Eclipse 500 System Manual page 326

Section 14. Primary Flight Display (PFD)
The VDI scale provides tick marks for zero deviation, half and full scale (up,
down). The navigation source is displayed to the below the VDI and will indicate
either ILS or FMS. A white VDI pointer indicates course deviation; if the pointer
exceeds full scale deviation, it turns amber.
If the PFD detects vertical deviation data as invalid or failed due to lost
communications, without a change in VLOC frequency or a change in Primary
Navigation source, the VDI pointer is removed, the associated text turns red and
a red X that covers the VDI.
306
Figure 195. Vertical Deviation Indicator- Full Scale
Figure 196. Vertical Deviation Indicator- Signal Loss
Copyright © — Eclipse Aviation Corporation
Eclipse 5OO Systems Manual
Version 2.0 April 2007