Itowa CTN User manual

USER’S MANUAL
MINI RECEIVER
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ANY REPRODUCTION OF THIS MANUAL IN WHOLE OR IN PART
WITHOUT THE PRIOR WRITTEN PERMISSION OF ITOWA IS
STRICTLY PROHIBITED.
OTHERWISE, ITOWA RESERVES THE RIGHT TO TAKE, IN
ACCORDANCE WITH CURRENT LEGISLATION, THE ACTIONS IT
CONSIDERS APPROPRIATE.
ITOWA RESERVES THE RIGHT TO MODIFY THIS MANUAL WITHOUT
NOTICE.
ITOWA
MAMRGB
REV 0
16-10-2018
Approved by the head of the Engineering Department : JM. Molina

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MINI TINY
USER'S MANUAL
INDEX
1. INTRODUCTION.......................................................................................................................................1
2. GENERAL INSTRUCTIONS FOR THE CORRECT AND SAFE USE OF THE TRANSMITTER .............2
3. TRANSMITTER DESCRIPTION............................................................................................................... 3
3.1. GENERAL DESCRIPTION.............................................................................................................. 3
3.2. CTN MODEL ................................................................................................................................... 4
3.3. CPH MODEL ................................................................................................................................... 5
4. TECHNICAL FEATURES..........................................................................................................................6
4.1. CTN MODEL ................................................................................................................................... 7
4.2. CPH MODEL ................................................................................................................................... 7
5. INSTALLATION AND START-UP............................................................................................................. 8
5.1. TRANSMITTER INSTALLATION .................................................................................................... 8
5.1.1. CTN MODEL FIXATION ........................................................................................................8
5.1.2. CPH MODEL FIXATION........................................................................................................9
5.2. CONNECTION ...............................................................................................................................10
5.2.1. CTN MODEL CONNECTION................................................................................................10
5.2.2. CPH MODEL CONNECTION ............................................................................................... 11
5.3. POWER SUPPLY...........................................................................................................................12
5.4. START-UP ......................................................................................................................................12
6. MAINTENANCE OF THE TRANSMITTER ..............................................................................................13
7. DISPLAY OF WORKING FREQUENCY (NOT VALID FOR GCFI VERSIONS)...................................... 17
8. POSSIBLE INCIDENTS AND SOLUTIONS ...........................................................................................18
8.1. INSPECTIONS IN CASE OF FAILURE..........................................................................................18
8.1.1. FAULT LOCATION............................................................................................................... 18
8.1.2. INTERFERENCE CHECK (NOT VALID FOR GCFIVERSIONS) ......................................... 18
8.1.3. TRANSMITTER CHECK....................................................................................................... 18
8.2. SUMMARY OF POSSIBLE INCIDENTS AND SOLUTIONS..........................................................19
9. LED DISPLAY........................................................................................................................................21
10. RECYCLING...........................................................................................................................................23
10.1. PACKAGING................................................................................................................................. 23

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1. INTRODUCTION
The manual you have in your hands is a guide to the correct use of the ITOWA multi-frequency
MINI RECEIVER.
This transmitter is specially designed for remote control, without cables, Itowa receivers that
act directly on electromechanical drive machinery.
The radio signals employed use FM frequency modulation and FFSK coding. In the electronic
design, the most advanced technology and the latest generation microprocessors have been
used, which allow total safety of operation.
In order to avoid undesired manoeuvres, the transmitter 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 transmitter works in the UHF band with 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 stipulated in the telecommunications regulation I-ETS 300 220.
Contact Itowa for other certificates.
GCFI VERSION
The GCFI (Intelligent Frequency Change Management) version is equipped with an intelligent
system that allows you to switch to unoccupied frequencies randomly and automatically,
preventing interference that can cause continuous stops during operation.
NOTE: EVERYTHING RELATED TO THE CHANGE OF FREQUENCY AND WORKING
CHANNEL IN THIS MANUAL IS NOT VALID FOR THIS VERSION OF THE DEVICE.

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2. GENERAL INSTRUCTIONS FOR THE CORRECT AND
SAFE USE OF THE RECEIVER
For maximum safety in the operation of the receiver, the operator must follow the rules described in
this manual.
When carrying out any maneuver of the machine, the operator must be located in a place where he
has vision at all times of the maneuver he is carrying out. If this is impossible to achieve, the
operator must be in a place that allows him to see the maximum possible maneuver and in hidden
places he must use a signaler. Never carry out a maneuver that may have an uncontrolled part.
When the operator finishes his work with the receiver, he must lock the emergency stop (STOP
BUTTON) of the transmitter and must be careful not to leave the control of the machine accessible
to unauthorized personnel.

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3. RECEIVER DESCRIPTION
3.1. GENERAL DESCRIPTION
The receiving unit consists of a box inside which are the different electronic systems for the
reception of commands and the activation/deactivation of the relays required for each machine
manoeuvre.
The receiver assembly can be divided into three blocks (Fig. 3.1.), UHF receiver, control circuit and
relay circuit.
Fig. 3.1. Receiver block diagram
The following diagram is for GCFI versión:
Fig. 3.2. Receiver Block Diagram (GCFI)
The signal captured by the antenna is injected to the receiver, which supplies the microprocessor
with a low frequency signal in FFSK code. The control module is in charge of checking that the
information received is free of errors, then elaborating the pertinent commands to activate the
opportune relay.
For GCFI models, the transmitter becomes a transceiver in order to establish two-way
communication with the transmitter.
TRANSCEIVER
CIRCUIT
CONTROL
RELAY
TO MANEUVER
CONTACTORS
RELAY
TO MANEUVER
CONTACTORS
UHF
RECEIVER
CIRCUIT
CONTROL

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In the event of malfunction of both hardware and software, specific circuits are provided in the same
circuit control that deactivates the working manoeuvres of the receiver.
For extra security, all surveillance circuits are doubled.
3.2. CTN MODEL
This is a watertight assembly (IP65 protection) made of a highly resistant plastic material. It
contains the control and connection electronics of the transmitter.
This transmitter model, thanks to its robust design, allows its location in many situations, both
indoors and outdoors.
Figure 3.3. CTN model view