AMETEK DCS-E 1KW Series - Manual (Page 38)

Installation and Operation Sorensen DCS Series 1kW and 1.2kW Supplies
2-16 M362500-01 Rev H
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
5k OHMS
CCW
1312
25
10
22
1 3
14 16
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 Off (Open)
Switch SW1 and Connector J3 Configuration
for 0-5k OVP Programming
(J3 sense line, voltage control and current control jumpers shown set for local operation)
2.9.4 Remote Programming of OVP with External Current Sources
To remotely program the OVP trip level using a 0-1mA current source use the following
procedure.
1. With the unit off and disconnected from its AC source remove the cover and set
switches SW1-4 and SW1-8 closed (default factory setting).
2. Using a small flat bladed screwdriver through the OVP ADJUST hole in the front
panel, turn the adjusting screw fully clockwise (until audible clicking is heard or 20
turns maximum).
3. Remove the default jumper connecting pins 16 and 3 of connector J3 and connect
the current source between pins 3 (positive) and 12 (negative). Set the
programming source to 1mA.
4. Turn the unit on and adjust the output to the desired trip voltage.
5. Slowly reduce the programming current until the red OVP indicator lights and the
power supply shuts down.
6. Turn the POWER switch to OFF.
7. Turn the voltage control knob to minimum.
8. Turn the POWER switch back ON and increase the voltage to check that the power
supply shuts off the output at the desired voltage.