SITEC S.r.l. Industrial electronics
Pag. 8
R2.A
User Manual TRG 72x72
2.3 W
IRING AND ELECTRICAL CONNECTIONS
Before making the connections it is recommended to check that the supply voltage is displayed on the ther-
moregulator and that the absorption of the actuators to be connected to the instrument does not exceed the
maximum current allowed.
The thermoregulator is designed to be permanently built-in inside a housing, therefore it is not equipped with
either switch or inner overcurrent protective devices. It is therefore advisable to provide for the installation of
an overcurrent protective device.
Moreover, it is recommended to adequately protect the power supply of all the electrical circuits connected to
the instrument using devices (ex. fuses) proportionate to the circulating currents.
It is recommended to use cables with proper insulation, according to voltages, temperatures and operating
conditions and to ensure that the cables for the input sensors are kept away from power supply cables and
other power cables in order to avoid induction of electromagnetic disturbances. If some input cables are
screened, it is advisable to connect them to the ground on one side only
Finally, it is recommended to check that the set parameters are the right ones and that the application works
correctly before connecting the outputs to the actuators in order to avoid plant anomalies which may cause
damage to people, things or animals.
Sitec S.r.l. and its legal representatives accept no responsibility for any damage to people, things or
animals resulting from tampering, misuse, improper use or otherwise not in accordance with the in-
strument features.
2.4 SWITCHING
ON
AND
SWITCHING
OFF
To switch on / off the thermoregulator you just have to supply/not supply power to the thermoregulator.
The power supplied to the thermoregulator must be 24V (AC or DC) ± 10%.
2.5 I
NSTALLATION AND
TESTING
1. Connect the temperature probe (thermocouple or PT100) to the thermoregulator.
2. Connect the power source to the thermoregulator, then supply power to it
3. Set-up the thermoregulator according to your needs through the configuration menu.
4. Check that the thermoregulator does not signal any error.
5. Unplug and disconnect the thermoregulator.
6. Connect the actuators to the thermoregulator.
7. Install the thermoregulator in its relative casing.
8. Start the oven (and the thermoregulator) checking that the thermoregulator does not signal errors.
