Hardi ISOBUS VT, Operator'S Manual

Page: 25 / 104

3 - Description
3.13
Regulation valve function diagram
˜
ATTENTION! Auto mode icons shown, but could be Manual or
Increment steps icons, depending on driver selection.
Spray job begins
Start condition:
Controller is turned OFF. Pump is turned OFF.
Pressure SmartValve to Pressure draining/TurboFiller,
suction SmartValve to Main tank, have water in Main
tank.
Driver action
Turn the controller ON.
Controller reaction
Controller detects no pressure or flow.
Starts in auto mode. Sets regulation valve to safe angle, to
avoid overpressure at pump start and to ensure that software
detects that pump is started (avoid hanging).
Driver action
Turn the pump ON.
Controller action
Controller detects no pressure or flow, Stay in safe
position.
Driver action
Turn pressure SmartValve to Spraying.
Controller reaction
Headland (boom is closed)
Software uses nozzle size and feed forward to
prepare for opening of boom.
Max. pressure limit is disabled, because last
saved nozzle size is reliable and therefore
software “dare” to close regulation valve
completely.
Headland (boom is closed)
for over 5 min
Boom is closed for a longer
period, operator could have
changed to other nozzle size.
Last saved nozzle size
becomes unreliable.
Software enable max. pressure
limit.
Controller reaction
Headland (boom is closed)
Controller detects pressure at armature and bypass flow back
to tank. Software uses last saved nozzle size and feed forward
to prepare for opening of boom.
Max. pressure limit is enabled, because last saved nozzle size
is unreliable and therefore software will not close regulation
valve completely. PrimeFlow booms are primed.
Driver action
Turn main OFF at headland. (go up)
Turn main ON to spray. (go down)
Driver action
Turn main OFF at headland. (go up)
Turn main ON to spray. (go down)