TASK 24-35-00-810-802
R Failure of the DC NORM BUS 1 Switching Contactor (1PC1)
1. Possible Causes
_______________
- CNTOR-DC NORM BUS 1 SWITCHING (1PC1)
- wiring
- CB-ELEC/CNTOR/DC/BUS/TIE1
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 24-35-55-000-001 Removal of the Contactor (1PC1, 1PC2)
AMM 24-35-55-400-001 Installation of the Contactor (1PC1, 1PC2)
AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power
AMM 31-60-00-860-001 EIS Start Procedure
AMM 31-60-00-860-002 EIS Stop Procedure
ASM 24-35/01
ASM 24-35/02
AWM 24-35-02
3. Fault Confirmation
__________________
A. Job Set-up
(1) Aircraft Maintenance Configuration
(a) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(b) Do the EIS start procedure (Lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
B. Test
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
On the ECAM control panel: On the lower ECAM display unit:
- push the ELEC key to get the ELEC - the line between DC 1 and DC BAT
page. buses goes out of view
- the line between DC 2 and DC BAT buses comes into view
- the DC ESS bus is supplied by the ESS TR.
4. Fault Isolation
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A. If the test confirms the fault:
- do a check for 28VDC between pins B/3 and B/5 of the DC NORM BUS 1 switching contactor (1PC1).
(1) If there is 28VDC:
- replace the CNTOR-DC NORM BUS 1 SWITCHING (1PC1) (Ref. AMM TASK 24-35-55-000-001) and (Ref. AMM TASK 24-35-55-400-001).
(2) If there is no 28VDC:
- do a check of the status of the circuit breaker (9PC).
(a) If the circuit breaker (9PC) is closed:
- do a check and repair the wiring: . between the circuit breaker (9PC) and pin B/3 of the DC NORM BUS 1 switching contactor (1PC1) . then between pin B/5 of the contactor (1PC1) and the ground point or terminal block (Ref. ASM 24-35/02) (Ref. AWM 24-35-02).
(b) If the circuit breaker (9PC) is open:
- close it.
1 If the circuit breaker trips:
_
- do a check of the wiring for short to ground between the circuit breaker (9PC) and pin B/3 of the DC NORM BUS 1 switching contactor (1PC1) (Ref. ASM 24-35/01).
a If the fault continues:
_
- replace the CB-ELEC/CNTOR/DC/BUS/TIE1.
B. Do the test given in Para. 3. and make sure that the normal configuration comes into view.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞24-35-00∞∞∞∞∞∞∞∞∞∞Page 205
May 01/98 CES 5. Close-up
________
A. Put the aircraft back to its initial configuration.
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(2) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
DC GENERATION - BATTERIES - FAULT ISOLATION PROCEDURES
______________________________________________________
TASK 24-38-00-810-801
Failure of the Battery 1
1. Possible Causes
_______________
- BAT-1 (2PB1)
- BCL-1 (1PB1)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 24-38-00-710-001 Operational Test of the Battery Charge Limiter (BCL), (with the CFDS) AMM 24-38-34-000-001 Removal of the Battery Charge Limiter (BCL) (1PB1, 1PB2) AMM 24-38-34-400-001 Installation of the Battery Charge Limiter (BCL)
(1PB1, 1PB2)
AMM 24-38-51-000-001 Removal of the Batteries (2PB1, 2PB2)
AMM 24-38-51-400-001 Installation of the Batteries (2PB1, 2PB2)
3. Fault Confirmation 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 3(52)
