W DOC AIRBUS | AMM A320F

DOOR MONITORING AND FLIGHT LOCK FUNCTION - DESCRIPTION AND OPERATION

** ON A/C NOT FOR ALL
1. General
The door warning system tells the crew if the doors are locked or unlocked.
Proximity switches with a built-in electronic system are used on the passenger/crew doors, the avionics compartment doors and the emergency exit doors.
But on the cargo compartment doors, because of environmental conditions (pollution, no pressurization), proximity switches with a different electronic system are used. These switches send signals to LGCIU1.
Proximity switches with a built-in electronic system are also used on:
  • The optional door of the bulk cargo compartment
  • The door of the optional entrance stairs.
The door monitoring and flight lock function tells the crew if the doors are locked or unlocked.
Proximity switches with a built-in electronic system are used on:
  • The passenger/crew doors
  • The avionics compartment doors
  • The emergency exit doors
  • The overwing emergency-exit doors
  • The bulk cargo-compartment door (optional)
  • The entrance stairs door (optional).
On the forward and aft-cargo compartment doors, because of environmental conditions (temperature, no pressurization), proximity sensors with a different electronic system are used. These sensors send signals to LGCIU1.
** ON A/C NOT FOR ALL
2. Component Location
A. Passenger/Crew Doors
F Warning System of the Passenger/Crew Doors
FIN FUNCTIONAL
DESIGNATION		 PANEL ZONE ACCESS
DOOR		 ATA REF
** ON A/C ALL
4WN1 PROX SW-HANDLE, L FWD ESC SLIDE 831 52-73-11
4WN2 PROX SW-HANDLE, R FWD ESC SLIDE 841 52-73-11
7WN1 PROX SW-HANDLE, L AFT ESC SLIDE 832 52-73-11
7WN2 PROX SW-HANDLE, R AFT ESC SLIDE 842 52-73-11
11WV1 PROX SW-HOOK, L FWD PAX/CREW DOOR 221 52-71-11
11WV2 PROX SW-HOOK, R FWD PAX/CREW DOOR 222 52-71-11
13WV1 PROX SW-HANDLE, L FWD PAX/CREW DOOR 831 52-71-11
13WV2 PROX SW-HANDLE, R FWD PAX/CREW DOOR 841 52-71-11
15WV1 PROX SW-HOOK, L AFT PAX/CREW DOOR 261 52-71-11
15WV2 PROX SW-HOOK, R AFT PAX/CREW DOOR 262 52-71-11
17WV1 PROX SW-HANDLE, L AFT PAX/CREW DOOR 832 52-71-11
17WV2 PROX SW-HANDLE, R AFT PAX/CREW DOOR 842 52-71-11
1516WM TARGET-HANDLE PROX SW, L FWD ESC SLIDE 831 26-10-00
1517WM TARGET-HANDLE PROX SW, R FWD ESC SLIDE 841 26-10-00
1518WM TARGET-HANDLE PROX SW, L AFT ESC SLIDE 832 26-10-00
1519WM TARGET-HANDLE PROX SW, R AFT ESC SLIDE 842 26-10-00
1526WM TARGET-HOOK PROX SW, L FWD PAX/CREW DOOR 221 26-10-00
1527WM TARGET-HOOK PROX SW, R FWD PAX/CREW DOOR 222 26-10-00
1512WM TARGET-HANDLE PROX SW, L FWD PAX/CREW DOOR 831 26-10-00
1513WM TARGET-HANDLE PROX SW, R FWD PAX/CREW DOOR 841 26-10-00
1528WM TARGET-HOOK PROX SW, L AFT PAX/CREW DOOR 261 26-10-00
1529WM TARGET-HOOK PROX SW, R AFT PAX/CREW DOOR 262 26-10-00
1514WM TARGET-HANDLE PROX SW, L AFT PAX/CREW DOOR 832 26-10-00
1515WM TARGET-HANDLE PROX SW, R AFT PAX/CREW DOOR 842 26-10-00
B. Emergency Exit Doors
