Page 54
VP-X Installation and Operating Manual
Rev. D (August 5, 2020)
• Using the fuse-protected test lead, connect one wire to the positive
terminal of a battery (any battery is OK as long as it matches the
voltage of the aircraft battery). Check that the negative on the battery
is attached to the ground terminal or airframe.
• For each 2A, 3A, 5A, 10A and 15A circuit, push the male terminal
from the test wire into the connector (the female connector with the
wires going to it) and verify the device turns on. Note that certain
devices may have multiple independent power inputs, like a Garmin
430 or SL-30.
Connect the test lead to the female connector with the wires
going to it, not the male pins on the VP-X.
• Insert the wire into J10 Pin 1 and turn the starter switch and
verify starter contactor operation by an audible click.
Be sure
starter contactor is not connected to the starter
(until testing is
completed).
• Connect the other test lead wire to ground. Insert the wires into
J12 Pin 5 and Pin 6 and verify the flap motor operates through its
expected range of motion. Flipping the pins will change the direction
of the motor.
• Verify correct operation of the master switch. The PPS is silent when
turned on, but a traditional contactor will have loud click closed when
the switch is on. Turn off the master switch.
• Using an ohm meter or test lamp, verify each of the two ground wires
is grounded properly.
• Using the 22 gauge wire with the female d-sub terminals, connect
one wire to the positive terminal of a battery (any battery is OK as
long as it matches the voltage of the aircraft battery). Check that
the negative on the battery is attached to the ground terminal or
airframe.
• Connect the other wire to ground. Insert the wires into the correct
trim motor power terminals and verify the trim motor operates
through its expected range of motion. Flipping the pins will change
the direction of the motor.
• Verify each of the devices connected to the 2A circuits powers on
when the test lead is connected to J1.
• Using an ohm meter or test lamp, verify each of the pins coming from
a panel switch is grounded when the switch is turned on.
• Turn off the master switch.
• Remove any test leads and do a sweep to check for loose or
exposed wires. Leave the large wire to the starter disconnected until
asked to re-connect in the ground testing phase.
You are now ready to power up the system.
• Install each connector on the VP-X.
• Turn on the master switch to turn the system on. On a new VP-X,
the EFIS power is set to “always on” until you assign it to a switch,
however, we do recommend leaving it in the always on assignment
so that electrical information is available as soon as the screen boots
up. The switches and other functions will not work until the system is
configured.
Note
If you notice anything unusual, turn off the master switch
immediately.