Operation
Over Voltage Protection (OVP)
44
Operating Manual for XKW 1kW Series Power Supply
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 lamp 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.
Figure 3.5
SW1/J3 Configuration for 0-1mA Current Source OVP Programming
(J3 sense line, voltage and current control jumpers shown set for local operation)
Summary of Contents for XKW 600-1.7
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Page 3: ...Operating Manual for XKW 1000 Watt Series Programmable DC Power Supply...
Page 24: ...Features and Specifications Specifications 22 Operating Manual for XKW 1kW Series Power Supply...
Page 38: ...Installation Local and Remote Sensing 36 Operating Manual for XKW 1kW Series Power Supply...
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