1 In
trodu
ction
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LIMM&SA0-00.fm
1
INTRODUCTION
1.1
Conventions
In this manual, all important information is highlighted in the following symbols and conven-
tions:
1.2
System description
Industrial radio remote controls of the Modular series are used to control machines from a dis-
tance.
Each industrial radio remote control is made up of at least one portable transmitting unit, from
which the user can remotely control the machine, and at least one receiving unit installed on
board the machine itself.
Each transmitting unit uses radio frequencies to transmit a coded message which contains a val-
ue called address. Each receiving unit can only decode the messages coming from its own trans-
mitting unit with the same address.
This excludes the possibility of an interference activating any system function. If the radio trans-
mission is disturbed, incorrect or interrupted, the receiving unit autonomously stops the whole
system thanks to the passive emergency function (passive stop).
The radio remote controls of the Modular series are equipped with a dual channel pro-
cessing that protects the system “radio remote machine”, when it is in neu-
tral (standstill) position, from unintended movements caused by possible radio
remote control single faults. Such safety function is only possible if the wiring instruc-
tions in the technical data sheet (see paragraph 1.5) and the regulations for correct
installation are respected (see paragraph 3.4 or paragraph 3.5).
“Master/Slave”
system
A “Master/Slave” system consists of two transmitting units (called UTX-M and UTX-S) and of two
receiving units (called URX-1 and URX-2).
A “Master/Slave” system is designed and implemented so that all its units al-
ways work in the same working application, and they cannot be split into two in-
dependent radio remote controls.
:
WARNINGS
This symbol highlights all extremely important indications and in-
formation: failure to observe them could cause grave danger to
people or objects.
:
IMPORTANT TEXTS
abcd…
abcd…
UTX-S
UTX-M
URX-1
URX-2
