DC Asterion Series  Overview  
M330460-01  Rev A  3-11 
  In HW trigger mode, when external trigger is received, Waiting for 
Trig will change to Abort button, refer to Figure 3-24. Pressing the 
Abort button aborts the ramp. 
 
 
  Figure 3-24.  Voltage Ramp-Screen (Abort) 
 
Exit  Exits the Voltage Ramp sub menu and return to Ramp Screen Top 
level menu, refer to Figure 3-19. 
NOTE: You cannot exit out of Voltage Ramp Screen using HOME and UP arrow, these 
buttons are disabled for the Voltage Ramp Screen; Refer to Figure 3-20. 
 
Example 1: Creating a Voltage ramp using Software Trigger mode 
•  Set the Volt to 25V 
•  Set the To Volt to 50V 
•  Set the Curr to 20A 
•  Set the Time to 10s 
•  Select the Trigger mode as SW (software) 
•  Click on Initialize 
•  Click on Trigger Ramp 
•  Observe that Trigger Ramp button will change to Abort button 
•  Observe the voltage ramp signal using oscilloscope 
•  Clicking on the Abort button will abort the ramp. 
•  Clicking on the Exit button will exit the Voltage Ramp screen. 
 
Example 2: Creating a Voltage ramp using Hardware Trigger mode 
•  Set the Volt to 25V 
•  Set the To Volt to 50V 
•  Set the Curr to 20A 
•  Set the Time to 10s 
•  Select the Trigger mode as HW (Hardware) 
•  Click on Initialize 
•  Observe that Trigger Ramp button will change to Waiting for Trig. 
•  Give an external trigger i.e. an active high pulse of 10ms on the MOLEX 
connector pin-8 (TRIGGER_IN) and pin-12 (DIN_RTN) to generate the 
Voltage Ramp. 
•  Observe that Waiting for Trig will change to Abort button. 
•  Observe the voltage ramp signal using oscilloscope