RSG VX-1025E Plus LogiTemp Electronic Controller System User Manual
- June 5, 2024
- RSG
Table of Contents
VX-1025E Plus LogiTemp Electronic Controller System
LogiTempTM Electronic Controller System
Operations Manual (Full Gauge Version VX-1025E Plus)
PN: 219828 REV 3/22
VX1025EPLV01-01T(UL)-18921
You can get this in the palm of your handf FG Finder application.
Ver.01
VX-1025e plus
Fast Freezing
Function Lock
DIGITAL REFRIGERATION CONTROLLER WITH INTEGRATED MODULE FOR AN ELECTRONIC EXPANSION VALVE
Switch off Electronic Control Expansion Functions Valve
IEB Power Backup
IP 65
FRONT
Programming Monitoring Degree Quick coupling in Series System of protection
connection
VX-1025e plus
E251415
1. DESCRIPTION The VX-1025e plus is a digital temperature controller for
refrigeration with a digital output for electronic expansion valve (EEV)
control. Thus, it is able to control superheating in order to improve energy
efficiency of refrigeration systems. A compact and integrated controller that
offers a complete solution for electronic expansion valve control. In addition
to superheating control, VX-1025e plus controls room temperature, defrost,
fan, lighting and alarms. Economic setpoint and fast-freezing functionalities
are available for ambient temperature control. In addition, there is a battery
back-up dedicated to the expansion valve closure in the event of power outage,
replacing the solenoid valves used for these applications. VX-1025e plus can
be set as “Driver Only”, controlling just the electronic expansion valve and
superheating of the refrigeration system. This way, it can be used as part of
a larger control system, interconnecting with other controllers. Features
serial communication output to Sitrad software, real-time clock for defrost
events programming, tamper-proof function smart system and control functions
shutdown mode. In addition, it features a digital filter that simulates mass
increase in ambient sensor (S1), delaying response time due to thermal inertia
and preventing unecessary compressor start-ups. Product conforming to UL Inc.
(United States and Canada).
2. SAFETY RECOMMENDATIONS
– Read this manual before installing and using this controller; – Make sure
that the controller assembling is done properly; – Switch off power supply
during controller’s installation; – Use appropriate Personal Protective
Equipment (PPE); – Install the vinyl adehesive protector (included) in
installations prone to water splashes, such as refrigerated counters, etc. –
Installation procedures must be performed only by licensed technicians,
subject to codes and regulations.
3. APPLICATIONS
Display Cases, Walk-in, Reach-in, Undercounter, Beverage Display, Chiller,
Blast Freezer.
4. TECHNICAL SPECIFICATIONS
Power supply
Pressure control range
Pressure sensor input Temperature control range Average consumption Pressure
resolution Temperature resolution Working temperature Working Humidity Digital
input Degree of protection Maximum Sizes (mm) Bay Size (mm)
12Vdc +10% -14 to 850 psi -1 to 58.6 bar (operating range of the configurable
sensor)
4-20mA -50 to 105°C / -58 to 221°F
600 mA 0,1 psi / 0,1 bar
0,1°C / 0,1°F -20 to 60°C / -4 to 140°F 10 a 90% RH (without condensation)
Configurable dry contact type
IP 65 (front) 76 x 34 x 94 (WxHxD) X = 71±0,5 Y= 29±0,5 (See Diagram 5)
Output capacity (UL certificate 60730)
COMP
DEFR FAN
AUX / LIGHT
120-240 Vac, 12 A Resistive, 100k cycles 120-240 Vac, 8 A General Use, 100k
cycles
240 Vac, 1 HP, 100k cycles 120 Vac, 1/2 HP, 100k cycles
120-240 Vac, 5 A Resistive
240 Vac, 1/8 HP 120 Vac, 1/10 HP
240 Vac, 1/8 HP 120 Vac, 1/10 HP 120-240Vac 5W General Use
4. DISPLAY AND KEYS
LED indicator Defrost cycle LED indicator Fan enabled
LED indicator Compressor Enabled
LED indicator for the auxiliary outlet enabled
LED indicator for the EEV
LED indicator temperature unit
Flatec Key Set Key
A
VX-1025e plus
Up Key Down Key
5. INSTALLATION – PANEL AND ELECTRICAL CONNECTIONS
71 ± 0,5 mm
29 ± 0,5 mm
Size of the Bay for inserting the device
Panel (Front View)
Panel (Side View)
CAUTION
WHERE THE INSTALLATION LOCATION NEEDS TO BE SEALED AGAINST LIQUIDS, THE
OPENING IN WHICH THE CONTROLLER IS TO BE INSTALLED MUST BE NO MORE THA
70.5x29mm. THE SIDE CLASPS MUST BE SECURED IN SUCH A WAY AS TO CREATE A TIGHT
RUBBER SEAL THAT PREVENTS ANY LIQUIDS ENTERING THE OPENING AND THE CONTROLLER.
6. CONNECTION DIAGRAM
S1 S2 S3
SITRAD D1 A B
11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10
21 22 23 24 25
COMMON
BLACK YELLOW RED ORANGE GREY / BLUE P1 OUT P1 VCC 12Vdc GND
Power Supply
-+
Source 12Vdc
P1
COM A B A B EEV
A @! #
AUX DEFR FAN COMP
Power Supply
Compatibility EEV / Models
SB88, SB89, SB90, SB91, SB92, SB93, SB94, SB108, SB110, SB114, SB118, SB124,
SB130, SB132.
SB68 SB69
Electrical connection of pressure transducer P1
VCC: 12Vdc RED
BROWN
OUT: 4~20mA BLACK
GREEN OR WHITE
S1, S2 and S3 – Temperature Sensors P1 – Pressure Transducer D1 – Digital Input (Dry Contact) EEV – Electronic Expansion Valve
A
EEV
EEV
A
BB
NEW CONNECTION SYSTEM (QUICK CONNECTOR): PUSH-IN WIRE CONNECTORS – QUICKLY
Pluggable and Push-in – Quickly – Push-in Connection: – Hold the wire close to
its end and insert it into the required opening. – If necessary, press the
button to help make the connection. – Ferrule type terminals can be used. –
For the signal connections, the ferrule must be at least 12mm.
In the power connectors the pin must be at least 7mm.
NOTES 1 – Signal Connectors: – Connections 1 to 20 must use wire of a gauge
between 0.2 and 1,5mm² (26 and 16AWG).
NOTES 2 – Power Connectors: – Connections 21 to 25 must use wire of a gauge
between 0.2 and 2.5mm² (26 and 12AWG).
TO DISCONNECT THE PUSH-IN CONNECTION: – To disconnect the wire, press the
button and remove it.
Strip of the wire
Ferrule
6.1. Connecting the temperature sensors
– Connect the wires of the S1 Sensor to terminals ’11 and 12”, the wires of the S2 sensor to terminals and’13 and 14” and the wires of the S3 sensor to
terminals `’15 and 16”: the polarity is indifferent. – The length of the
sensor cables can be increased by the user themselves up to 200 meters (650
ft.), using a 2×24 AWG PP cable.
6.2. Recommendations from NBR5410 and IEC60364 standards
a) Install surge protectors to the controller’s power supply. b) Install
transient suppressors – suppressor filter (type RC) – in the circuit to
increase the working life of the controller’s relay. c) The sensor cables can
be together, but not in the same conduit as the power supply fot the
controller or the loads.
7. INSTALLATION PROCEDURE
a) Cut out the panel plate (Diagram 5 – Item 14) where the controller is going
to be installed, to a size where X = 71±0,5 mm and Y = 29±0,5 mm; b) Remove
the side clasps (Diagram 6 – Item 14): to do this, press on the elliptical
central part (with the Full Gauge Controls Logo) and slide the clasps back; c)
Pass the wires through the opening (Diagram 7 – Item 14) and install the
electrics as described in item 6; d) Insert the controller into the opening
made in the panel, from the outside; e) Replace the clasps and move them until
they are pressed against the panel, securing the controller to the housing
(see arrow in Diagram 6 – Item 14); f) Adjust the parameters as described in
item 9.
