B. 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 (Upper ECAM DU and lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
C. Test
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the ECAM control panel: On the upper ECAM DU:
- push the ELEC key. - the DC BUS TIE and ELEC DC ESS BUS FAULT warnings come into view.
2. In the AC power center 123VU: If, on the ELEC page:
- open the circuit breaker 2PU1. - the line between the AC ESS bus and the ESS TR is green,
- the ESS TR voltage is 28VDC.
Do the trouble shooting given in Para.
4.B.
If, on the ELEC page:
- the line between the AC ESS bus and the ESS TR is green,
- the ESS TR voltage is OVDC.
Do the trouble shooting given in Para.
4.C.
If, on the ELEC page:
- the line between the AC ESS bus and the ESS TR does not appear,
- the ESS TR voltage is OVDC.
Do the trouble shooting given in Para.
4.D.
「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 ∞∞24-60-00∞∞∞∞∞∞∞∞∞∞Page 233
Aug 01/00R
CES
4. Fault Isolation
_______________
R A. If the test confirms the fault:
R - replace the CNTOR-ESS TR (3PE) (Ref. AMM TASK 24-34-55-000-001) and
R (Ref. AMM TASK 24-34-55-400-001).
R (1) If the fault continues:
R - do a check of the status of the circuit breaker (5PE).
R (a) If the circuit breaker is closed:
R - do a check and repair the wiring between:
R . the 28VDC output of the ESS TR (1PE) and the pin A/F of the R contactor (3PE)
R . the pins A/G and B/3 of the ESS TR contactor (3PE)
R . the pin B/5 of the ESS TR contactor (3PE) and the ground R (Ref. ASM 24-34/01).
R (b) If the circuit breaker is open: R - close it.
R 1_ If it trips:
R - do a check of the wiring for a short to ground between the
R circuit breaker (5PE) and the pin B/3 of the contactor (3PE)
R (Ref. ASM 24-34/01).
R a_ If the wiring is not correct:
R - repair it.
R b_ If the wiring is correct:
R - replace the C/B-ESS TR CNTOR CTL (5PE).
B. If the test confirms the fault:
- replace the TR-ESS (1PE) (Ref. AMM TASK 24-34-51-000-001) and (Ref. AMM TASK 24-34-51-400-001).
(1) If the fault continues:
- do a check of the status of the circuit breaker (4PE).
(a) If the circuit breaker is closed:
- do a check and repair the wiring between the pins L1, L2, L3 of the AC ESS BUS contactor (15XE) and the pins A/A, A/B, A/C of the ESS TR (1PE) (Ref. ASM 24-34/01).
(b) If the circuit breaker is open:
- close it.
1 If it trips:
_
- do a check of the wiring for short to ground between the pins A2, B2, C2 of the circuit breaker (4PE) and the pins A/A, A/B, A/C of the ESS TR (1PE) (Ref. ASM 24-34/01).
「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 ∞∞24-60-00∞∞∞∞∞∞∞∞∞∞Page 234
Aug 01/02 CES a If the wiring is not correct:
_ - repair it.
b If the wiring is correct:
_ - replace the C/B-ESS TR SPLY (4PE).
C. If the test confirms the fault:
- replace the CNTOR-AC ESS BUS SWITCHING (15XE) (Ref. AMM TASK 24-24-55-000-002) and (Ref. AMM TASK 24-24-55-400-002).
(1) If the fault continues:
- do a check of the status of the circuit breaker (15PC)
(a) If the circuit breaker is closed:
- do a check and repair the wiring between respectively: . the pin K1 of the contactor (15XE) and the pins A/B and B/B of the contactor (3XC)
* through the contactor (4PC) and the relay (17PC)
* through the contactors (5PU1) and (5PU2)
. the pin A/D of the contactor (3XC) and the pin B/K of the
contactor (15XE), through the timer (33XE)
. the pin B/D of the contactor (3XC) and the first branch point
. the pin B/L of the contactor (15XE) and the ground through
the timer (33XE) (Ref. ASM 24-24/02) and (Ref. ASM 24-35/01).
(b) If the circuit breaker is open:
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 3(151)
