AMETEK DCS-E 1KW Series - Manual (Page 37)

Sorensen DCS Series 1kW and 1.2kW Supplies Installation and Operation
M362500-01 Rev H 2-15
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
0-10V
1312
25
3 1
14
SWITCH SW1
OPEN
Switch SW1
SW1-1 Off (Open)
SW1-2 Off (Open)
SW1-3 Off (Open)
SW1-4 Off (Open)
SW1-5 Off (Open)
SW1-6 Off (Open)
SW1-7 Off (Open)
SW1-8 On (Closed)
Switch SW1 and Connector J3 Configuration
for 0-10 Vdc OVP Programming
(J3 sense line, voltage control and current control jumpers shown set for local operation)
2.9.3 Remote Programming of OVP with an External Resistance
To remotely program the OVP trip level using a 5k ohm external potentiometer, use the
following procedure.
1. With the unit off and disconnected from its AC source remove the cover, set switch
SW1-8 open and check that switch SW1-4 is closed (default factory setting for
switch SW1-4).
2. Connect the counterclockwise end of the 5k potentiometer to pins 3 and 16 of
connector J3. Connect the tap and the clockwise end of the potentiometer to pin 12.
Set the potentiometer fully clockwise.
3. Turn the unit on and adjust the output to the desired trip voltage.
4. Slowly turn the potentiometer counterclockwise 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.