WARNING: Where the installation needs to be sealed tight against liquids, the
opening for the controller must be no more than 70.5x29mm. The side clasps
must be secured in such a way as to create a tight rubber seal that prevents
ant liquids entering the opening and the controller. Protective Film – Diagram
9 (item 14) This protects the controller when it is installed somewhere
subject to splashing water, such as refrigerated counters.
IMPORTANT: Only apply it after you have finished making the electrical
connections: a) Pull the side clasps back (Diagram 6 – item 14); b) Remove the
protective film from the adhesive vinyl strip; c) Apply the film to the entire
upper part, folding the flaps, as indicated by the arrows – Diagram 9 (item
14); d) Replace the clasps. Note: The film is transparent, so that the
electrical layout of the device can be seen.
8. OPERATIONS
8.1 Access Menu Map
Press the Access key ;(short touch) to navigate through the menu functions.
Each press will display the next function in the series. To confirm press the
/key (short touch). The menu function map is
below:
SELECT FUNCTION
;
EXIT FUNCTIONS
;
TURN OFF CONTROL FUNCTIONS
;
DEFROST (ON/OFF)
;
LOCK FUNCTIONS
;
FAST FREEZING (ON/OFF)
;
VIEW PROCESSES
;
ECONOMIC SETPOINT (ON/OFF)
;
ADJUST DATE AND TIME
;
MANUAL MODE ON/OFF
;
SUPERHEATING SETPOINT
;
LIGHT
;
NORMAL SETTING
;
ECONOMIC SETPOINT
;
8.2 List of key functions The keys listed act as shortcuts for the following
functions:
/ Brief press: The current day, month, year, day of the week, hour and minutes
will be shown in sequence on the display.
/ Press for 2 seconds: Adjust the Setpoints < Brief press: Displays maximum
and minimum temperatures / pressures. < Press for 2 seconds: When displaying
saved information, wipes the entry. << Press for 4 seconds: Starts Manual
Defrost.
Press for 2 seconds: Stops warning alarms.
< Press for 4 seconds: Switches to displaying the measurements / processes
briefly.
; Enter the Access Menu ;< Press for 5 seconds: Turns off control functions.
<and Enters select function.
8.3 Basic Operation
8.3.1 Operation mode
To enter the setpoint adjustment menu, press / for 2 seconds. The message
[,,sp] will appear on the display, followed by the value for adjusting the
normal setpoint. Use the < or > keys to change the value and confirm by
pressing /. Next the message [SP-E] will be displayed showing that the
economic setpoint to be changed. Again, use the < or > keys to change the
value and confirm by pressing. Finally, the display will read [—-] to show
that configuration is complete. Setpoints can also be changed individually in
the access menu.
8.3.2 Economic Setpoint (SPE)
The [SP-E] uses more flexible parameters for controlling the temperature which
results in better energy savings ([F08] – Desired temperature – Economic
setpoint and [F12] – Switching differential – Economic setpoint (hysteresis)).
When it is activem the message [,ECO] is displayed, alternating with the
temperature and other messages. Economy mode can be activated or deactivated
using the commands:
Function
Command
[f15][f16][f17] [f18]
Time to come on Maximum temperature in economic mode
[f18]
Maximum temperature in economic mode = 0 (Off)
[f55]= [1] or [2] [f55]= [7] or [8] [f58] –
Indicates door is open (digital input) External key (digital input)
Time to activate after door is closed Determined by the Access Menu ([ECO,])
Error measuring ambient temperature (S1)
On switching on the instrument Fast Freezing
Ação
Activate Desactive Not dependent on time, only deactivated when door is opened
Keep turned off Activate / Deactivate Activate Activate / Deactivate Keep
turned off Deactivate Deactive
8.3.3 Manual defrost
The defrosting process can be activated / deactivated manually through the
access menu, using the
[defr]option or by pressing the < key for 4 secondds or by using an external
switch connected to
digital input ([F55] = 11 or 12). Activation or deactivation is indicated by
the message [defr][On,,]or [defr][OFF,]respectively.
8.3.4 How to determine when defrosting is complete using the
temperature
a) – Set the condition for starting defrosting as based on time, [F28] = 1; b)
– Reset the functions related to the end of defrosting to their maximum value:
– Refrigeration time (Interval between defrosting periods) [F29] = 9999min. –
Temperature of the Evaporator to finish the defrost [F44] = 105°C / 221°F –
Maximum time on defrost (for safety) [F46] = 999min. c) – Wait a while until a
layer of ice has formed on the evaporator. d) – Defrost manually (using the ;
key, go to [dEFr] and press / or press the < key for 4 seconds). e) – Monitor
it melting . f) – Wait until all the ice on the evaporator has melted to
determine when the defrosting is over. g) – When the defrosting has finished,
check the temperature in the evaporator (S2) using the >key (see item 8.3.9).
h) – Using the reading for S2, adjust the temperature to end the defrosting: –
Temperature of the evaporator to finish the defrost [F44]= Temp. S2 i) – As a
safety measure, reset the maximum defrost duration, according to the type of
defrosting set. Example: – Electric defrost (by resistance) [F46] = 45min. –
Hot gas defrost [F46] = 20min. j)- Finally, adjust the refrigeration time
(Interval between defrosts) [F29] to the desired value.
8.3.5 Fast Freezing
In fast freezing mode, the refrigeration output is permanently on and
therefore the refrigeration or freezing process is accelerated. This operating
mode can be activated or deactivated in the access menu, using option [Fast]
or an external switch connected to the digital input ([F55]= 9 or 10). It can
also be switched off automatically according to temperature [F19] or time
[F20]. While fast freezing is on, the connected compressor display will flash
rapidly and defrosting will continue. If, on activating the fast freezing
mode, the controller identifies that there is a defrost cycle programmed to
start during this period of time, the defrost will be run first and then it
will go into fast freezing mode.
8.3.6 Turn Light On /Off Using option [Lamp], in the access menu, it is
possible to turn the lamp on /off manually if the AUX output is configured as
a lamp ([F60]=1) and the defrosting of the tray is not configured to use the
AUX output([F36]= 2). Note: When switching on the lamp manually, the time for
when the lamp will be switched off after the door is closed [F59] will be
reset.
8.3.7 Adjust date and time The date and time can be adjusted using option
[ClO,], from the access menu. This option is accessed with the ;(Flatec) and
confirmed with the /key. In the date and time setting mode, use the
8.3.8 View date and time
By briefly pressing the /key (brief press), the date and time set on the
controller will be displayed. The current date ([,–d]),month ([,–m]), year
([,–y]), day of the week ([day-]), hour and minutes ([00:00]) will be shown in
sequence on the display.
Note: The controller leaves the factory with the clock disabled. To enable it
follow the directions in item
8.3.7 Example:[day1] equals Sunday.
8.3.9 View the stage of the process, the time elapsed and other
measurements The temporary display mode can be activated through the access
menu using option [Proc] or by pressing the > key for 4 seconds until the
message [Proc] is displayed. The message on the current process will alternate
with the length of time ([hh:mm]) that has elapsed for this stage.
Stages of the process: [init]- Initializing the Electronic Expansion Valve;
[dEL,]- Initial Delay (delay in starting up the instrument); [Fan,]- Fan-delay
(delay caused by the fan); [rEFr]- Refrigeration; [Pre,]- Pre-Defrost; [dEFr]-
Defrost; [dRAi]- Draining; [Off,]- Control Functions are turned off; [dVee]-
The instrument is in driver mode.
