EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 207-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
Figure E9: EA100 to KAP100/KAP150/KFC150 Attitude Source w/DISC
1
2
2
A/P AHRS FAIL light must be installed in the pilots primary field of view. Use light/dimmer/
test switch P/N MS25041-4. Wire as shown.
43
44
A/P AHRS COMM
A/P AHRS INVALID
A/P AHRS FAIL
GENERAL INSTALLATION NOTES
All wires in this section 22AWG unless otherwise specified
All grounds should be as short as possible
Terminate all shields within connector back shell
H
AP POWER
KI 25X
A/P circuit
breaker
(existing)
existing wire
P2
2
1
3
MS25041-4
20 AWG
20 AWG
Use 20 AWG or wire size appropriate for A/P circuit breaker rating. Wire may be spliced
to a 22 AWG wire not more than 4 inches in length at the EA100 to accommodate the
high density pin size.
5
5
Before
A/P DISC Switch OR Relay Connection (partial)
KC19X
Existing Wire
A/P
DISC
To A/P
circuit
breaker
OR
To A/P
Sonalert
To A/P
circuit
breaker
C
NO
NC
A/P
DISC
“Existing” AP
DISC Relay
A/P DISC IN
19X1 19X2
B
EA100
41
39
18
3
16
1
P2
AP EXCITE HI
AP EXCITE LO
AP ROLL HI
AP ROLL LO
A/P INTRLK COMM
A/P INTRLK ENERGIZED
17
2
AP PITCH HI
AP PITCH LO
C
Y
21
GYRO EXCITATION
VERT GYRO PITCH
19X1
KC19X
Z
VERT GYRO ROLL
VERT GYRO REF
To A/P
circuit
breaker
C
NO
NC
A/P
DISC
The existing autopilot disconnect circuit must be run through an internal relay within the
EA100. This ensures the autopilot cannot be engaged or will disengage if the EA100
attitude is invalid.
The autopilot “sonalert” or disconnect tone must not be interrupted
with this relay. Wire as shown.
“Existing”
AP DISC
Relay
19X2
A/P
DISC
To A/P
circuit
breaker
OR
Existing Wire
To A/P
Sonalert
Remove wires from KC19X2-B. The wires should be spliced together with a third wire
which will be connected to the EA100 pin 39. Connect EA100 pin 41 to KC19X2-B.
No connect on KAP100
After
A/P DISC IN
19X1 19X2
B
20 AWG
20 AWG
20 AWG wire may be spliced to a 22 AWG wire of no more than 4 inches in length at
the EA100 to accommodate the high density pin.
EA100
6
7
8
5
7
8
6
1
1
1
PWR REF
3
3
KFC autopilots with flight director will retain the KI255/256 for FD display.
4
Note 4 not applicable to this drawing
