2
VD1T
connects via serial input to the cloud and the online CORTEX platform or to a local computer with the CAMIN program or to the memory key or to the Mini Logger or to
any Modbus network.
CAMIN program: local connection and monitoring - recording and management of the thermostat through the CAMIN program installed on a local computer.
Mini Logger recorder: The thermostat can be connected to the recorder and record based on selected minutes on a microSD memory card, its temperatures and the
state of the relays and alarms. It is connected via a cable to the serial input and we program the parameter Add = 1.
Memory key: the parameter values are stored in the memory key or recorded by it in the thermostat.
When the parameter
rHC = 2,
the relay operates in heating mode based on the parameter
Hod
while “
SET”
is displayed. By pressing
the relay is activated and the
indication “
rUn
” is displayed. By pressing
we see successively the temperature of the second sensor, if it is activated, as well as the remaining time. When time elapses,
the relay is deactivated and “
End
” is displayed on screen. By pressing
again, the procedure starts over. The thermostat constantly controls the relay based on the adjusted
Set Point (SPo). If
SPo
changes during “
rUn
”, automatically the control of the relay is adjusted. If timer “
Hod
” changes during “
rUn
” mode, it will not change until the next
running cycle.
SMART DEFROST
Smart defrost function: The thermostat finds the ideal operating temperature of the evaporator and if the evaporator operates at a temperature lower than the ideal temperature
constant dSt than the ideal, and for a time longer than the time constant dS1, defrost begins.
Smart defrosting works in parallel and independently of conventional defrosting. It is automatic and the thermostat decides when to defrost and for how long. It is necessary
to connect the evaporator sensor and set the parameter 8, SOI = 0. The two types of defrosts - smart and conventional - can operate simultaneously based on the respective
settings. By enabling smart defrosting, the conventional defrost can be set to operate safely - for example one defrost every 48 hours. This time is renewed each time an
automatic defrost is performed.
Activate the smart defrost from parameter 24, dSE = 1. It is recommended to start the refrigerator, to make a defrost cycle, where it is activated with parameter 25, dSb = 1.
The time constants dS1 and temperature dSt are formed based on the image of the element: if we observe ice, we reduce the constants.
ELECTRICAL DIAGRAM - DIMENSIONS
ATTENTION
: according to safety standards, the device must be properly positioned and protected from any contact with electrical parts. The device must be fastened in such a way that it
cannot be removed without the use of tools. Disconnect the main safety switch of the installation before proceeding to any maintenance. Disconnect the power supply of the device before
proceeding to any maintenance. Do not place the device near heat sources, equipment containing strong magnets, in areas affected by direct sunlight or rain. Prevent electrostatic discharges
and sharp objects from been inserted to the device. Separate signal cables from power supply cables to prevent electromagnetic disorders. Signal cables must never be in the same pipe with
the power supply cables.
ATTENTION
: Read carefully the technical specifications and make sure that the working conditions are appropriate. According to safety standards, the device must
be fastened in such a way that it cannot be removed without the use of tools
Dimensions are in mm. The device is mounted on panel hole with cut 29x71mm and restrained with plastic side brackets
Parameter
SOI = 1
: door switch or
SOI = 0
: evaporator sensor terminals 4-5
PARAMETER TABLE
#
description
min
max
VD1T
Μ.Μ
1
SΡo
SET POINT: room temperature setting
LSP
HSP
2.0
°C/°F
2
Cod
Password in the following parameters
Cod = 22
0
255
0
-
ANALOG INPUTS - TEMPERATURE
3
diF
Differential of room temperature SPo (thermostat delay)
0.1
25.0
3.0
°C/°F
4
LSP
Lower setting limit of SPo
-50.0
HSP
-2.0
°C/°F
5
HSP
Maximum setting limit of SPo
LSP
+110
8.0
°C/°F
6
dEC
Temperature indication as integer or decimal, where 0 = integer / 1 = decimal
0
1
1=decimal
-
7
Sen
Sensor type NTC/PTC
0 = PTC / 1 = NTC
0
1
1=NTC
-
8
SOI
Set 2
nd
input as NTC / PTC evaporator sensor or door switch:
0 = evaporator sensor / 1 = door switch
Selecting one setting automatically turns off the alarms and features of the other setting.
0
1
1=door
-
9
SΕ1
Room sensor offset
-9.9
+15.5
0.0
°C/°F
10
SΕ2
Evaporator sensor offset
-9.9
+15.5
0.0
°C/°F
11
tdS
Delay in displaying the actual room temperature on the screen when the door is opened
0
60
0
min
12
C_F
Temperature measurement unit: toggling between °C/°F do not adjust the SPo automatically, it must be
changed by the user :
0 = °C / 1 = °F
0
1
0=°C
°C/°F
ALARMS
13
ΑLo lower alarm limit
temperature of the cabinet
-50.0 +110
-4.0
°C/°F
14
ΑHi higher alarm limit
temperature of the cabinet
-50.0 +110
+15.0
°C/°F
15
At2
Time delay in activating “AΗi”, “ΑLo”
and the buzzer among them.
This setting does not apply to sensor failure “LF1”, “LF2” and door alarm “dor”.
0
99
20
min
DIGITAL INPUT – DOOR SWITCH
16
dLd
Door switch operation
0 = OFF / 1 = NC (normally close contact) / 2 = NO (normally open contact)
In heating mode the door control is deactivated
0
2
0=OFF
-
SERIAL INPUT
FOOD DRYING APPLICATIONS (e.g. SAUSAGES) - HEATING MODE WITH COUNTDOWN