Over Voltage Protection (Ovp); Front Panel Ovp Operation - Xantrex XKW 8-125 Operating Manual

Operation

Over Voltage Protection (OVP)

Over Voltage Protection (OVP)
The OVP circuit allows for protection of the load in the event of a remote
programming error, incorrect voltage control adjustment, or power supply failure.
The protection circuit monitors the output and reduces the output voltage and current
to zero whenever a preset voltage limit is exceeded. A red LED on the front panel
indicates when the OVP circuit has been activated. Resetting the OVP circuit after
activation requires removal of the overvoltage condition and powering the unit OFF
and back ON or momentarily activating the remote shut down circuit. See
ON/OFF" on page 46
level can be set using either the front panel potentiometer or by using one of three
remote programming methods (voltage, resistance or current) through the J3
connector at the rear of the unit. Please see
to disable OVP for parallel operation.
Front Panel To set the trip level from the front panel use the following procedure:
OVP
1. With the unit off and disconnected from its AC source remove the cover and
Operation
2. Using a small, flat-bladed screwdriver through the OVP ADJUST hole in the
3. Turn the unit on and adjust the output to the desired trip voltage.
4. Slowly turn the adjusting screw counter clockwise until the red OVP indicator
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
40
for information on shutdown circuit operation. The OVP trip
check that switches SW1-4 and SW1-8 are closed (factory default setting). Also
check that the jumper between pins 3 and 16 of connector J3 is in place.
front panel, turn the adjusting screw fully clockwise (until audible clicking is
heard or 20 turns maximum).
lamp lights.
power supply shuts off the output at the desired voltage.
"Parallel Operation" on page 39
Operating Manual for XKW 1kW Series Power Supply
"Remote
for how