In this viewing mode, it is also possible to view other measurements (if
available) by pressing the > key or the < (short touch), depending on the
list:
[Proc] – Process stage and time taken; [t-1,] – Temperature from the ambient
sensor S1; [t-2,] – Temperature from the Evaporator sensor S2; [t-3,] –
Temperature from the Suction Line sensor S3; [tSat] – Saturation Temperature;
[Pres] – Pressure reading (before the amount of pressure is displayed, the
configured unit of pressure is shown:[Psi,]or[bar,]); [,SH,] – Superheating
Temperature; [Vee,] – Percentage that the Electronic Expansion Valve has been
opened. The message related to the chosen measure will alternate with the
measurement value. Note: This display will remain on the display for 15
minutes or until the / key or the ;(short touch). Note: In this mode, alarm
messages and the preferred display ([F75]) will be ignored.
8.3.10 Function Lock
The function lock provides some extra safety when using this device. When it
is enabled the normal and economic setpoints and other parameters can be
viewed, but are not able to be changed ([,f78]=2) or you can just lock the
device against changes to the control functions but allow the normal and
economic setpoints to be amendable ([,f78]=1). To block the functions, access
the [LOC,] option from the access menu using the ;(Flatec) key and confirm it
by pressing the /key. The message [no,,] will be displayed if the lock is
disabled. Now press and hold the > key for the time configured for this
function [,f79]. When enabled, the message [LOC,][On,,]will displayed. It can
only be enabled if the function [,f78] is set to 1 or 2. To disable the lock,
turn the controller off and on again with the > key pressed. Keep the key
pressed until the message [LOC,][OFF,] indicates that it has been unlocked (10
seconds). Note: Regardless of the values of [,F78] and [,F79] you are always
able to adjust the time and hour.
8.3.11 Turn off control Functions
Turning off the control functions allows the controller to be used as a
temperature / pressure indicator only, with the control outputs and alarms
off. This feature can be enabled or disabled using the function. Shutdown of
control functions [,F80]. When enabled, the control and alarm functions are
turned off ([CTRL][OFF,]) or turned on ([Ctrl][ON,,]) using the menu provided
by the option [Ctrl]. When the control functions are turned off, the message
[OFF,] will be displayed, alternating with the temperature and other messages.
It is also possible to switch off and on the control functions by pressing the
; for 5 seconds. Note: When restarting the control functions, the instrument
will go to the initial stage [init].
8.5 Table of Parameters
SUPEHEATING
Fun [,F01] [,F02] [,F03] [,F04] [,F05] [,F06] [,F07] [,F08] [,F09] [,F10] [,F11] [,F12] [,F13] [,F14] [,F15] [,F16] [,F17] [,F18] [,F19] [,F20] [,F21] [,F22] [,F23] [,F24] [,F25] [,F26]
Description
Access code Type of Application Superheating Setpoint Liquid Refrigerant Lower
Pressure Limit of the P1 transducer (Pressure at 4mA) Upper Pressure Limit of
the P1 transducer (Pressure at 20mA) Desired Temperature – Normal Setpoint
Desired Temperature – Economic Setpoint Minimum Setpoint allowed by the end
user Maximum Setpoint allowed by the end user Switching differential – Normal
setpoint (hysteresis) Switching differential – Normal setpoint (hysteresis)
Pump Down Pressure Maximum Time for Pump Down Time for Economic Mode to begin
(Monday to Friday) Time for Economic Mode to begin (Saturday) Time for
Economic Mode to begin (Sunday) Maximum temperature in economic mode Fast
Freezing Temperature Limit Maximum Fast Freezing time Minimum time for
compressor to be on Minimum time for the compressor to be off Length of time
the compressor is on, if there is an error from the S1 sensor Length of time
the compressor is off, if there is an error from the S1 sensor Control Action
if there is an error in the superheating sensors Delay time when powering up
the controller
REFRIGERATION
8.3.12 Record of maximum and minimum temperatures / pressures Pressing the <
key (short touch) during the temperature / pressure display, the message
[rEg,] will appear and then the minimum and maximum temperatures and pressure
recorded. Note: If the < key is pressed during the display of the records, the
values will be reset and the message [rsEt] will be displayed.
8.3.13 Selecting the temperature or pressure units To select the units that
the device will use, use function [,F01] with access code [,231] and press the
/ key. Next, select the required temperature unit [,=C,] or [,=F,] using the
8.4 Advanced Operations
8.4.1 Schedule Defrosting
You can configure the defrosting schedule to be equally distributed accross
the day by programming the number of defrost cycles per day. To do this, you
need to set the start of the defrosting as part of a defrosting schedule,
setting [F28] to 5, and configuring functions [F37] to [F42] to determine the
number of defrost cycles per day and their starting times. With this, the
defrost schedule makes it possible to create a program from Monday to Friday,
another program for Saturday and another for Sunday. Example: If the program
for Monday to Friday consists of a preferred time of 1 pm (and the number of
defrosting cycles is 4, with an interval of 6 hours), the defrost schedule
will operate at 1:00 am, at 7:00 am, at 1:00 pm and 7:00 pm on each day.
MONDAY TO FRIDAY
13:00
19:00
01:00
07:00
DEFROST
DEFROST
DEFROST
DEFROST
Note: If the condition for the start of the defrost cycle is set by the
defrosting schedule and the clock is not set or disabled, the start of the
defrost cycle will be based on time.
8.4.2 Electronic Expansion Valve in Manual Mode You can switch the mode of the
electronic expansion valve between manual and automatic, using the menu
provided by the [modE] option. In manual mode, the message [Man,]is displayed,
alternating with the temperature and other messages, and the electronic
expansion valve remains fixed in the position configured in ([C19]Initial
Valve Opening). In automatic mode, the controller checks the reading of the
temperature and pressure sensors and calculates the value of the valve opening
to ensure that the refrigeration system is a energy efficient as possible. In
manual mode, the controller keeps the position of the VEE fixed according o
the adjustment made.
