SORENSEN DCS SERIES MANUAL INSTALLATION and OPERATION
2-9
2.7 Single Supply Operation (Local Mode)
To operate the DCS power supply in local mode, first install the unit and connect the load following the
instructions in Sections 2.1 to 2.6. Check that switch SW1 (mounted internally on the main printed circuit board)
is set for local operation and that the J3 mating connector on the rear of the unit is in place with jumpers connected
for local operation. (Note: This is the default configuration as shipped from the factory. See the diagram below.)
Set both the current and voltage controls fully counterclockwise.
SW1-1
SW1-2
SW1-3
SW1-4
SW1-5
SW1-6
SW1-7
SW1-8
CLOSED
13
25
1
14
OPEN
Switch SW1
SW1-1 Off (Open)
SW1-2 Off (Open)
SW1-3 Off (Open)
SW1-4 On (Closed)
SW1-5 Off (Open)
SW1-6 Off (Open)
SW1-7 Off (Open)
SW1-8 On (Closed)
Switch SW1 and Connector J3 Configuration for Local Operation
(Default factory settings)
For voltage mode operation, turn the current control fully clockwise and then adjust the voltage control to obtain
the desired output voltage. For current mode operation, turn the voltage control 1/2 turn clockwise, the current
control fully counterclockwise and connect an appropriately sized shorting jumper across the output terminals.
Turn the current control clockwise until the desired output current is obtained. Turn the power supply off, remove
the shorting jumper, turn the voltage control fully clockwise and turn the power supply on.
Note that for a short period (less than 2 seconds) after power on, the power supply output is disabled and the
current mode LED is illuminated while the main filter capacitors charge through the inrush limiter.
2.8 Multiple Supplies
DCS Series power supplies of the SAME MODEL may be operated with outputs in series or parallel to obtain
increased load voltage or current. Split supply operation allows two positive or a positive and negative output to be
obtained.
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