Receiver IT3R22
USER'S MANUAL
4
1. INTRODUCTION
The manual you have in your hands is a guide to the correct use of the ITOWA IT3R22 multi-frequency
receiver.
This receiver, together with the associated remote control, is specially designed to be controlled remotely,
without cables, and to act directly on electromechanically driven machinery.
The radio signals used employ FM frequency modulation and FFSK coding. The most advanced
technology and state-of-the-art microprocessors have been used in the electronic design.
In order to avoid undesired manoeuvres, the receiver is equipped with various safety mechanisms, which
will be described in the following chapters. Any auto-detection of anomalies blocks the execution of
manoeuvres.
The receiver operates in the UHF band on frequencies between 433.050 and 434.775 MHz (UN 30 and
32 of the C.N.A.F.), or between 868.000 and 870.000 MHz (UN 39 of the C.N.A.F.) as prescribed by the I-
ETS 300 220 telecommunications regulations.
Contact Itowa for other certificates.
1.1. GCFI VERSION
The GCFI (Intelligent Frequency Change Management) version is equipped with an intelligent system that
allows it to change to unoccupied frequencies in a random and automatic way, thus avoiding interference
that could cause continuous stops during operation.
ATTENTION!: EVERYTHING IN THIS MANUAL RELATED TO THE CHANGE OF
FREQUENCY AND WORKING CHANNEL IS NOT VALID FOR THE GCFI VERSION.
2. GENERAL TERMS AND CONDITIONS FOR THE CORRECT USE OF
THE RECEIVER
In order to have the maximum security in the handling of the receiver, the operator must follow the rules
described in this manual.
When carrying out any manoeuvre on the machine, the operator must be located in a place where he has
a view of the manoeuvre being carried out at all times. If this is not possible, the operator must be located
in a place that allows him to see the maximum possible maneuver and in the hidden places he must use
an assistant. Never carry out a manoeuvre that may have an uncontrolled part.
When the operator finishes his work on the receiver, he must lock the EMERGENCY STOP BUTTON of
the transmitter and must take care not to leave the control of the machine accessible to unauthorised
personnel.