8.4.3 Change the Parameters of the Controller The function menu can be
accessed through the access menu, option [Func] or by simultaneously pressing
Min 0 1 0,0 1
-14,5 -14,5 F09 F09 -50,0 F09 0,1 0,1 -14,5 (Off) 0(Off) 00:00 00:00 00:00 0(Off) -50,0 0(Off) 0(Off) 0(Off) 0(Off) 0(Off) 0(Off) 0(Off)
CELSIUS (°C)
Max Unit
999
–
20
–
50,0
°C
23
–
850,0
PSI
850,0
PSI
F10
°C
F10
°C
F10
°C
105,0
°C
20,0
°C
20,0
°C
F06
PSI
600
seconds
24:00(Off) hh:mm 24:00(Off) hh:mm
24:00(Off) hh:mm
999
minutes
60,0
°C
999
minutes
9999 seconds 9999 seconds
999
minutes
999
minutes
1(Man)
–
999
minutes
Standard 0 1 8,0 5
-14,5 174,0 -15,0 -10,0 -50,0 105,0 2,0 2,0 -14,5 (Off)
30 24:00(Off) 24:00(Off) 24:00(Off)
120
-25,0 300 0(Off) 0(Off) 20 10 1(Man) 0(Off)
Min
0 1 0,0 1 -1,0 -1,0 F09 F09 -58,0 F09 0,1 0,1 -1,0 (Off) 0(Off) 00:00 00:00
00:00 0(Off) -58,0 0(Off)
0(Off) 0(Off) 0(Off) 0(Off) 1(Off) 0(Off)
FAHRENHEIT (°F)
Max Unit
999
–
20
–
90,0
°F
23
–
58,6
BAR
58,6
BAR
F10
°F
F10
°F
F10
°F
221,0
°F
36,0
°F
36,0
°F
F06
BAR
600
seconds
24:00(Off) 24:00(Off) 24:00(Off)
hh:mm hh:mm hh:mm
999
minutes
140,0
°F
999 minutes
9999 seconds 9999 seconds
999 minutes
999
minutes
1(Man)
–
999
minutes
Standard 0 1
14,4 5 -1,0
12,0 5,0 14,0 -58,0 221,0 3,6 3,6 -1,0 (Off) 30 24:00(Off) 24:00(Off)
24:00(Off) 120
-13,0 300 0(Off) 0(Off) 20 10 1(Man) 0(Off)
DEFROST
FAN
Fun [,F27] [,F28] [,F29] [,F30] [,F31] [,F32] [,F33] [,F34] [,F35] [,F36] [,F37] [,F38] [,F39] [,F40] [,F41] [,F42] [,F43] [,F44] [,F45] [,F46] [,F47] [,F48] [,F49] [,F50] [,F51] [,F52] [,F53] [,F54] [,F55] [,F56] [,F57] [,F58] [,F59] [,F60] [,F61] [,F62] [,F63] [,F64] [,F65] [,F66] [,F67] [,F68] [,F69] [,F70] [,F71] [,F72] [,F73] [,F74] [,F75] [,F76] [,F77] [,F78] [,F79] [,F80] [,F81]
Description
Defrost type (0 = resistance / 1 = hot gas / 2 = natural) Condition for
starting Interval between defrosting periods if F28=1 or the Maximum time
without defrosting if F=28 2, 3 or 4 Additional time to the end of the first
refrigeration cycle if F28=1 Temperature of the evaporator (sensor S2) in
order to begin defrost if F28= 2, 3 or 4 Temperature Difference in order to
start defrosting (S1-S2) if F28= 3 or 4 Time to confirm the lower temperature
(sensor S2) to start the pre-defrost setting if F28=2, 3 or 4 Defrost when the
controller is powered on Smooth Defrost if F27=0 Enable Tray Defrost Number of
Defrostings per day (Monday to Friday) if F28=5 Time to start Defrost (Monday
to Friday) if F28=5 Number of Defrostings per day (Saturday) if F28=5 Time to
start Defrost (Saturday) if F28=5 Number of Defrostings per day (Sunday) if
F28=5 Time to start Defrost (Sunday) if F28=5 Length of pre-defrost
(collecting in gas) Temperature of the Evaporator (S2 sensor) to finish the
defrost Ambient temperature (S1 sensor) required to end the defrost Maximum
time on defrost (for safety) Draining time (from water collected from
defrosting) Fan operation mode Time fan is on if F48=0 or 4 Time fan is turned
off if F48=0 (automatic timed mode) Length of time door is open until fan is
turned off F55=1 or 2 Fan cut off due to high temperature in the evaporator
(S2 sensor) Temperature in the evaporator to switch the fan back on after
draining Maximum length of time until the fan is switched back on after
drainage (fan-delay) Function mode of the digital input Length of time door is
open for instant defrost if F55=1 or 2 Length of time door is open until fan
and compressor are turned off F55=1 or 2 Length of time door is closed until
economic mode is activated if F55=1 or 2 Length of time door is closed until
light is switched off is F55=1 or 2 and F60=1 AUX output mode Low ambient
temperature alarm (S1 sensor) High ambient temperature alarm (S1 sensor) Time
to confirm the alarm by room temperature (S1) Room temperature alarm delay
(power up) Length of time door is open to trigger alarm Maximum time
compressor can be on without reaching the setpoint Trigger for alarm when
defrosting is over based on time Enable buzzer Intensity of the digital filter
on the ambient temperature sensor (S1 sensor) (Rising) Intensity of the
digital filter on the ambient temperature sensor (S1 sensor) (Descending)
Displacement of the values from the ambient sensor (S1 sensor) Displacement of
the values from the evaporator sensor (S2 sensor) Displacement of the values
from the suction line sensor (S3 sensor) Displacement of the values (Offset)
for the pressure transducer P1 Preferred Indicator Ambient Temperature (S1
sensor) value locked in during defrosting Maximum length of time that the
temperature is locked during defrosting Function Lock Mode Function Lock
Period Shutdown of control functions Address of the instrument on the RS-485
network
DOOR
ALARMS
SENSORS
FUNCTIONS
Electronic Expansion Valve configuration functions (displayed if [F01] = 717)
Min 0
0(Off) 1
0(Off) -50,0 -50,0 0(Off) 0(Off) 10 0(Off)
1 00:00
1 00:00
1 00:00 0(Off) -50,0 -50,0
1 0(Off)
0 1 1 -1(Off) -50,0 -50,0 0(Off) 0(Off) 0(Off) 0(Off) 0(Off) 0(Off) 0 -50,0
-50,0 0(Off) 0(Off) 0(Off) 0(Off) 0(No) 0(Off) 0(Off) 0(Off) -20,0 -20,0 -20,0
-50 1 0 0(Off) 0 15 0(Off) 1
CELSIUS (°C)
Max Unit
2
–
5
–
9999 minutes
999
minutes
105,0
°C
105,0
°C
999
minutes
1(On)
–
100(Off)
–
2
–
12
–
23:59 hh:mm
12
–
23:59 hh:mm
12 23:59
hh:mm
999
minutes
105,0
°C
105,0
°C
999
minutes
999
minutes
4
–
999
minutes
999
minutes
9999 seconds
105,0
°C
105,0
°C
999
minutes
12
–
999
minutes
999
minutes
999
minutes
999
minutes
2
–
105,0
°C
105,0 999
°C minutes
999
minutes
999
minutes
999
hours
1(Yes)
–
1(On)
–
20
seconds
20
seconds
20,0
°C
20,0
°C
20,0
°C
50
PSI
7
–
2
–
999
minutes
2
–
60
seconds
2
–
247
–
Standard 0 1 240
0(Off) -20,0 15,0 10 1(On) 100(Off) 0(Off)
4 06:00
4 06:00
4 06:00 0(Off) 30,0
20,0 30 1 4 2 8 0 50,0 2,0 1 2 30 5 0(Off) 2 1 -50,0 105,0 0(Off) 10 5
0(Off) 1(Yes) 0(Off) 0(Off) 0(Off)
0,0 0,0 0,0 0 1 1 15 0 15 0(Off) 1
Min
0 0(Off)
1 0(Off) -58,0 -58,0 0(Off) 0(Off)
10 0(Off)
0 00:00
0 00:00
0 00:00 0(Off) -58,0 -58,0
1
0(Off) 0 1 1
-1(Off) -58,0 -58,0 0(Off) 0(Off) 0(Off) 0(Off) 0(Off) 0(Off)
0 -58,0 -58,0 0(Off) 0(Off) 0(Off) 0(Off) 0(No)
0(Off) 0(Off) 0(Off) -36,0 -36,0 -36,0 -3,4
1 0 0(Off) 0 15 0(Off) 1
FAHRENHEIT (°F)
Max Unit
2
–
5
–
9999 minutes
999
minutes
221,0
°F
221,0
°F
999
minutes
1(On)
–
100(Off)
–
2
–
12
–
23:59 hh:mm
12
–
23:59 hh:mm
12 23:59
hh:mm
999
minutes
221,0
°F
221,0
°F
999 minutes
999
minutes
4
–
999
minutes
999
minutes
9999 seconds
221,0
°F
221,0
°F
999
minutes
2
–
999
minutes
999 minutes
999
minutes
999
minutes
2
–
221,0
°F
221,0 999
°F minutes
999
minutes
999
minutes
999
hours
1(Yes)
–
1(On)
–
20
seconds
20
seconds
36,0
°F
36,0
°F
36,0
°F
3,4
BAR
7
–
2
–
999
minutes
2
–
60
seconds
2
–
247
