User's Manual

AUTEC - Air series
Radio remote control description 7
LIAIRE02-01
1.4 Radio link
The transmitting unit constantly communicates with the receiving unit through a radio link.
This is an essential requirement to ensure safety for the radio remote controlled machine.
The two units use messages coded through an address that is unique (produced by Autec
only once) and univocal (speci󰘰c for each radio remote control). Each unit can only decode
messages coming from the unit with the same address.
This prevents messages from other radio equipment from activating any "machine+radio
remote control" system function.
1.5 Classi󰄈cationofcommands
Commands sent by the transmitting unit are classi󰘰ed according to their type.
1.5.1 Type of command: analogue or digital
Commands sent by the transmitting unit can either be analogue or digital.
Analogue commands generate proportional outputs as a function of the position of the
corresponding actuator.
Digital commands switch the status of their corresponding output, according to the position
of the related actuator. This status can either be on or o󰘯.
1.5.2 Name of commands
All commands sent by the transmitting unit are identi󰘰ed by abbreviations, which are written in
the technical data sheet to highlight the match between commands sent and machine functions.
1.6 Safety function: stop protection
The stop function brings the machine to a safe state every time it is necessary to stop it due
to a potentially hazardous situation. Depending on the situation, this function can either be
deliberately activated by the operator through the STOP pushbutton, or it is automatically
activated when the radio link is incorrect or interrupted (the receiving unit autonomously
stops the radio remote control).
The stop function by means of radio remote control is available only if the radio remote
control is started up (see "Starting up the radio remote control" in the "Part C" of the manual).
In any other condition the transmitting unit is not able to bring the machine in a safe state.
Never leave the transmitting unit unguarded in order to avoid uncertainty
about the availability or unavailability of the stop function.
1.7 Protection against unintended movements from the rest position
This function protects the system “machine+radio remote control” from unintended movements,
namely machine movements not activated intentionally by the user, but resulting from possible
electrical and mechanical failure of the radio remote control.
Such function checks the neutral (rest) position of the actuators that control the machine's
movements. Each time one of those actuators is operated, the transmitting unit sends both
the movement command and the “SAFETY” command.