User Manual
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8.  Repeat the above steps for each power supply that you want to 
connect together and control, making sure that each of them 
have a different address assigned. 
9.  Connect the USB of the first supply (address 1) to the computer, 
then use the Multi-Unit Programming commands to 
communicate with each power supply. Refer to “4.7 Multi-Unit 
Programming Commands”. 
When connecting multiple power supplies (of the same 
model) in parallel while in chain mode, there will be a 
decrease in speed and performance with each additional 
units connected in parallel. The voltage and current 
scan speed, which affects the synchronization between 
the power supplies, between the slave units and the 
master unit will increase based on the following 
formula: 
250 * N (in milliseconds) 
where N is the number of power supplies (of the same 
model) in parallel. Please note as more power supplies 
are paralleled and linked together, speed will become 
slower. Thus, we do not recommend paralleling more 
than 4 power supplies while in chain mode to ensure 
fast performance. Parallel mode is recommended when 
the application requires paralleling 5 to 10 power 
supplies. Refer to section 3.6 Parallel Operation for 
more details. 
If the application requires connecting more than 10 
power supplies in parallel operation, we advise to 
contact us at www.bkprecision.com for further 