F Warning System of the Emergency Exit Doors ** ON A/C NOT FOR ALL
F Warning System of the Emergency Exit Doors ** ON A/C NOT FOR ALL
F Warning System of the Emergency Exit Doors ** ON A/C NOT FOR ALL
F Warning System of the Emergency Exit Doors ** ON A/C NOT FOR ALL
FIN FUNCTIONAL
DESIGNATION		 PANEL ZONE ACCESS
DOOR		 ATA REF
** ON A/C NOT FOR ALL
5WN1 PROX SW-HANDLE, L FWD EMER EXIT ESC SLIDE 833 52-73-11
5WN2 PROX SW-HANDLE, R FWD EMER EXIT ESC SLIDE 843 52-73-11
** ON A/C NOT FOR ALL
6WN1 PROX SW-HANDLE, L AFT EMER EXIT ESC SLIDE 834 52-73-11
6WN2 PROX SW-HANDLE, R AFT EMER EXIT ESC SLIDE 844 52-73-11
** ON A/C NOT FOR ALL
6WN1 PROX SW-HANDLE, L AFT EMER EXIT ESC SLIDE 835 52-73-11
6WN2 PROX SW-HANDLE, R AFT EMER EXIT ESC SLIDE 845 52-73-11
** ON A/C NOT FOR ALL
19WV1 PROX SW-HANDLE FLAP, L FWD EMER EXIT 241 52-71-13
19WV2 PROX SW-HANDLE FLAP, R FWD EMER EXIT 242 52-71-13
** ON A/C NOT FOR ALL
21WV1 PROX SW-HANDLE FLAP, L AFT EMER EXIT 241 52-71-13
21WV2 PROX SW-HANDLE FLAP, R AFT EMER EXIT 242 52-71-13
** ON A/C NOT FOR ALL
21WV1 PROX SW-HANDLE FLAP, L AFT EMER EXIT 835 52-71-13
21WV2 PROX SW-HANDLE FLAP, R AFT EMER EXIT 845 52-71-13
** ON A/C NOT FOR ALL
59WV1 PROX SW-HOOK, L FWD EMER EXIT 231 52-71-13
59WV2 PROX SW-HOOK, R FWD EMER EXIT 232 52-71-13
** ON A/C NOT FOR ALL
61WV1 PROX SW-HOOK, L AFT EMER EXIT 251 52-71-13
61WV2 PROX SW-HOOK, R AFT EMER EXIT 252 52-71-13
** ON A/C ALL
1557WM TARGET-HANDLE PROX SW, L AFT EMER EXIT ESC SLIDE 242 26-10-00
1558WM TARGET-HANDLE PROX SW, R AFT EMER EXIT ESC SLIDE 241 26-10-00
1553WM TARGET-HANDLE FLAP PROX SW, L AFT EMER EXIT 844 26-10-00
1554WM TARGET-HANDLE FLAP PROX SW, R AFT EMER EXIT 834 26-10-00
** ON A/C NOT FOR ALL
1555WM TARGET-HANDLE PROX SW, L FWD EMER EXIT ESC SLIDE 242 26-10-00
1556WM TARGET-HANDLE PROX SW, R FWD EMER EXIT ESC SLIDE 241 26-10-00
1551WM TARGET-HANDLE FLAP PROX SW, L FWD EMER EXIT 843 26-10-00
1552WM TARGET-HANDLE FLAP PROX SW, R FWD EMER EXIT 833 26-10-00
C. Avionics Compartment Doors
F Warning System of the Avionics Compartment Doors
FIN FUNCTIONAL
DESIGNATION		 PANEL ZONE ACCESS
DOOR		 ATA REF
** ON A/C ALL
23WV PROX SW-FRAME, L AVIONICS COMPT DOOR 125 52-71-14
36WV PROX SW-FRAME, FWD AVIONICS COMPT DOOR 120 52-71-14
38WV PROX SW-FRAME, R AVIONICS COMPT DOOR 126 52-71-14
40WV PROX SW-FRAME, AFT AVIONICS COMPT DOOR 128 52-71-14
1522WM TARGET-FRAME PROX SW, L AVIONICS COMPT DOOR 125 26-10-00
1521WM TARGET-FRAME PROX SW, FWD AVIONICS COMPT DOOR 120 26-10-00
1523WM TARGET-FRAME PROX SW, R AVIONICS COMPT DOOR 126 26-10-00
1525WM TARGET-FRAME PROX SW, AFT AVIONICS COMPT DOOR 128 26-10-00
D. Cargo Compartment Doors
F Warning System of the Cargo Compartment Doors
F Warning System of the Cargo Compartment Doors
F Warning System of the Cargo Compartment Doors ** ON A/C NOT FOR ALL
F Warning System of the Cargo Compartment Doors ** ON A/C NOT FOR ALL
FIN FUNCTIONAL
DESIGNATION		 PANEL ZONE ACCESS
DOOR		 ATA REF
