FTP Series Programmable DC Power Supply Operation Manual
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3.11.4 Master Setting
When finished setting slave power supply, set master power supply according to following procedures:
1. Press
, select “Parallel” sub menu under “Set” menu, press “Enter” to enter into parallel setting
interface;
2. Set “M_or_S” value as Master;
3. Set “P_or_S” according to actual situation (parallel or serial operation);
4. Set ”S.NUM” according to actual slave power supply units (range 1~4);
5. Set “MS_CTRL” value as ON.
When “MS_CTRL” is turned ON, the master power supply starts searching slave power supplies and building
communication. Users only need to operate the master unit to control all power supplies. Pay attention that once
“MS_CTRL” is ON, it is not allowed to modify parameters in “P_or_S” and “S.NUM”.
After setting parallel/Serial operation parameters, press
to return to main interface, screen shall display
the whole group’s specifications, and shows operation mode (
∑
-P stands for parallel,
∑
-S stands for serial).
Figure 3-25 Parallel Master Display
3.11.5 Parallel/Serial Operation V/I Setting
After correctly setting the parallel or serial operation, users are able to configure the voltage, current, etc.
parameters on master power supply, and view the readback information of the whole group such as readback
voltage, readback current, readback power and other status information. The master power supply’s output
voltage, output current, output power setting range are also automatically updated, operating the whole group is
as simple as operating a single power supply (constant power output mode and sequence output mode does not
support parallel/serial operation).
For example, parallel 5 units FTP-80-60. In master power supply, the allowed output current setting range expands
to 5 times of a single power supply, i.e. max. output current 300A, max. output voltage remains 80V.
If serial connect 5 units FTP-80-60. In master power supply, the allowed output voltage setting range expands to 5
times of a single power supply, that is maximum output voltage 400V, max. output current remains 60A.
