(3)
Indicating
(a) FAULT Warnings (Ref. Fig. 011) FAULT warnings are generated via discrete signals.
1_ There is an INOP signal if any of the following conditions
occurs:
- an electrical failure (loss of power, connector not
connected)
- a failure in a detector
- a failure in a detection circuit
- the detection of a single fire detection loop for a time
greater than 16 sec while the other loop is in normal
condition.
2 The FAULT warning signals thus generated are transmitted to
_ the cockpit, at the following locations:
-MASTER CAUT light
-Upper ECAM display unit: ENG 1 (2) LOOP A (B) FAULT or ENG 1
(2) DET FAULT.
The Single Chime (SC) sounds.
NOTE : In addition, the failure message in plain language is
____ transmitted continuously via the ARINC 429 bus to the CFDIU.
1EFF : ALL 1 26-12-00Page 22 1 1 Feb 01/99R 1 1 1CES 1
FAULT Circuit - Schematic
Figure 011
1EFF : ALL 1 26-12-00 Page 23
1 1 Feb 01/98
1 1
1CES 1
(b) FIRE Warnings (Ref. Fig. 012)
FIRE warnings are generated via discrete signals.
1_ There is a FIRE warning signal if any of the following conditions occurs:
- FIRE A and FIRE B
- FIRE A and FAULT B
- FAULT A and FIRE B
- FAULT A and FAULT B in less than 5 seconds.
2_ The FIRE warning signals thus generated are transmitted to the cockpit, at the following locations:
- ENG/APU FIRE panel (1WD): ENG/FIRE pushbutton switch
- ENG panel (115VU): ENG/FIRE/FAULT annunciator
- MASTER WARN light
- Upper ECAM display unit: ENG 1 (2) FIRE and fire extinguishing procedure
- Lower ECAM display unit: engine page.
The Continuous Repetitive Chime (CRC) sounds.
8. BITE Test_________
R R R R R R R R A. Operational Test The operational test enables the pilot to monitor and activate the fire protection system. This test is part of the daily check-list and is available each time it is needed. The operational test can be performed on the ground or in flight.
R R R From the ENG/APU FIRE panel, a TEST pushbutton switch (one per engine) checks the condition of the:
FIRE Warning Circuit - Schematic
Figure 012
1EFF : ALL 1 26-12-00 Page 25
1 1 Feb 01/98
1 1
1CES 1
R - fire detectors (Loops A and B), Fire Detection Unit (FDU), indications,
R warnings and associated wirings (loop test)
R
R - percussion cartridge filaments of the fire extinguisher bottles and
R associated wiring (squib test).
R
R When you press the TEST pushbutton switch, the fire warning indications
R are triggered, the fire detection system is operational.
R
R For the engine 1 (same for the engine 2):
R
R - on the ENG/APU FIRE panel (1WD):
R . the ENG 1 FIRE legend comes on,
R . the SQUIB and DISCH legends come on,
R - on the ENG panel (115VU):
R . the FIRE legend comes on,
R - on the panels 130VU and 131VU:
R . the MASTER WARN lights flash,
R - on the upper ECAM display unit:
R . the red ENG 1 FIRE indication comes into view,
R - on the lower ECAM display unit:
R . the ENGINE page comes into view,
R - the Continuous Repetitive Chime (CRC) sounds.
R
R If the failure is detected during the TEST sequence, a FAULT message
R comes into view in the lower ECAM DU (For example ENG 1 (2) LOOP A(B)
R FAULT).
R
R NOTE : The TEST pushbutton switch must be held while you do the test.____
R **ON A/C 001-049, 051-099, 101-105, 151-154, 201-207,
B. Built-In Test Equipment (BITE)
(1) Description
The function of the BITE is to:
-monitor the condition of the FDU and the related inputs,
-analyze and confirm the faults and,
-store them in the Non-Volatile Memory (NVM).
The FDU is a type 2 system. The FDU BITE functions are as follows:
-acquisition of discrete input signals,
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：A320飞机维护手册 AMM FIRE PROTECTION 防火1(25)