** ON A/C ALL
28WV PROX SW-HANDLE, FWD CARGO COMPT DOOR 825 52-71-12
30WV PROX SW-FRAME, FWD CARGO COMPT DOOR 132 52-71-12
32WV PROX SW-FRAME, AFT CARGO COMPT DOOR 152 52-71-12
34WV PROX SW-HANDLE, AFT CARGO COMPT DOOR 826 52-71-12
E. Bulk Cargo-Compartment Door
F Proximity Switches of the Bulk Cargo-Compartment Door ** ON A/C NOT FOR ALL
FIN FUNCTIONAL
DESIGNATION		 PANEL ZONE ACCESS
DOOR		 ATA REF
** ON A/C NOT FOR ALL
50WV PROX SW-FRAME, BULK CARGO COMPT DOOR 162 52-71-12
1559WM TARGET-FRAME PROX SW, BULK CARGO COMPT DOOR 827 26-10-00
F. Overwing Emergency-Exit Doors
F Warning System of the Overwing Emergency-Exit Doors ** ON A/C NOT FOR ALL
FIN FUNCTIONAL
DESIGNATION		 PANEL ZONE ACCESS
DOOR		 ATA REF
** ON A/C NOT FOR ALL
31WN1 PROX SW-LOCK 1, L FWD OVERWING DOOR 834 52-71-00
31WN2 PROX SW-LOCK 1, R FWD OVERWING DOOR 844 52-71-00
31WN3 PROX SW-LOCK 1, L AFT OVERWING DOOR 834 52-71-00
31WN4 PROX SW-LOCK 1, R AFT OVERWING DOOR 844 52-71-00
32WN1 PROX SW-LOCK 2, L FWD OVERWING DOOR 834 52-71-00
32WN2 PROX SW-LOCK 2, R FWD OVERWING DOOR 844 52-71-00
32WN3 PROX SW-LOCK 2, L AFT OVERWING DOOR 844 52-71-00
32WN4 PROX SW-LOCK 2, R AFT OVERWING DOOR 844 52-71-00
33WN1 PROX SW-HANDLE FLAP, L FWD OVERWING DOOR 834 52-71-00
33WN2 PROX SW-HANDLE FLAP, R FWD OVERWING DOOR 844 52-71-00
33WN3 PROX SW-HANDLE FLAP, L AFT OVERWING DOOR 834 52-71-00
33WN4 PROX SW-HANDLE FLAP, R AFT OVERWING DOOR 844 52-71-00
1531WM1 TARGET-LOCK 1, L FWD OVERWING DOOR 834 52-22-00
1531WM2 TARGET-LOCK 1, R FWD OVERWING DOOR 844 52-22-00
1531WM3 TARGET-LOCK 1, L AFT OVERWING DOOR 834 52-22-00
1531WM4 TARGET-LOCK 1, R AFT OVERWING DOOR 844 52-22-00
1532WM1 TARGET-LOCK 2, L FWD OVERWING DOOR 834 52-22-00
1532WM2 TARGET-LOCK 2, R FWD OVERWING DOOR 844 52-22-00
1532WM3 TARGET-LOCK 2, L AFT OVERWING DOOR 834 52-22-00
1532WM4 TARGET-LOCK 2, R AFT OVERWING DOOR 844 52-22-00
1533WM1 TARGET-HANDLE FLAP, L FWD OVERWING DOOR 834 52-22-00
1533WM2 TARGET-HANDLE FLAP, R FWD OVERWING DOOR 844 52-22-00
1533WM3 TARGET-HANDLE FLAP, L AFT OVERWING DOOR 834 52-22-00
1533WM4 TARGET-HANDLE FLAP, R AFT OVERWING DOOR 844 52-22-00
** ON A/C NOT FOR ALL
3. System Description
F Door Position Detection - Schematic ** ON A/C NOT FOR ALL
F Door Position Detection - Schematic ** ON A/C NOT FOR ALL
F Door Position Detection - Schematic ** ON A/C NOT FOR ALL
F Door Position Detection ** ON A/C NOT FOR ALL
F Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL
F Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL
F Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL
F Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL
All the data related to the passenger/crew doors, the emergency exit doors, the avionics and cargo compartment doors and the escape slide arming are sent to the ECAM system through proximity switches. LGCIU1 processes the data related to the cargo compartment doors and sends these data to the FWC with the ARINC 429 busbar.