–
Standard 0 1 240
0(Off) -4,0 59,0 10 1(On) 100(Off) 0(Off) 4 06:00 4 06:00 4 06:00 0(Off) 86,0
68,0 30 1 4 2 8 0 122,0 35,6 1 0 30 5 0(Off) 2 1 -58,0 221,0 0(Off) 10 5
0(Off) 1(Yes) 0(Off) 0(Off) 0(Off)
0,0 0,0 0,0 0,0 1 1 15 0 15 0(Off) 1
ELECTRONIC EXPANSION VALVE
Fun [,F01] [,c01] [,c02] [,c03] [,c04] [,c05] [,c06] [,c07] [,c08] [,c09] [,c10] [,c11] [,c12] [,c13] [,c14] [,c15] [,c16] [,c17] [,c18] [,c19] [,c20] [,c21]
Description Access code Controller in Driver mode Enable Internal Energy Backup (IEB) Proportional Increase (Kp) Integral Time (Ti) Derivative Time (dT) Setpoint – LoSH Protection (Low superheating) Integral Time (Ti) – Low Superheating Protection Setpoint – LOP Protection (Low evaporation temperature) Integral Time (Ti) LOP Protection (Low evaporation temperature) Setpoint – MOP Protection (High evaporation temperature) Integral Time (Ti) – MOP Protection (High evaporation temperature) Time to verify the protection alarms (LoSH, LOP, MOP) State of the compressor in the event of protection alarms being triggered (ASHL, ALOP, AMOP) Time until the compressor switches on again after protection alarms are triggered (ASHL, ALOP, AMOP) Total number of steps for the valve Operating Speed (steps per second) Minimum Valve Opening Maximum Valve Opening Initial Valve Opening Time valve is used after initial opening Time valve is used after initial opening after defrosting
Min 0
0(Off) 0(Off) 1,0 0(Off) 0(Off) 0,0
1 -50,0(Off)
1 c08 1 0(Off) 0 0(Off) 20 25 0,0 c17 c17 0(Off) 0(Off)
CELSIUS (°C)
Max Unit
999
–
1(On)
–
1(On)
–
100,0
–
500
seconds
500
seconds
F03
°C
500
seconds
c10
°C
500
seconds
105,0(Off) 500 9999
°C seconds seconds
7
–
999
minutes
550
–
90 steps/ sec.
c18
%
100,0
%
c18
%
300
seconds
3000 seconds
Standard 0
0(Off) 1(On) 10,0 200 0(Off)
4,0 20 -50,0(Off) 20 105,0(Off) 20 60 0 3 500 30 0,0 100,0 50,0 20 0(Off)
Min 0
0(Off) 0(Off) 1,0 0(Off) 0(Off) 0,0
1
-58,0(Off) 1 c08 1
0(Off) 0
0(Off) 20 25 0,0 c17 c17
0(Off) 1
FAHRENHEIT (°F)
Max Unit
999
–
1(On)
–
1(On)
–
100,0
–
500 seconds
500 seconds
F03
°F
500 seconds
c10
°F
500
seconds
221,0(Off) 500 9999
°F seconds seconds
7
–
999
minutes
550
–
90 steps/sec.
c18
%
100,0
%
c18
%
300 seconds
3000 seconds
Standard 0
0(Off) 1(On) 10,0 200 0(Off)
7,2 20 -58,0(Off) 20 221,0(Off) 20 60 0 3 500 30 0,0 100,0 50,0 20 0(Off)
8.5.1 Description of the Parameters
F01 – Access Code: This is required to change the settings of the parameters.
This code does not need to be entered to view the adjusted parameters. Allows
you to enter the access codes provided: [,123]- Enables you to change the
table parameters; [,231]- Enables you to configure the units of measurement
for temperature and pressure; [,717]- Enables you to change the settings for
the parameters of the electronic expansion valve.
F02 – Type of application: It allows you to choose the type of application
that the device will control. Pre-programmed values for the PID control of the
electronic expansion valve are loaded, according to the chosen option: [,,,1]
– Cold chamber – slow performance; [,,,2] to [,,20] – Reserved.
F03 – Superheating Setpoint: This is the reference value for control of
superheating. Superheating indicates how much vapor is over the saturation
temperature (boiling point) at a given pressure. A pressure transducer in the
suction line and a temperature sensor are required at the evaporator outlet
(useful) or at the compressor inlet (total). Superheating = Suction
temperature – satured vapor temperature (fluid curve).
F04 – Liquid refrigerant: Allows you to choose which refrigerant will be used
in the superheating calculation/; [,,,1]- R22 [,,,2]- R32 [,,,3]- R134A
[,,,4]- R290 [,,,5]- R404A [,,,6]- R407A [,,,7]- R407C [,,,8]- R407F [,,,9]-
R410A [,,10]- R422A [,,11]- R422D [,,12]- R427A [,,13]- R441A [,,14]- R448A
[,,15]- R449A [,,16]- R450A [,,17]- R452A [,,18]- R507A [,,19]- R513A [,,20]-
R600A [,,21]- R744 [,,22]- R1234YF [,,23]- R1234ZE (E)
F05 – Lower Pressure Limit of the P1 transducer (Pressure at 4mA): The
pressure on the pressure sensor when it has a current of 4mA at its output.
F06 – Upper Pressure Limit of the P1 transducer (Pressure at 20mA): The
pressure on the pressure sensor when it has a current of 20mA at its output.
F07 – Desired Temperature – Normal Setpoint: It is the control temperature of
the normal operating mode. When the temperature of the S1 sensor (ambient) is
lower than the value set for this function the compressor will be turned off.
F08 – Desired Temperature – Economic Setpoint: It is the control temperature
when the economic operating mode is on. When the temperature of the S1 sensor
(ambient) is lower than the value set for this function the compressor will be
turned off.
F09 – Minimum setpoint allowed by the end user: F10 – Maximum setpoint allowed
by the end user: Limits set in order to avoid excessivelt high or low
temperatures being accidentally set for the temperature setpoint, which could
lead to high energy consumption by keeping the system on continuously.
F11 – Switching differential – Normal setpoint (hysteresis): F12 – Switching
differential – Economic setpoint (hysteresis) This is the temperature
difference between switching off and restarting refrigeration in economic
operating mode.
F13 – Pump Down pressure : When reaching the temperature setpoint ([F07] or
[F08]), the compressor will not be turned off if the pressure on the P1
transducer is higher than the value set for this function. Instead it will
remain on until the pressure reduces this value. This function can be turned
off by setting it to the minimum value [OFF,].
F14 – Maximum Time for Pump Down: This is the maximum time that the compressor
will remain on during the Pump Down process (for safety). After this period
the compressor is switched off. If this function is set to a minimum value off
0 [OFF,], the compressor will be turned off only if the pressure on the P1
transducer is less than [F13]. Note: In the event of an error in the S1
ambient temperature or the P1 transducer pressure sensor, the Pump Down
feature will be disabled.
F15- Time for Economic Mode to begin (Monday to Friday): Time when the
economic setpoint [SP-E] will be activated on working days. This function can
be turned off by setting it to the maximum value [OFF,].
F16- Time for Economic Mode to begin (Saturday) Time when the economic
setpoint[SP-E] will be activated on Saturdays.. This function can be turned
off by setting it to the maximum value [OFF,].
F17 – Time for Economic Mode to begin (Sunday): Time when the economic
setpoint [SP-E] will be activated on Sundays. This function can be turned off
by setting it to the maximum value [OFF,].
