R **ON A/C 051-099, 106-149, 204-299, 301-399, 401-499,
 (3) Ground speed (Ref. Fig. 017) The ground speed is displayed in the left upper corner of the ND for ROSE, ARC or PLAN mode (item A). The GS title is displayed in white color and the ground speed value in green. In case of failure or NCD, the ground speed value is replaced by three dashed lines (item B). The ground speed can also be displayed on the CDU if the DATA DISPLAY selector switch is placed in the TK/GS position.
 1EFF : 005-049, 051-099, 101-149, 151-199, 1 34-14-00Page 89 1201-299, 301-399, 401-499, 1Config-3 Aug 01/05 1 1 1CES 1

 IR - Heading Information Display on the VOR/DME RMI
 Figure 016

 1EFF : 051-099, 1 34-14-00Page 90 1 1 Config-3 Aug 01/05 1 1 1CES 1

 IR - Heading Information Display on the VOR/ADF/DME RMI
 Figure 016A

 1EFF : 106-149, 201-299, 301-399, 401-499, 1 34-14-00Page 91 1 1 Config-3 Aug 01/05 1 1 1CES 1

 IR - GS, Wind, Vertical Speed Information Display
 Figure 017

 1EFF : 051-099, 106-149, 204-299, 301-399, 1 34-14-00Page 92 1401-499, 1Config-3 Aug 01/05 1 1 1CES 1

 (4)
 Wind indications (Ref. Fig. 017) The wind origin, force and direction is displayed in the left upper corner of the ND, for ROSE, ARC and PLAN mode (item A):

 -
the wind origin is displayed in green color in degrees with respect to the true North

 -
the wind force is displayed in green color in knots

 -
the wind direction, in analog form, is represented by means of a green arrow orientated with respect to the north reference in use. This arrow is displayed only if the wind force is greater than 2 knots. In case of failure or NCD, the digital data are replaced by three dashed lines and the wind direction arrow disappears (item B). The wind indications can also be displayed on the CDU if the DATA DISPLAY selector switch is placed in the WIND position.

 (5)
 Vertical speed (Ref. Fig. 017) The inertial vertical speed is displayed in the right side of the PFD (item C). The vertical speed scale consists of:

 (a)
 a trapezoidal grey background colored surface

 (b)
 a fixed white scale with 500 ft/mn spaced marks from -2000 ft/mn to +2000 ft/mn

 (c)
 a needle giving in analog form the actual vertical speed value

 (d)
 a number in a moving blanking window. This window accompanies the needle (above) the needle if V/S > 0, below if V/S < 0). The number gives the V/S value in hundreds of ft/mn. Between -200 ft/mn and +200 ft/mn, both the window and the number disappear.

 (e)
 above +6000 ft/mn (or below -6000 ft/mn), the needle remains stopped where it is. When the vertical speed exceeds +6000 ft/mn or -6000 ft/mn, the digital indication and the analog needle change from green to amber.

 (f)
 In addition, those indications change to amber in approach, in the following cases:

 -
V/S less than -2000 ft/mn below 2500 ft RA.

 -
V/S less than -1200 ft/mn below 1000 ft RA.

 1EFF : 051-099, 106-149, 204-299, 301-399, 1 34-14-00Page 93 1401-499, 1Config-3 Aug 01/05 1 1 1CES 1 In case of failure, the inertial vertical speed display is automatically replaced by the baro vertical speed display. (Ref. 34-13-00).

 (6) Reconfiguration display In case of loss of inertial parameters on the CAPT or F/O PFD and ND, the IR3 can be used as a back up source by placing the ATT HDG selector switch in CAPT/3 position for the CAPT PFD and ND or in F/O/3 position for the F/O PFD and ND.
 C. Warnings (Ref. Fig. 018, 019, 020, 021, 022)
 (1) In addition to the ATT or HDG flags displayed on the PFDs, NDs and on the CDU, warning messages are displayed on the lower part of the upper ECAM DU.
 (a)
 NAV IR 1(2)(3) FAULT
 NAV IR 1(2) + 2(3) FAULT
 When these messages are displayed:

 -
the MASTER CAUT lights on the glareshield come on

 -
the Single Chime (SC) sounds

 -
the IR FAULT legend flashes on the CDU.

 (b)
 NAV ATT DISCREPANCY This message is displayed when a difference higher than 5 deg. is detected by comparison inside the FWCs between the roll angle or the pitch angle provided by two IRs. When it is displayed:

 -
the MASTER CAUT lights on the glareshield come on

 -
the Single Chime (SC) sounds

 -
the CHECK ATT message appears on the PFD.

 (c)
 NAV HDG DISCREPANCY this message is displayed when a difference higher than 7 deg. (or 5 deg. in true heading) is detected by comparison inside the FWCs between the heading value provided by two IRs. When it is displayed:
　
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