EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 210-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
Figure E12: EA100 to KFC250 (with KA141) 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
3
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
3
4
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
EA100
6
7
8
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
F
12
N
10VAC 400Hz
PITCH AC (H)
P2991
ROLL AC (H)
PWR REF
The existing autopilot disconnect circuit from the KA136 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. Wire as shown.
P2992
After
w
10
GYRO REF
KCP299 Flight
Computer
with KA141
with P/N 065-5016-XX
Adapter Board (for 3"
instruments)
Only KCP299 flight computers with adapter board 065-5016-XX may
use this drawing. Flight computers with 065-5015-XX adapter boards
not approved.
KFC250 autopilots that do not use a KA141 cannot use this drawing.
See appropriate wiring diagram in this manual.
KA141 Autopilot Monitor
4
GYRO REF
E
KI256
E
x
is
ti
n
g
W
ir
e
Existing Wire
Wire from KA141-4 to KI256-E is a ground reference from the KA141.
If removing the KI256, it is not necessary to ground this wire.
1
8
A
W
G
1
8
A
W
G
18 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.
5
6
9
10
10
9
8
Before
A/P DISC from KA136 to KCP299
Existing Wire
KA136 Trim Adapter
A/P DISC
L
P1362
A/P DISC IN
j
P2991 P2992
KCP299 Flight Computer
with KA141
with P/N 065-5016-XX Adapter
Board (for 3" instruments)
A/P DISC IN
Existing Wire
Existing Wire
j
KA136 Trim Adapter
A/P DISC
L
P1362
P2991 P2992
KCP299 Flight Computer
with KA141
with P/N 065-5016-XX Adapter
Board (for 3" instruments)
Remove existing wire from P2992 pin j and extend to EA100 pin 39. Run new
wire from P2992 pin j to EA100 pin 41.
7
9
9
1
1
KFC autopilots with flight director will retain the KI255/256 for FD display.
Note 4 not applicable to this drawing