For the passenger/crew doors, the emergency exit doors and the avionics compartment doors, the discrete data are sent to the System Data Acquisition Concentrators (SDAC). When a passenger/crew door, an emergency exit door or an avionics compartment door is open, the target is separated from the proximity switch. This blocks the output transistor of the proximity switch which sends logic 1 to the SDAC. The passenger/crew doors are shown closed if the locking hook is in the correct position and the locking shaft correctly overcentered (the two data are in series). The cargo compartment doors are shown closed if the locking hook and the handle are in the correct position (logic AND of the two data performed by the FWC). A single detection system is used for the avionics compartment doors and the emergency exit doors (the locking hook for the avionics compartment doors and the flap for emergency exit doors).
The position of the escape slides is shown as follows:
  • Passenger/crew doors: output transistor in the on status (the target near the proximity switch is related to the armed status of the slide).
  • Emergency exit doors: output transistor in the on status (the target near the proximity switch is related to the disarmed status of the slide).
All the data related to the passenger/crew doors, the emergency exit doors, the avionics and cargo compartment doors and the escape slide arming are sent to the ECAM system through proximity switches. LGCIU1 processes the data related to the cargo compartment doors and sends these data to the FWC with the ARINC 429 busbar.
For the passenger/crew doors, the emergency exit doors and the avionics compartment doors, the discrete data are sent to the System Data Acquisition Concentrators (SDAC). When a passenger/crew door, an emergency exit door or an avionics compartment door is open, the target is separated from the proximity switch. This blocks the output transistor of the proximity switch which sends logic 1 to the SDAC. The passenger/crew doors are shown closed if the locking hook is in the correct position and the locking shaft correctly overcentered (the two data are in series). The cargo compartment doors are shown closed if the locking hook and the handle are in the correct position (logic AND of the two data performed by the FWC). A single detection system is used for the avionics compartment doors and the emergency exit doors (the locking hook for the avionics compartment doors and the flap for emergency exit doors).
The position of the escape slides is shown as follows:
  • Passenger/crew doors: output transistor in the on status (the target near the proximity switch is related to the armed status of the slide).
  • Emergency exit doors: output transistor in the on status (the target near the proximity switch is related to the disarmed status of the slide).
The proximity switches send to the ECAM system all the closed and locked conditions related to the components that follow:
  • The passenger/crew doors
  • The emergency exit doors
  • The overwing emergency-exit doors
  • The avionics and cargo compartment doors, and
  • The escape slides arming.
LGCIU1 sends all the closed and locked conditions of the cargo comparment doors and sends these data to the FWC with the ARINC 429 bus bar.
The proximity switches send the closed and locked conditions related to the passenger/crew doors, the emergency exit doors, the overwing emergency-exit doors and the avionics compartment doors to the SDACs. When one of these doors is unlocked or open, the target is separated from the sensor. This blocks the output transistor of the proximity switch which sends an electric open circuit to the SDAC. The passenger/crew doors, the emergency exit doors and the overwing emergency-exit doors are shown as closed if the locking hook is in the correct position and the locking shaft is correctly aligned (the two conditions are in series). The cargo compartment doors are shown as closed if the locking hook and the handle are in the correct position (the FWC uses the AND logic for the two conditions). The locking hook is the only detection system used for the avionics compartment doors.
The position of the escape slides is shown as follows:
  • Passenger/crew doors: output transistor in the on position (target near the proximity switch is related to the armed position of the slide).
  • Emergency exit doors and overwing emergency-exit doors: output transistor in the on position (target near the proximity switch is related to the disarmed position of the slide).
