Local Operation 
 
M370430-01  Rev B  3-15 
The reverse operating mode change can also occur if the load resistance 
is increased to the point that the required load current drops below the 
I
SET
 
value. At that point the power supply would crossover to CV mode 
and the load current would be free to vary as the load resistance 
changed. 
Load current (V) 
Load current (A) 
 
Figure 3-3  Operating Modes 
To set the voltage set point (V
SET
)
:
 
1.  Turn the 9-position mode control to the VOLTS position or 
press the rotary Adjust/Enter control if the 9-position mode 
control is already at the VOLTS position. 
The voltage set point is blinking in the output voltage display. The 
output current will be displayed in the output current display. 
2.  Set the desired voltage value using the rotary Adjust/Enter 
control. 
Important: If you can't get the set point to the desired level, you may need to 
change the set points for OVP. 
3.  Press the rotary Adjust/Enter control to transition to Fine 
Adjust mode. 
The set point will blink faster to indicate fine adjust tracking mode. 
4.  Set the desired voltage value using the rotary Adjust/Enter 
control. 
Load current  
 
Load voltage