User's Manual

LIKTCNA0 Page 3
2.1 Operational principle
2.2
2.3 Documentation
The KTC system is used to activate commands by remote control (to start up equipment for example) and to
turn on signals ( i.e.: telemetry …).
The KTC consists in a transmitting unit and a receiving unit.
The transmitting unit communicates with the receiving unit by means of a coded radio message which contains
data and address information. The receiving unit can only decode messages sent by the transmitting unit
belonging to the same kit (i.e.: with the same address). This ensures that signals or unwanted commands
cannot be activated. In the event of: interference; an incorrect or interrupted radio transmission, the receiving
unit stops the system autonomously (passive emergency function).
KTC operational scheme
The transmitting unit is installed where the commands are activated (INPUT) by means of actuators
(pushbutton, relays, output PLC …). The receiving unit is installed where the commands or signals (OUTPUTS)
are controlled (relays, lights, lamps etc..).
Radio frequencies
The KTC is programmed for use at a certain radio frequency.
The frequencies used fall within the band of frequencies established by American regulations at the time the
KTC was put onto the market.
The band is 902 -928 MHz.
Should it be necessary to install the KTC near other radio equipment, the radio frequencies used by the two
radios must be different (for frequency setting see page 26).
The following minimum documentation is supplied with each radio remote control:
- installation, operation and service manual
- a guarantee certificate
- the radio remote control technical data sheet
Make sure that the following documents have been supplied: if they are not, request them from Autec.
Please specify the radio remote control serial number.
Warranty
The conditions of warranty applicable to the KTC are specified in the " Warranty Certificate".
The radio remote control identification and approval data is given on plates that are on both the transmitting unit
and the receiving unit.
The plates MUST NOT be removed from where they are placed or damaged otherwise the warranty will
be forfeited.
Risk analysis of the equipment or system which uses a KTC , has to take into account that the
radio link may be interrupted, due to electromagnetic disturbance or interference. This will
cause interruption of the KTC system functionality and will require a new start-up sequence.
Transmitting
unit
Receiving
unit
R
PLC/PC In
. . .
elays
Lights
Lamps
INPUT
KTC
P
. . .
ushbutton
Relays
Output PLC
OUTPUT