastening cycle 
•  Release to stop the screwdriver 
Push-to-start 