F18 – Maximum temperature in economic mode: Allows you to set the maximum
length of time economy mode will operate for. After this time, the setpoint
returns to economy mode in normal operation. If this is set to [OFF,] this
time will be ignored.
F19 – Fast Freezing Temperature Limit: This is the minimum temperature that
the instrument can reach during the Fast Freezing process.
F20 – Maximum Fast Freezing time: This the duration of the Fast Freezing
process.
F21 – Minimum time for compressor to be on: This is the minimum amount of time
the compressor will be on, i.e. The period of time between the last section
and the next time it is stopped. This helps to avoid power surges from the
electricity grid.
F22 – Minimum time for compressor to be off: This is the minimum amount of
time the compressor will be off, i.e. The period of time between the last time
it stops and the next section. This helps to relieve the discharge pressure
and increases the working life of the compressor.
F23 – Length of time the compressor is on, if there is an error with the
ambient S1 sensor: F24 – Length of time the compressor is off, if there is an
error with the ambient S1 sensor: If the ambient sensor (S1 sensor) is
disconnected or goes out of the measurement range, the compressor will switch
on or off according to the parameters set in these functions.
F25 – Control Action if there is an error in the superheating sensors: [OFF,]
– Control turned off. Keeps the electronic expansion valve closed and all
control outputs off, except the AUX output if it is configured as an alarm
output. [Man,] – Keeps the expansion valve set to the position configured in
(C19 – Initial Valve Opening) and all control outputs operate normally.
F26 – Delay time when powering up the controller: When the instrument is
turned on, it can remain disabled for a while, delaying the start of the
process. During this time, it only works as a temperature / pressure gauge.
Helps to avoid high demands for power, when power returns after a power cut,
where several pieces of equipment are all on the same connection. Therefore,
you can set different times for each device. This delay can relate to the
compressor or defrosting (where defrosting is part of the sequence)
F27 – Defrost type (0=coils / 1 = hot gas / 2 = natural): [,,,0] – Electrical
Defrosting (using coils), which only applies to the defrost outlet. [,,,1] –
Hot Gas Defrosting, which only applies to the compressor and defrosting
outlets. [,,,2] – Natural defrosting, which only applies to the fan outlet.
F28 – Condition for starting defrosting: [Off,] – No automatic defrosting,
only manual defrosting; [,,,1] – Set time to start defrosting; [,,,2] – Set
temperature to start defrosting; [,,,3] – Set temperature difference (S1-S2)
to start defrosting; [,,,4] – Set temperature and temperature difference
(S1-S2) to start defrosting; [,,,5] – Schedule Defrosting.
F29 – Interval between defrosting periods if F28=1 or the Maximum time without
defrosting if F28=3 or 4: It determines how often and after how long
defrosting take place, based on the time of the last defrosting. If the
controller is configured to defrost according to temperature ([F28]= 2, 3 or
4), this time acts as a level of safety in situations in which the evaporator
temperature (S2 sensor) does not reach the values programmed in [F31] or
[F32]. This function determines the maximum time that the controller will wait
before carrying out defrosting.
F30 – Additional time to the end of the first refrigeration cycle if [F28] =
1: This is to set a longer period of time for the first refrigeration cycle.
Where there are setups with several pieces of euipment, you can avoid high
demand peaks by ensuring that defrosting takes place at different times by
assigning different values to this function.
F31 – Temperature of the evaporator (S2 sensor) in order to begin defrosting
if F28=2, 3 or 4. When the temperature of the evaporator (S2 sensor) reaches a
value using this function, the controller will wait for the length of time
before beginning defrosting.
F32 – Temperature Difference in order to start defrosting (S1-S2) if F28=3 or
4. When the difference between the temperature of the ambient sensor (S1
sensor) and the temperature of the evaporator (S2 sensor) reaches a value
using this function, the controller will wait for the length of time before
beginning defrosting.
F33 – Time to confirm the lower temperature (sensor S2) to start the pre-
defrost setting if F28=2, 3 or 4 If the controller is configured to defrost
according to temperature, the moment the temperature reaches the set value, it
will run a delay before starting the pre-defrost stage. If the temperature
remains low, while this stage is running, the pre-defrost process is started.
If it doesn’t and the temperature rises above the set value, the system will
return to a refrigeration cycle.
F34 – Defrost when the controller is powered on This enables a defrosting to
be conducted when the controller is powered on. For example, when the
electricity returns after a power cut.
F35 – Smooth Defrost if F27=0: Smooth Defrost mode provides a smoother
defrosting, saving energy and preventing the ambient temperature from rising
as much as in a standard defrost. In this mode, the defrost output remains on
as long as the evaporator temperature (S2 sensor) is less than 2°C (35.6°F)
and, after passing that temperature, the output remains on for the percentage
of time configured in this function, within a 2minute period.
F36 – Enable Tray Defrost: [OFF,]- Deactives Tray Defrosting; [,,,1]-
Defrosting the tray using the FAN outlet; [,,,2]- Defrosting the tray using
the AUX outlet; The chosen output acts as a second defrosting output. This
output is activated during the pre-defrost, defrost and drain periods. The
functionality related to the control of this output (FAN or AUX) will be
disregarded.
F37 – Number of Defrostings per day (Monday to Friday) if F28=5 Defrosting is
set to take place at equal intervals according to the number programmed per
day, always taking preferred times into account. It can be adjusted using
values of 1, 2, 3, 4, 6, 8 or 12. This function is to program this for Monday
to Friday.
F38 – Time to start Defrost (Monday to Friday) if F28=5 Enables the preferred
start time of one of the daily defrost cycles to be adjusted. This function is
to program this for Monday to Friday.
F39 – Number of Defrostings per day (Saturday) if F28=5 Defrosting is set to
take place at equal intervals according to the number programmed per day,
always taking preferred times into account. It can be adjusted using values of
1, 2, 3, 4, 6, 8 or 12. This functions is to program this for Saturday
F40 – Time to start Defrost (Saturday) if F28 = 5: Enables the preferred start
time of one of the daily defrost cycles to be adjusted. This function is to
program this for Saturday.
F41 – Number of Defrostings per day (Sunday) if F28=5: Defrosting is set to
take place at equal intervals according to the number programmed per day,
always taking preferred times into account. It can be adjusted using values of
1, 2, 3, 4, 6, 8 or 12. This function is to program this for Sunday.
F42 – Time to start Defrost (Sunday) if F28=5 Enables the preferred start time
of one of the daily defrost cycles to be adjusted. This function is to program
this for Sunday.
F43 – Length of pre-defrost (collecting in gas): When the defrost starts, the
controller will only use the fan during this time, in order to take advantage
of the residual energy of the gas.
F44 – Temperature of the Evaporator (S2 sensor) to finish the defrost: If the
temperature in the evaporator (sensor S2) reaches the set value, the defrost
cycle will be halted, i.e. Temperature controlled. This way it improves the
defrosting process.
F45 – Temperature of the Ambient Sensor (S1 sensor) to finish the defrost: If
the ambient temperature (sensor S1) reaches the set value, the defrost cycle
will be halted, i.e. Temperature controlled.
F46 – Maximum time on defrost (for safety): This function adjusts the maximum
duration of a defrost cycle. If the defrosting is not complete, during this
period, according to the temperature, a dot will begin flashing in the lower
right corner of the display (if it’s enabled in [F67]), indicating that the
time set for the defrost has ended by the required temperature has not been
reached. This can happen when the temperature set is too high, the time limit
is insufficient, the S2 sensor is disconnected or it isn’t in contact with the
evaporator.
F47 – Draining time (from water collected from defrosting): Time required for
removing excess water, i.e. for the last drops of water to drain from the
evaporator. During this period, all outputs remain switched off. This function
can be turned off by setting it to the minimum value [OFF,].
