EFD1000 Installation Manual
DOCUMENT # A-01-126-00 PAGE 39-225 Revision H
© Copyright 2009 Aspen Avionics Inc.
5.4 PART 135 IFR Operations
The 30 minute back-up battery in the PFD is not approved for use as a power source to meet
the electrical power source requirement for single engine Part 135 IFR operations under 14
CFR 135.163.
5.5 Setting V-SPEED Textual Markers
Have the aircraft operator complete “Operator Configuration Checklist” in Appendix C so that
this data is available prior to configuring the system in Section 10. We suggest making a copy
of this form and have it signed by owner/operator, then put a copy in Installation Package.
5.6 Optional Interfaces
5.6.1 Autopilot
The EFD1000 Pro with ACU emulates a KI-525A or NSD-360A HSI by providing HDG
Datum, CRS Datum, and navigation L/R outputs to a connected autopilot. Any
autopilot compatible with the KI-525A or NSD-360A HSI is compatible with the
EFD1000 System.
Similarly, the EFD1000 Pro with ACU emulates the KI-254, KI-256, G-550A, and 52C77
flight director indicators by accepting FD signals compatible with these indicators and
displaying them on the EFD. Any autopilots that output a flight director signal that is
compatible with the KI-254/256, G-550A, or 52C77 is compatible with the EFD1000
System.
Section 9 of this document shows interconnect diagrams for common autopilots that
are compatible with the EFD1000. Because the EFD1000 outputs Heading Datum and
Course Datum via the ACU the existing HSI/DG is no longer required to provide this
output to the autopilot.
In addition, some existing autopilots that have only a DG installed (i.e. no HSI) will gain
full HSI features with the installation of the EFD1000 System. Please check the
manufacturers’ installation data for any jumpers or hardware that needs to be added or
removed from the autopilot to add the HSI interface.
When the EFD1000 System is installed, the ACU controls all analog navigation signals
provided to the autopilot. Navigation signal output to the autopilot is switched
depending on which sensor is coupled to the EFD1000 HSI. Therefore the
LT/RT/UP/DN, flags, and ILS Energize must only be connected between the ACU and
autopilot, and there should be no direct connection between the navigation receiver
and the autopilot.
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