User's Manual

Dynamic series description
Applications
AUTEC - Dynamic Series
LIUDYN2AC0-00_eng.fm User manual
7
3.2 Applications
In compliance with the risk analysis (see chapter 4), this radio remote control can
be installed on hoisting and material handling machines and on machines for
moving, raising and transporting people (i.e. hydraulic cranes, aerial work plat-
forms, telehandlers, concrete pumps).
This radio remote control cannot be installed:
- on machines installed in places where equipment with explosion-proof
characteristics is required
- on machines where the receiving unit power supply does not come from
a battery or from a power supply unit with safety isolating transformer
- to control loads that are not isolated from AC power supply (if that is the
case)
- on machines that may generate dangerous situations if they stop due to
the loss of radio link
- on machines for which a risk analysis (see chapter 4) is not possible or
gave negative results.
Autec cannot be held responsible if the radio remote control is installed on forbid-
den applications.
3.3 Radio link
The two units constantly communicate with one another through a radio link. This
is an essential requirement to ensure safety for the radio remote controlled ma-
chine.
An address is stored in the S-KEY (see paragraph 12.2) and in the address key
on the IDK connector in the receiving unit (see paragraph 8.1); the units use this
address to code their messages. This address is unique (Autec produces it only
once), univocal (specific for each radio remote control) and not reproducible.
Each unit can only decode the messages coming from the unit with the same ad-
dress. This prevents messages from other radio equipment from activating any
system function.
The units send coded messages to one another:
- messages sent by the transmitting unit contain operational commands to be
carried out by the machine
- messages sent by the receiving unit contain information useful for the auto-
matic management of the working frequency and information about measure-
ments collected from the machine (Data Feedback function).