** ON A/C NOT FOR ALL
4. Power Supply
A. Proximity Switches
(1) The proximity switches detect:
  • The position of the control handle of the passenger/crew doors
  • The position of the flap of the emergency exit doors
  • The armed or disarmed state of the escape slides of the passenger/crew doors and emergency exit doors
  • The position of the avionics compartment doors and the cargo compartment doors.
(2) For proximity switches 4WN1, 4WN2, 6WN1, 6WN2, 7WN1, 7WN2, 13WV1, 13WV2, 17WV1, 17WV2, 21WV1 and 21WV2:
The Emergency Power Supply Units (EPSU) supply these proximity switches with 6VDC.
Battery busbar 301PP or hot busbar 702PP directly supplies the proximity switches with 28VDC:
  • When the EPSU cannot supply them with 6VDC or
  • In the conditions that follow:
Aircraft DC Power
Aircraft AC Power
EMER exit door LT SW 4WL
FAP EMER Button 120RH
EXIT Signs Switch 190RH
EPSU Pin
OFF
OFF
OFF
ON/OFF
ON/OFF
NO
ON
ON/OFF
OFF
OFF
OFF
NO
(3) For proximity switches 11WV1, 11WV2, 15WV1 and 15WV2:
Busbar 101PP supplies the proximity switches which detect the position of the locking hook of the passenger/crew doors.
(4) For proximity switches 23WV, 36WV, 38WV and 40WV:
Busbar 202PP supplies the proximity switches which detect the position of the avionics compartment doors.
(5) The proximity switches detect:
  • The position of the control handle of the passenger/crew doors
  • The position of the flap of the emergency exit doors
  • The armed or disarmed state of the escape slides of the passenger/crew doors and emergency exit doors
  • The position of the avionics compartment doors, the cargo compartment doors and the bulk cargo compartment door.
(6) For proximity switches 4WN1, 4WN2, 5WN1, 5WN2, 6WN1, 6WN2, 7WN1, 7WN2, 13WV1, 13WV2, 17WV1, 17WV2, 19WV1, 19WV2, 21WV1 and 21WV2:
The Emergency Power Supply Units (EPSU) supply these proximity switches with 6VDC.
Battery busbar 301PP or hot busbar 702PP directly supplies the proximity switches with 28VDC:
  • When the EPSU cannot supply them with 6VDC or
  • In the conditions that follow:
Aircraft DC Power
Aircraft AC Power
EMER exit door LT SW 4WL
FAP EMER Button 120RH
EXIT Signs Switch 190RH
EPSU Pin
OFF
OFF
OFF
ON/OFF
ON/OFF
NO
ON
ON/OFF
OFF
OFF
OFF
NO
(7) For proximity switches 11WV1, 11WV2, 15WV1 and 15WV2:
Busbar 101PP supplies the proximity switches which detect the position of the locking hook of the passenger/crew doors.
(8) For proximity switches 23WV, 36WV, 38WV, 40WV and 50WV:
Busbar 202PP supplies the proximity switches which detect the position of the avionics compartment doors and the bulk cargo compartment door.
(9) The proximity switches detect:
  • The position of the control handle of the passenger/crew doors and emergency exit doors
  • The armed or disarmed state of the escape slides of the passenger/crew doors and emergency exit doors
  • The position of the avionics compartment doors, the cargo compartment doors and the bulk cargo compartment door.
(10) For proximity switches 4WN1, 4WN2, 5WN1, 5WN2, 6WN1, 6WN2, 7WN1, 7WN2, 13WV1, 13WV2, 17WV1, 17WV2, 19WV1, 19WV2, 21WV1 and 21WV2:
The Emergency Power Supply Units (EPSU) supply these proximity switches with 6VDC.
Battery busbar 301PP or hot busbar 702PP will directly supply the proximity switches with 28VDC:
  • When the EPSU cannot supply them with 6VDC or
  • In the conditions that follow:
Aircraft DC Power
Aircraft AC Power
EMER exit door LT SW 4WL
FAP EMER Button 120RH
EXIT Signs Switch 190RH
EPSU Pin
OFF
OFF
OFF
ON/OFF
ON/OFF
NO
ON
ON/OFF
OFF
OFF
OFF
NO
(11) For proximity switches 11WV1, 11WV2, 15WV1, 15WV2, 59WV1, 59WV2, 61WV1 and 61WV2:
Busbar 101PP supplies the proximity switches which detect the position of the locking hook of the passenger/crew doors and the emergency exit doors.
