Installation and Operation
Sorensen DCS Series 1kW and 1.2kW Supplies
2-14
M362500-01 Rev K
2.9.2
Remote Programming of OVP With External Voltage Sources
To remotely program the OVP trip level using a 0-5V or 0-10V DC voltage source, use the
following procedure:
1. With the unit off and disconnected from its AC source, remove the cover and set
switch SW1-4 closed (default factory setting) for 0-5V programming or open for 0-
10V programming. Also check that switch SW1-8 is closed (default factory setting).
Set the front panel OVP adjusting potentiometer fully clockwise (until audible clicking
is heard or 20 turns maximum).
2. Remove the default jumper connecting pins 16 and 3 of connector J3 and connect
the voltage source between pins 3 (positive) and 12 (negative). Set the
programming source voltage to maximum.
3. Turn the unit on and adjust the output to the desired trip voltage.
4. Slowly reduce the programming voltage until the red OVP indicator lights and the
power supply shuts down.
5. Turn the POWER switch to OFF.
6. Turn the voltage control knob to minimum.
7. Turn the POWER switch back ON and increase the voltage to check that the power
supply shuts off the output at the desired voltage.
S
W
1
-1
S
W
1
-2
S
W
1
-3
S
W
1
-4
S
W
1
-5
S
W
1
-6
S
W
1
-7
S
W
1
-8
CLOSED
CONNECTOR J3
0-5V
1312
25
3
1
14
SWITCH SW1
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 0-5 Vdc OVP Programming
(J3 sense line, voltage control and current control jumpers shown set for local operation)
