18
6.4.3 THE RADIO RECEIVER UNIT
(Pict.10)
The radio control version unit (3) is externally equal to the remote control version, internally, it includes the
electronic system that manages machine logic and radio module and works as a receiver; a safety system
prevents other transmitters from entering the system since it only recognizes its matched keyboard (transmitter)
through the RFID code (radio frequency identifier).
The European version (868 MHz) includes an antenna that is applied to the electronic units through a connector,
it enhances the medium/large range reception field (considering the 868 MHz transmitter reduced power).
A supplementary unit (7 function radio) is available upon request; it is similar to the main one and it activates
two auxiliary functions (on the OPT1 – OPT2 radio button) that control the diesel engine acceleration or turns
on-off a motor-compressor (generator).
6.4.4 THE CABLE KEYBOARD
(Pict.9)
The keyboard, which can be used with a single hand, has been studied to provide the operator with an
ergonomic and practical remote control device to optimize the different crane functions.
It is mainly made up of a plastic container with a protected control panel integrally connected to a supporting
ergonomic handgrip.
Five radial selectors (
S
) that control machine
maneuvers are found on the panel (4 for crane
movements, 1 for engine START/STOP). The
safety stop emergency button (
P
) is located over
the maneuver selectors; it must also be used
as keyboard on/off button.
The green indication Led (
L
) is found aside the
emergency button and the diesel engine START/
STOP selector, if these two functions are
activated.
The system foresees the possibility to
supply and control these two external functions.
The keyboard panel is provided with the
essential function-guiding symbols with green
background; it results pleasant and intuitive for
the operator.
The movement speed that has been pre-
established through the maneuver selectors, (
S
)
can be controlled through the potentiometric
button that is housed on the bottom of the
handgrip.
The control unit connector is applied at the end
of the cable; such cable remains flexible and
easy to handle even if exposed to extreme
conditions.
Pict.9
S
P
start-stop
L