(12) For proximity switches 23WV, 36WV, 38WV, 40WV and 50WV:
Busbar 202PP supplies the proximity switches which detect the position of the avionics compartment doors and the bulk cargo compartment door.
(13) The proximity switches detect:
  • The position of the control handle of the passenger/crew doors, the emergency exits and the overwing emergency-exit doors
  • The armed or disarmed position of the escape slides of the passenger/crew doors and emergency exits
  • The position of the avionics compartment doors, the cargo compartment doors and the bulk cargo-compartment door.
(14) For proximity switches 4WN1, 4WN2, 5WN1, 5WN2, 6WN1, 6WN2, 7WN1, 7WN2, 13WV1, 13WV2, 17WV1, 17WV2, 19WV1, 19WV2, 21WV1 and 21WV2:
The Emergency Power Supply Units (EPSU) supply these proximity switches with 6VDC.
Battery busbar 301PP or hot busbar 702PP directly supplies the proximity switches with 28VDC:
  • When the EPSU cannot supply them with 6VDC, or
  • In the conditions that follow:
Aircraft DC Power
Aircraft AC Power
EMER exit door LT SW 4WL
FAP EMER Button 120RH
EXIT Signs Switch 190RH
EPSU Pin
OFF
OFF
OFF
ON/OFF
ON/OFF
NO
ON
ON/OFF
OFF
OFF
OFF
NO
(15) For proximity switches 11WV1, 11WV2, 15WV1, 15WV2, 59WV1, 59WV2, 61WV1 and 61WV2:
Busbar 101PP supplies the proximity switches which detect the position of the locking hook of the passenger/crew doors and the emergency exit doors.
(16) For proximity switches 23WV, 36WV, 38WV, 40WV and 50WV:
Busbar 202PP supplies the proximity switches which detect the position of the avionics compartment doors and the bulk cargo-compartment door.
(17) For 31WN1, 31WN2, 31WN3, 31WN4, 32WN1, 32WN2, 32WN3, 32WN4, 33WN1, 33WN2, 33WN3 and 33WN4:
The Emergency Power Supply Units (EPSU) supply the proximity switches.
B. Flight Lock Actuator (FLA)
(1) The FLAs have two different electric circuits for FLA control and for FLA status monitoring circuits. Busbar 103PP supplies power to the FLA control circuits.
** ON A/C NOT FOR ALL
5. Component Description
F Proximity Switches With a Built-In Electronic System
A. Proximity Switches with a Built-in Electronic System
The proximity switches with a built-in electronic system are: [6WN1] [6WN2] [7WN1] [7WN2] [4WN1] [4WN2] [21WV1] [21WV2] [17WV1] [17WV2] [15WV1] [15WV2] [11WV1] [11WV2] [13WV1] [13WV2] [40WV] [38WV] [36WV] [23WV] .
The proximity switches with a built-in electronic system are: [6WN1] [6WN2] [5WN1] [5WN2] [7WN1] [7WN2] [4WN1] [4WN2] [21WV1] [21WV2] [19WV1] [19WV2] [17WV1] [17WV2] [15WV1] [15WV2] [11WV1] [11WV2] [13WV1] [13WV2] [40WV] [38WV] [36WV] [23WV] [50WV] .
The proximity switches with a built-in electronic system are: [6WN1] [6WN2] [5WN1] [5WN2] [7WN1] [7WN2] [4WN1] [4WN2] [21WV1] [21WV2] [19WV1] [19WV2] [17WV1] [17WV2] [15WV1] [15WV2] [11WV1] [11WV2] [13WV1] [13WV2] [40WV] [38WV] [36WV] [23WV] [50WV] [59WV1] [59WV2] [61WV1] [61WV2] .
The proximity switches with a built-in electronic system are: [4WN1] [4WN2] [5WN1] [5WN2] [6WN1] [6WN2] [7WN1] [7WN2] [31WN1] [31WN2] [31WN3] [31WN4] [32WN1] [32WN2] [32WN3] [32WN4] [33WN1] [33WN2] [33WN3] [33WN4] [11WV1] [11WV2] [13WV1] [13WV2] [15WV1] [15WV2] [17WV1] [17WV2] [19WV1] [19WV2] [21WV1] [21WV2] [23WV] [36WV] [38WV] [40WV] [50WV] [59WV1] [59WV2] [61WV1] [61WV2] .
