Sitec TRG 72x72 User manual

SITEC S.r.l. Industrial electronics –www.sitecsrl.it
User Manual TRG 72x72 R2.A Pag. 1
USER MANUAL
72X72
TRG 72 x 72
Thermoregulator for ovens

SITEC S.r.l. Industrial electronics –www.sitecsrl.it
User Manual TRG 72x72 R2.A Pag. 3
SUMMARY
1.0 INTRODUCTION .................................................................................................................................................... 5
1.1 INTRODUCTION.............................................................................................................................................................. 5
1.2 APPLICATIONS ............................................................................................................................................................... 5
1.3 FRONT LAYOUT OF THE THERMOREGULATOR........................................................................................................................ 6
1.4LAYOUT WITH THE THERMOREGULATOR DIMENSIONS ............................................................................................................ 6
2.0 INSTALLATION AND TESTING ................................................................................................................................ 7
2.1 ASSEMBLY .................................................................................................................................................................... 7
2.2 TERMINAL BOXES AND CONNECTION ELECTRICAL SCHEME ....................................................................................................... 7
2.3 WIRING AND ELECTRICAL CONNECTIONS ............................................................................................................................. 8
2.4 SWITCHING ON AND SWITCHING OFF....................................................................................................................... 8
2.5 INSTALLATION AND TESTING .......................................................................................................................................... 8
3.0 TECHNICAL SPECIFICATIONS.................................................................................................................................. 9
3.1 SUMMARY TABLE WITH TECHNICAL SPECIFICATIONS ............................................................................................................... 9
MECHANICAL .............................................................................................................................................................. 9
ELECTRICAL ................................................................................................................................................................. 9
OUTPUTS (K1 –K2) ..................................................................................................................................................... 9
ENVIRONMENTAL ....................................................................................................................................................... 9
3.2 FACTORY SETTINGS ....................................................................................................................................................... 10
4.0 CONFIGURATION MENU ......................................................................................................................................11
4.1 MENU CONFIGURATION KEYS ......................................................................................................................................... 11
4.2 HOW TO ENTER-EXIT-SURF THE CONFIGURATION MENU ....................................................................................................... 11
4.3 MENU HIERARCHICAL SCHEME ........................................................................................................................................ 12
5.0 SETTING PARAMETERS.........................................................................................................................................13
5.1 SET THE SETPOINT TEMPERATURE .................................................................................................................................... 13
5.2 CHANGE THE TEMPERATURE PROBE ................................................................................................................................. 13
5.2.1 - Operational range of the temperature probes: ............................................................................................. 13
5.3 CHANGE THE TYPE OF SETTING ........................................................................................................................................ 14
5.3.1 - On/Off Setting................................................................................................................................................ 14
5.3.2 - PID Setting ..................................................................................................................................................... 14
5.4 HYSTERESIS................................................................................................................................................................. 15
5.5 TEMPERATURE TO ENABLE THE SECOND HEATER ................................................................................................................. 16
5.6 CONTROL AREA............................................................................................................................................................ 17
5.7 PROPORTIONAL BAND ................................................................................................................................................... 18
5.8 INTEGRAL TIME ............................................................................................................................................................ 19
5.9 DERIVATIVE TIME ......................................................................................................................................................... 20
5.10 PERIOD OF THE PWM SIGNAL ...................................................................................................................................... 21
5.11 MINIMUM TIME TO REACTIVATE THE OUTPUTS................................................................................................................. 21
6.0 ERRORS ................................................................................................................................................................22
6.1 ERROR CODES AND POSSIBLE SOLUTIONS........................................................................................................................... 22

SITEC S.r.l. Industrial electronics –www.sitecsrl.it
User Manual TRG 72x72 R2.A Pag. 5
1.0 INTRODUCTION
1.1 INTRODUCTION
The TRG 72x72 model is a digital microprocessor thermoregulator, with ON/OFF setting or single action PID
(with single heater/heaters), with the possibility to set the following parameters:
With ON/OFF setting:
Hysteresis (symmetrical or asymmetrical)
Control zone
Temperature to enable the second heater
Minimum time to restart the heater/heaters
Instead, with the PID setting (single action), you can set the following parameters:
Proportional band
Integral time
Derivative time
Period of the output PWM signal
In addition, three different kinds of temperature probes are supported, and they can be selected through the
thermoregulator menu:
Thermocouple K
Thermocouple J
PT100
1.2 APPLICATIONS
The thermoregulator can be used for the following applications:
To set the temperature of a single-action oven (only with heater)
Measurement of the oven temperature

