TM 5-2420-230-24-1
4.2 Standard features
Below described functions available on the EGS units.
4.2.1 Automatic powerup in neutral
When power is first applied to the EGS, NEUTRAL is always selected.
This is REGARDLESS of the position of the shift lever (it can be in either forward, neutral or reverse
position).
In order to start driving, the driver first has to place the shift lever into the neutral (central detented)
position before a specific direction can be selected.
4.2.2 Neutral start protection
Each EGS can have an output signal, which is deactivated whenever the shift lever is in the neutral
position.
This signal can be used to control a normal closed relay preventing engine start-up whenever the shift
lever is NOT in the neutral detented position.
If during powerup the shiftlever is in forward or in reverse, the neutral start protection will not be
activated (due to the function "automatic powerup in neutral"). Only after leaving this function
"automatic powerup in neutral" the neutral start protection will be activated.
4.2.3 Shift repeat
While making an up- or down shift for a short time (more than 0.1 sec), this will result in an upshift or a
downshift. If holding the lever in either UP or DOWN position, the EGS will produce subsequent
upshifts or downshifts with a certain time interval (example 1.5 seconds).
4.3 External inputs
Apart from the shift lever, external signals can be used to customise the behaviour of the EGS.
Both inputs can be used for various functions (application dependent) such as transmission declutch,
force neutral, throttle sensing, kickdown, mode select, etc...
Note : when an integrated push button is used, only one additional external input is available.
EGS user manual. Page 7 of 25
SPICER CLARK-HURTH
Document reference : egsman4.doc
Revision date: 07/04/97
Ten Briele 3, 8200 Brugge, Belgium
Tel: +32/50/402445
Fax: +32/50/402402
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