Cobra 4400 Instructions d'exploitation télécharger pdf (Page 22)

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

start-stop

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Cobra 4400 Instructions d'exploitation Page 22