(1) These proximity switches transmit:
  • The position of the passenger/crew doors, the emergency exit doors and the avionics compartment doors
  • The status of the escape slide (armed or disarmed).
(2) These proximity switches have two different positions:
  • The ON position when the target is near the proximity switch.
  • The OFF position when the target is away from the proximity switch.
One of these positions transmits the position of a door or the status of an escape slide to the ECAM system and to the SLIDE ARMED indicator lights (see 52-73-00).
The other position transmits the position of a door or the status of an escape slide to the emergency power supply units (WL circuit) to control the lighting of the escape slides.
(3) They can be supplied with 5.4 to 32VDC and their consumption is less than 7mA. They have their own electronic system, necessary to process the signals.
(4) These proximity switches transmit:
  • The position of the passenger/crew doors, emergency exit doors, overwing emergency-exit doors, bulk cargo-compartment doors and avionics compartment doors
  • The condition of the escape slide (armed or disarmed).
(5) They have two different positions:
  • The ON position when the target is near the proximity switch
  • The OFF position when the target is away from the proximity switch.
One of these positions transmits the position of a door or the condition of an escape slide to the ECAM system and to the SLIDE ARMED indicator lights (see 52-73-00).
The other output transmits the position of a door or the condition of an escape slide to the EPSU (WL circuit) to control the lighting of the escape slides.
(6) You can supply them with 5.4 to 32VDC and their energy consumption is less than 7mA. They have their electronic system, necessary to send the signals.
B. Proximity Switches with Different Electronic System
The proximity switches with a different electronic system are: [32WV] [34WV] [28WV] [30WV] .
  • They transmit the position of the cargo compartment doors.
  • When the target is near the proximity switch, the phase changes between the supply current and the voltage of the proximity switch coil. LGCIU1 measures this variation and sends the position of the target to the FWCs with the ARINC 429 busbar.
    Document ABS0121 gives these proximity switches.
C. FLA
F FLA ** ON A/C NOT FOR ALL
One electrical FLA is installed on each overwing emergency-exit door. The function of the FLA is to lock the door handle movement in non-pressurized or low-pressurized flight phases.
The FLA engages when 28VDC is supplied. It automatically disengages when 28VDC is not supplied.
FLA test panel 72VU is installed in the avionics compartment for the maintenance and troubleshooting tasks.
** ON A/C NOT FOR ALL
6. Operation
F Block Diagram of the ECAM system ** ON A/C NOT FOR ALL
F Block Diagram of the ECAM System ** ON A/C NOT FOR ALL
F Block Diagram of the ECAM System ** ON A/C NOT FOR ALL
F Block Diagram of the ECAM System ** ON A/C NOT FOR ALL
A. Door Indications on the Display Units (DU) of the ECAM System
(1) Indication without warning
(a) During flight phases 1 and 10, the "DOOR" page comes automatically into view on the lower ECAM DU.
If a door is closed, its symbol is green.
If a door is open, its symbol and the related message are amber.
When the escape slides are disarmed, no message comes into view. When they are armed, the "SLIDE" message comes into view in white.
No data is shown on the upper DU.
(b) To get access to the "DOOR" page in flight, the pilot pushes the DOOR pushbutton switch on the ECAM control panel.
To stop the door warning, the pilot pushes the CLR pushbutton switch.
(2) Indication with warning
(a) During flight phases 2, 3, 6 and 9:
If there is a warning, the "DOOR" page immediately comes into view on the lower ECAM DU. The door symbol and its related message are shown in amber.
On the upper ECAM DU, the data related to the door comes into view in amber. At the same time, a single chime operates and the MASTER CAUT lights come on.
(b) During flight phases 4, 5, 7 and 8, no data is shown.
If during next flight phases 6, 9, and 10, the warning conditions stay shown:
  • The warning comes into view on the upper DU of the ECAM system.
  • At the same time, a single chime operates.
  • The MASTER CAUT lights come on.
[Rev.10 from 2021] 2026.04.01 05:36:25 UTC
"Aviabrain" 2025