(2)
The battery warning system consists of a battery warning logic module, an INS warning relay, a ground safety relay and a ground crew call horn.
(3)
The ground crew call horn is activated: (1) when any one or more INS systems operates on battery power for approximately 30 seconds;
(2) if the equipment cooling airflow detector detects "no airflow"; or (3) if the ground crew call button (on overhead panel P5) is pressed.
(4)
The ground safety relay allows the ground crew call horn to be activated only if the airplane is on the ground.
NOTE: On AF 112-115, 151 plus ATLAS airplanes incorporating
____ SB 32-2141, the ground crew call horn will sound if the INS circuit breakers are opened but will not sound if power is removed from the airplane.
On AF 116-150, 152-199; LH 011-030, 051-070, 082-099;
AZ 221-299; MD 501-599; GN 601-699; AT 701-750; VM 751-799;
plus airplanes incorporating SB 34-2080,
incorporating SB 34-2080,
the warning signal bypasses the ground safety relay
and the ground crew call horn will sound if the INS is left
operating when power is removed from the airplane.
B. Battery Warning Logic Module
(1) The battery warning logic module is a time delay relay driver that provides voltage to energize the INS warning relay when the INS is on and has been operating on battery power for about 30 seconds.
EFFECTIVITY
AIRPLANES WITH DELCO INS CONFIG 1 02 A Page 40 Apr 25/8734-41-00
INS 3 MSU AT 701-799 VM 751-799
VM 751-799 AZ 221-299,
AZ 221-299 PLUS ATLAS AIRPLANES INCORPORATING SB 34-2080
INS Cooling and Battery Warning
Figure 14
EFFECTIVITY
CONFIG 1 AIRPLANES WITH DELCO INS
798Page 41/42
34-41-00
Apr 25/86
TRUE HDG TRUE HDG VALID NAV VALID ALERT TKE+DA TO/FROM DA TKE XTK DIGITAL DATA DIGITAL DATA VALID LEG SWITCH PLATFORM HDG
PLATFORM HDG VALID
INS NAV UNIT NO. 1
PLATFORM HDG PLATFORM HDG VALID DIGITAL DATA DIGITAL DATA VALID NAV VALID ALERT DA TO/FROM TKE XTK TKE+DA LEG SWITCH TRUE HDG VALID TRUE HDG
INS NAV UNIT NO. 2
PLATFORM HDG PLATFORM HDG VALID LEG SWITCH DIGITAL DATA VALID DIGITAL DATA TO/FROM XTK TKE DA TKE+DA ALERT TRUE HDG VALID TRUE HDG NAV VALID
INS NAV UNIT NO. 3
LEG SWITCH, XTK, TKE, DA, NAV VALID TO A/P-F/D ROLL COMPUTER-A
1
COMPASS COUPLER 1
3
CAPT ATT/COMP
STAB RELAY
LEG SWITCH, XTK, TKE, DA, NAV VALID TO A/P-F/D ROLL COMPUTER-B
2
COMPASS COUPLER 2
3
F/O ATT/COMP
STAB RELAY
LEG SWITCH, XTK, TKE, DA, NAV VALID TO A/P-F/D ROLL COMPUTER-C
INS NAV Data Simplified Switching Schematic Figure 15 (Sheet 1)
1
3
CAPT INS TRANSFER RELAY
CAPT ALT
NOR-MAL
F/O ALT
INS TRANSFER SW
2
3
F/O INS TRANSFER RELAY INSTR SW ACCESS BOX
INSTR SW ACCESS BOX DIGITAL DATA AND GND SPEED VALID
DA
DA VALID DIST VALID RAD
TRUE HDG VALID
G
G
NAV VALID
TO
CAPT 1 F/O 2 ANN MASTER DIM ANDALERTCAPT 3 TESTF/O 2 ANN
MODULE TO/FROM
CAPT 1
F/O 3 ANN
XTK
TRUE HDG
TKE+DA 28V DC ESS FLT INSINST BUS
CAPT
FLT INST SW
CAPT RAD/INS RELAY - INS
RELAY
P7 ELEX CB PNL CAPT SELECTED RADIO/NAV DATA
RAD F/O SELECTED RADIO/NAV DATA
INS
F/O RAD/INS RELAY
MILES GND SPEED
I
N
S
1 G
S
A
L
E
R
T
CAPT HSI
MILES GND SPEED
I
N
S
2
A
L
E
R
T
F/O HSI
(SAME SIGNALS AS CAPT HSI)
EFFECTIVITYATLAS ALL EXCEPT CONFIG 1 AT 701-750 799 Page 43/44IB 406-499 Oct 25/80
34-41-00
2
TRUE HDG
DIGITAL DATA AND DIGITAL DATA VALID
TRUE HDG VALID
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本文鏈接地址：747飛機維護手冊AMM CHAPTER 34 - NAVIGATION 第34章導航2(96)