SITEC S.r.l. Industrial electronics –www.sitecsrl.it
Pag. 6 R2.A User Manual TRG 72x72
1.3 FRONT LAYOUT OF THE THERMOREGULATOR
1.4 LAYOUT WITH THE THERMOREGULATOR DIMENSIONS
72
72
81
15.4 24
67.4
DIS. N.052 rev.0
+-
~ ~
TC
PT100
K1 K2
1 2 3 4 5 6
7 8 910 11 12
66
8.4 14.6 11.6 14.6
31.6
Please note: dimensions are expressed in millimeters.
11 LEDs for the setpoint
position
N°.3 - 7 segment
displays
Scale of the setpoint
temperature
Rotating ring nut
to set temperature.
With the IP54 protection
class.
2 Status LEDs for
the relay outputs
Setpoint LED

SITEC S.r.l. Industrial electronics –www.sitecsrl.it
User Manual TRG 72x72 R2.A Pag. 7
2.0 INSTALLATION AND TESTING
2.1 ASSEMBLY
The TRG 72 x 72 mm is designed for panel flush mounting inside a casing.
Avoid placing the inner part of the instrument in environments with very high humidity levels or dirt that may
create condensation or introduction of conductive parts or substances into the instrument.
Make sure that the unit has adequate ventilation and avoid installation in containers that house devices that
may cause the instrument to operate outside the stated temperature limits.
Install the instrument as far away as possible from sources of electromagnetic disturbances such as motors,
remote control switches, relays, solenoid valves etc.
2.2 TERMINAL BOXES AND CONNECTION ELECTRICAL SCHEME
1) Clips to connect the thermoregulator:
1\2 Clips for power supply
3\4 Clips to connect the thermocouple
3\5\6 Clips to connect the PT100
7\8\9 Clips to connect the K1 relay
10\11\12 Clips to connect the K2 relays
+
-
~ ~
TC
PT100
K1 K2
1 2 3 4 5 6
7 8 910 11 12
+
-

SITEC S.r.l. Industrial electronics –www.sitecsrl.it
Pag. 8 R2.A User Manual TRG 72x72
2.3 WIRING 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 INSTALLATION 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.

SITEC S.r.l. Industrial electronics –www.sitecsrl.it
User Manual TRG 72x72 R2.A Pag. 9
3.0 TECHNICAL SPECIFICATIONS
3.1 SUMMARY TABLE WITH TECHNICAL SPECIFICATIONS
TYPE
VALUE
UNIT
COMMENTS
MECHANICAL
Dimensions
72x72
mm
See paragraph 1.4
Class of protection
IP54
-
Only for the front ring nut
Weight
220
g
Provided with connectors and
hooks
Terminal box connections
Screw terminal
-
Max 1.5 mm2 cable
Assembly
Assembly within a device
-
ELECTRICAL
Supply voltage
24
VAC/DC
±10% 50-60 Hz
Max power demand
250
mA
OUTPUTS (K1 –K2)
Max electrical load
6 (4)
A
AC1 (AC3)
Max voltage
230
V
Vac
Electrical operations
5x105
Mechanical operations
107
ENVIRONMENTAL
Temperature of operation
From 0 to +60
°C
Temperature of transportation
and storage
From -25 to +70
°C
Operation moisture
From 30 to 95
%RH
Without condensation

SITEC S.r.l. Industrial electronics –www.sitecsrl.it
Pag. 10 R2.A User Manual TRG 72x72
3.2 FACTORY SETTINGS
PARAMETER
DEFAULT
UNIT
Prb (Temperature probe)
tEr (Thermocouple K)
-
rEG (Type of setting)
OnF (On/Off setting)
-
Hy5 1nF (Lower Hysteresis)
0
°C
Hy5 5UP (Upper Hysteresis)
0
°C
T5H (Temperature to start the second heater)
0
°C
Ctr (Control temperature)
0
°C
Pb (Proportional band)
50
°C
1nt (Integral Time)
200
s
dEr (Derivative Time)
50
s
Cyt (Period of the PWM signal)
20
s
LP5 (Min time to reactivate the outputs)
0
s