PSW Series User Manual 
86 
Configuration settings can be checked for both the 
master and slave units by pressing the Function 
key. 
Only operate the power supplies in series if the 
units are configured correctly.   
1.  Turn on the master and slave unit. The slave 
unit will only show the combined voltage of 
both units while the master unit will show both 
the combined voltage and the current of both 
units. 
2.  Operation of all units is controlled 
via the master unit. Operation of 
the master unit is the same as for a 
single unit. Please see the basic 
operation chapter for details. 
3.  Press the Output key to begin. 
Only operate the power supplies in series if using 
units of the same model number. 250V and 800V 
models do not support series operation! 
Only a maximum of 2 units can be used in series. 
The panel controls are disabled on slave units, 
including the output key.