F48 – Fan operation mode: [,,,0]- Automatic according to time: the fan will be
on when the compressor is on. When the compressor is off, the fan will
oscillate according to the times set in [F49] and [F50]; [,,,1] – Automatic
according to temperature: When the compressor is switched on, the fan stays
on. With the compressor off, the fan turns on when the temperature is higher
than the setpoint + 60% of the hysteresis and turns off when the temperature
is lower than the setpoint + 20% of the hysteresis; [,,,2]- Continuous: the
fan is always on; [,,,3] – Dependent: the fan operates together with the
compressor; [,,,4] – For a period of time after the compressor is turned off:
after turning off the compressor, the fan will remain on for the time set in
[F49]. Note1: Modes 0 and 1 will only switch the fan on if the temperature of
the S2 sensor is lower than the temperature of the S1 sensor. Note2: Mode 1
will activate the fan only if the temperature of sensor S2 is lower than the
configured setpoint.
F49 -Time fan is on if F48=0 or 4 This is how long the fan is on for.
F50 – Time fan is turned off if F48=0 (automatic timed mode): This is how long
the fan is off for.
F51 – Length of time door is open until fan is turned off F55=1 or 2: This is
the length of time that the fan will continue to run after the door is opened.
If you set a minimum value of [OFF,], the fan will not switch off if the door
is opened. If you set a value of r [,,,0], the fan will switch off immediately
if the door is opened.
F52 – Fan cut off due to high temperature in the evaporator (S2 sensor): This
is intended to disconnect the evaporator fan when the ambient temperature is
not within the design range for the refrigeration device, avoiding high
temperatures and suction pressures that could damage the compressor. If the
evaporator temperature exceeds the set value, the fan is turned off and will
be restarted at a fixed hysteresis of 2 ° C (3.6 ° F). This is a useful
function to use when, for example, a refrigerator is used that has been idle
for days or when restocking units or counters with products.
F53 – Temperature in the evaporator to switch the fan back on after draining:
After drainage is complete, it starts a fan-delay cycle. The compressor will
start up immediately, because the temperature in the evaporator is high, but
the fan will only start after the temperature in the evaporator falls below
the set value. This function is used to remove the heat in the evaporator
after a defrost cycle, to ensure it is not opened up immediately to the
ambient temperature.
F54 – Maximum length of time until the fan is switched back on after drainage
(fan-delay): For safety, if the temperature in the evaporator does not reach
the value set by function [F53] or the S2 sensor is disconnected, the fan will
only come on after the time set for this function has expired.
F55 – Function mode of the digital input: [,,,0] – Digital Input deactivated;
[,,,1] – NO Contact: Door Sensor; [,,,2] – NC Contact: Door Sensor; [,,,3] –
NO Contact: External Alarm; [,,,4]- NC Contact: External Alarm; [,,,5] – NO
Contact: Switch off the Control System; [,,,6] – NC Contact: Switch off the
Control System; [,,,7] – NO Pulsator: Economic Mode; [,,,8] – NC Pulsator:
Economic Mode; [,,,9] – NO Pulsator: Fast Freezing; [,,10] – NC Pulsator: Fast
Freezing; [,,11]- NO Pulsator: Defrosting; [,,12]-NC Pulsator: Defrosting.
Note: With the instrument operating in driver mode (c01 = [On,,]), the digital
input will be automatically configured as an external signal input
(compressor) in order to enable the electronic expansion
valve.ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd Obs: In
options 5 and 6, the Sitrad supervisory system has priority over the digital
input. Thus, if Sitrad sends a command to turn on / off the control functions,
the digital input is temporarily disabled and a transition in its state will
be necessary to enable it again.
F56 – Length of time door is open for instant defrost if F55=1 or 2: If the
door is kept open for a period longer than that defined in this function,
instant defrosting will take place, as long as the temperature in the
evaporator (S2 sensor) is less than [F44] and the ambient temperature (S1
sensor) is less than [F45].
F57 – Length of time door is open until fan and compressor are turned off
F55=1 or 2: For safety, if the door remains open longer than the time set
here, both the compressor and fan will be switched off.
F58 – Length of time door is closed until economic mode is activated if F55= 1
or 2: With the door closed, this parameter defines how long until economic
mode is activated. Setpoint is switched to the economic setpoint.
F59 – Length of time door is closed until light is switched off if F55= 1 or 2
and F60=1: With the door closed, this parameter defines how long it will be
until the lamp is turned off. Helps save electricity. With this function set
to the minimum value [OFF,], all functions related to lamp activation are
ignored and the output remains off.
F60 – AUX output mode: [,,,0] – Output switched off; [,,,1] – Light switching;
[,,,2] – Alarm switching. Note: If it is set up as an alarm switch, the AUX
output will be turned on in the event of the following alarms: open door, high
/ low ambient temperature, compressor on without reaching the setpoint,
external alarm (digital input), low superheating, MOP, LOP, Internal Energy
Backup error or error in the electronic expansion valve.
F61 – Low ambient temperature alarm (S1 sensor): This is the ambient
temperature (S1), below which the instrument will trigger the low temperature
alarm. The differential for switching off the alarm is set in 0.1 ° C / 0.1 °
F. During the Fast Freezing operation, the low temperature alarm is
deactivated. When this process is over it is reactivated when the temperature
is no longer within the range of the alarm.
F62- High ambient temperature alarm (S1 sensor): This is the ambient
temperature (S1), above which the instrument will trigger the temperature
alarm. The differential for the alarm to switch off is fixed at 0.1 ° C / 0.1
° F. This alarm takes into account the temperature shown on the display and is
therefore determined by the temperature reading locked during the defrost
cycle [F76].
F63- Time to confirm the alarm by room temperature (S1): This is the length of
time, during which the ambient temperature alarm (low or high) will be
inactive, even if the conditions exist to trigger it.
F64- Room temperature alarm delay (power up): During this time the alarm
remains off while waiting for the system to go back to an operating mode. The
(low or high) ambient temperature alarms are enabled after this time has
elapsed or the setpoint temperature has been reached.
F65- Length of time door is open to trigger alarm: When the door is opened,
the message [Open] appears on the display and the door open timer starts. If
this time is longer than the time that is set for this function, the alarm
will be triggered
F66- Maximum time compressor can be on without reaching the setpoint: The
alarm is triggered if the compressor remains on without reaching the setpoint,
for a longer time than the length specified in this function.
F67-Trigger for alarm when defrosting is over based on time: When the defrost
cycle has been running for the length of time set, but has not reached the
temperature set, the user is notified via a flashing dot in the lower right
corner of the display ([,,,.]).
F68- Enable Buzzer: Enables or disables the internal buzzer to sound alarms.
F69- Intensity of the digital filter on the ambient temperature sensor (S1
sensor) (Rising): F70- Intensity of the digital filter on the ambient
temperature sensor (S1 sensor) (Descending): The value set by these functions
represents the time (in seconds) in which the temperature may vary 0.1ºC / 0.1
° F either up or down.
Note: A typical use for this type of filter is in freezers for ice cream and
frozen foods. When the door is opened, a quantity of hot air will fall
directly on the sensor, causing a rapid rise in the temperature reading and,
often, activating the compressor unnecessarily.
F71- Displacement of the values from the ambient sensor (S1 sensor): F72-
Displacement of the values from the evaporator sensor (S2 sensor): F73-
Displacement of the values from the suction line sensor (S3 sensor): F74-
Displacement of the values (Offset) for the pressure transducer P1: This
allows you to compensate for possible deviations in the reading of the sensor
/ transducer, due to changing the sensor or changing the cable length.
