Local Operation
3-46
M370185-01
Configuring Multiple Supplies for Current Sharing Operation (APG
Method)
Up to four power supplies can be connected in parallel to increase the
output current. One of the units will operate as the master unit and the
remaining units will operate as slave units controlled by the master unit.
The master unit uses the analog programming lines to set the output
voltages and currents of the slave units to match its output.
In remote digital operation, only the master unit can be programmed
remotely while the slave units that are connected remotely will only
provide voltage, current and status readback information.
In APG current sharing topologies, only the master unit can be
programmed using any of the input methods (front panel, remote digital,
or analog programming control). The slave unit(s) voltage and current
output(s) are determined by the master unit through the REF_I input to
each slave unit. The readback using any of the monitoring methods (front
panel display, user monitor lines or SCPI measure commands) of each
unit (master or slave) will provide individual unit status, not system
status.
Setting up the Controller Unit
Set the output voltage of the master unit to the desired voltage. Program
the current set point of the master unit to the desired load current set point
divided by the number of parallel units. During operation, the master unit
operates in Constant Voltage mode, regulating the load voltage at the
programmed output voltage. Send the Current share SCPI command or
use the following instructions to program front panel current share setup:
1. With the 9-position mode control at the PGM position, press the
rotary Adjust/Enter control.
rE
is displayed on the output voltage display.
2. Turn the rotary Adjust/Enter control to select
CurrShAr
and press the
Adjust/Enter control.
C5hr
is displayed on the output voltage display.
3. Turn the rotary Adjust/Enter control to select
Con7
in the output
current display.
Important:
If current sharing is not being used, the unit must be
configured as a controller. Failure to do so will result in unpredictable
operation.
Summary of Contents for Soresen XTR 100-8.5
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Page 16: ...xiv ...
Page 28: ...1 8 ...
Page 50: ...Local Operation 3 8 M370185 01 Figure 3 3 Front Panel Menu System ...
Page 93: ...Using Multiple Power Supplies M370185 01 3 51 3 ...
Page 94: ...Local Operation 3 52 M370185 01 ...
Page 128: ...Analog Programming APG and Isolated Analog Programming ISOL 4 34 M370185 01 ...
Page 198: ...Remote Operation 5 70 M370185 01 ...
Page 261: ...SCPI Command Tree M370185 01 A 35 A ...
Page 262: ...A 36 ...
Page 279: ...Index M370185 01 IX 3 described 3 7 3 36 number available 3 36 stored values 3 36 ...
Page 280: ...IX 4 ...