Page 77
VP-X Installation and Operating Manual
Rev. D (August 5, 2020)
Appendix C – VP-X System Annunciators
The following VP-X annunciators are displayed on the EFIS:
Alarm Description
TRIM RUNAWAY The trim switches are disabled because:
1 - Opposite trim switches were active for at least 3 seconds. The fault can be cleared from the
EFIS. If it won’t clear, a trim switch is still active.
2 - If displayed at startup, the trim system internal checks failed, indicating a hardware failure. Cycle
power to see if the problem persists. The fault can be cleared normally and the trim likely works, but
indicates a failure that may lead to a future runaway trim condition. Flight is not recommended.
TRIM DISABLE The VP-X was powered on while a trim switch is active, disabling all of the trim switches. You must
repair the trim switch problem and cycle system power to restore functionality (to discourage ight
with a faulted trim system). Trim can be operated via the EFIS.
TRIM SWITCH ACTIVE A runaway trim condition is not able to be cleared because a trim switch input is still active. The
system will not re-enable the trim switches while a trim switch input is active. Trim can be operated
via the EFIS.
FLAP RUNAWAY The ap switches are disabled because:
1 - Both the ap up and ap down switches were active for at least 3 seconds. The fault can be
cleared from the EFIS. If it won’t clear, a ap switch is still active.
2 - If displayed at startup, the ap system internal checks failed, indicating a hardware failure. Cycle
power to see if the problem persists. The fault can be cleared normally and the aps likely work, but
indicates a failure that may lead to a future runaway ap condition. Flight is not recommended.
FLAP DISABLE The VP-X was powered on while a ap switch is active, disabling the ap switch. You must repair
the ap switch problem and cycle system power to restore functionality (to discourage ight with a
faulted ap system). Flaps can be operated via the EFIS.
FLAP SWITCH ACTIVE A runaway ap condition is not able to be cleared because a ap switch input is still active. The
system will not re-enable the ap switch while a ap switch input is active. Flaps can be operated
via the EFIS.
FLAP OVERSPEED The aps are extended above the specied airspeed.
STARTER The starter contactor is closed.
WIG-WAG The landing lights are on and either warming up or pulsing (wig wag).
VP-X DATA FAULT
DATA INTEGRITY
The VP-X has either:
1 - Failed internal data integrity checks. The system resets to its default values and the EFIS turns
on to display the specic fault. The switch settings, trim and aps settings are cleared and do not
operate. The EFIS may be able to restore the settings to the VP-X. Flight is not recommended until
the VP-X is re-congured.
2 – Communication with processor on bank B is lost. (Pro model only)
3 – The system is unable to accurately read the voltage on the main power bus.
Connect the VP-X to a PC using the Ethernet cable to read the specic fault.
OVER-VOLTAGE An overvoltage condition occurred and the alternator eld was faulted to clear the condition.
VP-X NO EFIS DATA The VP-X is not receiving data from the EFIS.
VP-X COMM LOSS The EFIS is not receiving data from the VP-X. The VP-X will continue to operate normally and
provide circuit protection. However, any data normally displayed by the EFIS is no longer available.
VP-X HIGH CURRENT The VP-X is operating near its maximum current limits. Turn off devices to reduce current.
VP-X MAX CURRENT The VP-X is operating over its maximum current limits. Turn off devices to reduce current.
Short Circuit
Over Current
Current Fault
Over-Voltage
Fault is displayed on the electrical system page in association with the faulted circuit.
VP-X RESET The VP-X performed an internal reset. Verify normal operation of system. Cycle power to reset.
Report the problem to tech support if this happens on a frequent basis.
Wig-Wag Cong A pin used for wig wag cannot be set to switch 0 (always off), 11 (always on) or as the secondary
alternator.
To Next Page