PSU Series User Manual 
148 
5.  Press the Output key. The 
current can now be 
controlled with the isolated 
external voltage control. 
The input impedance of isolated external voltage 
control is 1MΩ. 
Use a stable voltage supply for the external voltage 
control. 
CV and CC Slew Rate Priority are disabled for V-I 
mode (F-03) when using external voltage control. 
See the normal function settings on page 99. 
Ensure the voltage polarity is correct when 
connecting the external voltage.  
Ensure no more than 10.5V (for the 0~10V setting) 
or 5.25V (for the 0~5V setting) are input into the 
external voltage input. 
Isolated External Current Control of Voltage Output 
 
Current control of the voltage output uses the 
isolated current option (PSU-ISO-I). A current 
of 4~20mA is used to control the full scale 
voltage of the instrument, where: 
Output voltage = full scale voltage × ((external 
current-4mA)/16mA)