Lever Position and Switch Pattern
-------------------------------------------------------------------------------LEVER POSITION 0 1 2 3 FULL -------------------------------------------------------------------------------TRACK 1 XXXXX XXXXX TRACK 2 XXXXXXXXXXX TRACK 3 XXXXXXXXXX TRACK 4 XXXXXXXXXXX TRACK 5 XXXXXXXXXXXXX -------------------------------------------------------------------------------SLAT ANGLE 0 18 22 22 27 -------------------------------------------------------------------------------FLAP ANGLE 0 10 15 20 40 -------------------------------------------------------------------------------
Table 2
**ON A/C 301-399,
Lever Position and Switch Pattern
-------------------------------------------------------------------------------LEVER POSITION 0 1 2 3 FULL -------------------------------------------------------------------------------TRACK 1 XXXXX XXXXX TRACK 2 XXXXXXXXXXX TRACK 3 XXXXXXXXXX TRACK 4 XXXXXXXXXXX TRACK 5 XXXXXXXXXXXXX -------------------------------------------------------------------------------SLAT ANGLE 0 18 22 22 27 -------------------------------------------------------------------------------FLAP ANGLE 0 10 14 21 25 -------------------------------------------------------------------------------TAB INB'D 0 5.4 8.4 13.6 16.1 -------------------------------------------------------------------------------TAB OUT'D 0 6.2 9.7 15.8 19.1 -------------------------------------------------------------------------------
Table 2
R 1EFF : 151-199, 301-399, 401-499, 1 27-51-00Page 43 1 1 Aug 01/05 1 1 1CES 1
**ON A/C ALL
The SFCC memory keeps the last correct signal, which controls the slat and flap position. The SFCCs compare a new CSU signal with the flap position signal which comes from the FPPU. If a change of flap angle is necessary, the PCU solenoids get electrical power. The flaps move towards the new position (Ref. 27-54-00). When the position data from the FPPU is the same as the CSU signal, the flaps stop.
NOTE : Slat and flap movement always obeys the last correct control
____ lever movement. For example, when the lever moves from position 3 to FULL, the flaps will extend in the direction of the FULL position. If the lever returns to position 3 before the flaps reach position FULL, the direction of flap movement changes and the flaps move back to position 3.
(4) Flap Auto-Command Function
Two flap configurations, which are dependent on the airspeed, are possible with the slat and flap control lever at the position 1 (ECAM indication 1 or 1 + F). The configurations are related to the Computed Air Speed (CAS) and the lever position (0 or 2) before the lever is set to the position
1. In the 10 deg configuration, the flaps retract automatically to 0 deg if the CAS is equal to or more than 210 knots. After the automatic retraction, the flaps will not extend (to configuration 1 + F) until the CAS is equal to or less than 100 knots.
----------------------------------------------------------------------------LEVER POSITION CAS FLAP
MOVED FROM (KNOTS) CONFIGURATION
----------------------------------------------------------------------------Full, 3, 2 to 1 equal to or more than 210 0 deg.
Full, 3, 2 to 1 less than 210 10 deg.
0 to 1 more than 100 0 deg.
0 to 1 equal to or less than 100 10 deg.
(configuration 1 + F)
B. Operation of the Wing Tip Brake
(Ref. Fig. 022)
The WTBs lock the transmission system if a failure occurs.
1EFF : ALL 1 27-51-00Page 44 1 1 Aug 01/04R 1 1 1CES 1
Wing Tip Brake Logic Figure 022
1EFF : 1 1R 1CES ALL 1 11 1 27-51-00 Page 45 Aug 01/04
(1)
If one or the other lane of the flap channel finds a failure:
-
the lane arms its own WTB circuits
-
the other channel receives a WTB-arm discrete signal.
(2)
If one or the other lane in the second flap channel also finds the failure:
-
the lane arms its own WTB circuits
-
the first channel receives a WTB-arm discrete signal.
When the SFCCs receive a WTB-arm signal they energize the related WTB solenoid valves. The WTBs lock the transmission system. If one SFCC does not operate, the other SFCC receives a WTB-arm signal automatically. If the other SFCC finds a failure, one solenoid valve on each WTB gets electrical power.
(3) Reset
The WTB can only be reset on the ground through the CFDS.
C. Monitoring for Failure Conditions
(1) Monitoring of the Power Transmission System
(Ref. Fig. 006)
The SFCCs monitor:
-
the flap position data from the APPUs and the FPPU
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