F75-Preferred Indicator: Sets a preference for what is shown on the display:
[,,,1] : Temperature from the ambient sensor S1; [,,,2] : Temperatura do
sensor do evaporador S2; [,,,3] : Temperature from the Suction Line sensor S3;
[,,,4] : Pressure; [,,,5] :Superheating Temperature; [,,,6] : Percentage that
the Electronic Expansion Valve has been opened; [,,,7] : Current Setpoint
Value (normal or economic). Note 1: When the device is operating in driver
mode (c01=[On,,]), options 1,2 and 7 must not be selected, otherwise the
message [info] will be shown on the display, indicating that it is not
possible to view any information.
F76- Ambient Temperature (S1 sensor) value locked in during defrosting: [,,,0]
: Temperature Reading from the ambient sensor S1 [,,,1] : Reading locked in –
last temperature before defrosting [,,,2] : Display “[deFr]” This function is
intended to prevent the display reflecting an increase in the ambient
temperature due to defrosting.
F77- Maximum length of time that the temperature is locked during defrosting:
During a defrost cycle, either the last temperature measured during the
refrigeration cycle or the message [deFr] will be kept on the display. The
display will be released when the temperature shown is reached again or the
time set for this function has been exceeded, after the start of the next
refrigeration cycle (whichever comes first). If set to the value [Off,], the
temperature display will be frozen only while defrosting.
F78- Function Lock Mode: Enables and configures the Function Lock (see item
8.3.10). [,,,0]: Function Lock can’t be enabled [,,,1]: Partial lock can be
enabled, whereby the control functions are locked but the setpoint can still
be adjusted. [,,,2]: Functions can be completely locked.
F79- Function Lock Period: Sets the time in seconds after the command that the
functions will be locked. [,,15]- [,,60] Time in seconds after the command
that the functions will be locked.
F80- Turns Off Control Functions: Allows the control functions to be turned
off (see item 8.3.11). [Off,] : Does not allow the control functions to be
turned off. [,,,1] : Only allows control functions to be turned on or off if
the functions are unlocked. [,,,2] : Allows control functions to be turned on
or off even if the functions are locked.
F81- Address of the instrument on the RS-485 network: Address of the
instrument on the RS-485 network that enables it to communicate with the
Sitrad software. Note: You may not have any device on the network with the
same address.
Electronic Expansion Valve configuration functions [c01] to [c21] (displayed
if [F01]= 717)
C01- Controller is in Driver mode: [Off,]: The device is responsible for
controlling temperature, alarms and superheating. [On,,]: The device is only
controlling superheating and alarms. When Driver mode is active, the device
turns off the temperature control functions and only controls superheating and
alarms. When the device is turned on, the COMP output will be activated,
indicating that the controller has been powered on. The FAN output will be
turned on after the controller initialization stage, which indicates that the
device is ready to receive an external signal for the electronic expansion
valve to begin controlling superheating. A signal (digital input) from an
external controller activates the electronic expansion valve, which will then
control superheating. The DEFR output will be activated when the instrument
receives an external signal and the electronic expansion valve is ready to
control superheating. The AUX output will be activated if the following alarms
go off: low superheating, MOP, LOP, Internal Energy Backup error or error in
the activation of the electronic expansion valve. Note: When DRIVER mode is
on, only the VEE indication LED can be activated.
C02- Enable Internal Energy Backup (IEB): [Off,] :The Internal Energy Backup
(IEB) is not being used. You must therefore use a solenoid valve to ensure the
fluid line is closed if there is a power cut. [On,,] :The internal energy
backup system (IEB) will be available, which helps by closing the electronic
expansion valve if there is a power cut.
C03- Proportional Increase (Kp): Determines the proportional increase based on
the PID Control Algorithm.
C04- Integral Time (Ti): Determines the Integral Time based on the PID Control
Algorithm.
C05- Derivative Time (dT): Determines the Derivative Time based on the PID
Control Algorithm.
C06- Setpoint – LoSH Protection (low superheating): When the superheating
temperature is below this value, the low superheat alarm will gradually close
the electronic expansion valve (VEE). Note: Hysteresis for the parameter is
set 1°C (1,8°F).
C07- Integral Time (Ti) – Low Superheating Protection: Time required to
correct the difference between the recorded superheating and its setpoint
value, when the stabilized superheating temperature is below the LoSH
protection setpoint (value defined by [,C06].
C08- Setpoint – LOP Protection (Low evaporation temperature): When the evaporation temperature is below this value, the electronic expansion valve (VEE) will gradually open to increase the evaporation temperature of the system. This process will continue until the evaporation temperature reaches the value set by this function.
C09- Integral Time (Ti) – LOP Protection (Low evaporation temperature): Time required to correct the difference between the recorded superheating and its setpoint, as a constant value, when the stabilized evaporation temperature is below the LOP protection setpoint.
C10- Setpoint – MOP Protection (Low evaporation temperature): When the evaporation temperature is above the value set for this function, the controller will gradually close the electronic expansion valve (VEE) to keep the evaporation temperature below the set value. This is intended to ensure that when superheating is very low, liquid does not flow back into the compressor.
Note: Hysteresis for the parameter [,,C8] and [,C10] is set 2°C (3,6°F).
C11- Integral Time (Ti) – MOP Protection (Low evaporation temperature): Time required to correct the difference between the recorded superheating and its setpoint, as a constant value, when the stabilized evaporation temperature is above the MOP protection setpoint.
C12- Time for checking the protection alarms (LoSH, LOP, MOP): This is the length of time, during which the protection alarm (LoSH, LOP, MOP) will be inactive, even if the conditions exist to trigger it.
C13- State of the Compressor in the event of protection alarms being triggered
(ASHL, ALOP,
AMOP): [,,,0]- Compressor will not switch off when ASHL, ALOP or AMOP alarms
are triggered; [,,,1]- Compressor will switch off when ASHL alarm is
triggered; [,,,2]- Compressor will switch off when ASHL or ALOP alarm is
triggered; [,,,3]- Compressor will switch off when ASHL or AMOP alarm is
triggered; [,,,4]- Compressor will switch off when ALOP alarm is triggered;
[,,,5]- Compressor will switch off when ALOP or AMOP alarm is triggered;
[,,,6]- Compressor will switch off when AMOP alarm is triggered; [,,,7]-
Compressor will switch off when either the ASHL, ALOP or AMOP alarms is
triggered.
C14-Time until the compressor switches on again after protection alarms are
triggered (ASHL,
ALOP, AMOP):
This is the length of time that the compressor remains off after an alarm is
triggered, according to the defined option [c13].
C15- Total number of steps for the valve: This functions sets the specific number of steps that the electronic expansion valve (EEV) will use.
C16- Operating Speed (steps per second): This functions sets the operating speed according to the specifications of the electronic expansion valve (EEV).
C17- Minimum Valve Opening: This is the smallest percentage that the electronic expansion valve will open.
C18- Maximum Valve Opening: This is the largest percentage that the electronic expansion valve will open.
C19- Initial Valve Opening: This function defines the percentage that the electronic expansion valve will open when control begins.
C20- Time valve is used after initial opening: This is the maximum time that the electronic expansion valve will be opened as set in the [c19] function.
C21-Time valve is used after initial opening after defrosting: This is the
maximum time that the electronic expansion valve will be opened as set in the
[c19] function, after a defrost cycle.
9. PID CONTROLLER
The PID controller is made up of a combination of three control actions:
Proportional action (P), Integral action (I) and Derivative action (D). Each
action receives a weighting (adjustable via parameters) which represents a
gain or adjustment time. This enables the PID to perform better when
controlling the process. Any control action is limited by the quality and
capacity of the existing actuators in the process. P – Proportional gain (Kp)
– The use of proportional action in a control system enables the difference
(error) between the desired output (reference, setpoint) and the current value
of the process, to be reduced. The proportional gain speeds up process’s
response, however, the increased gains can result in control oscillating. I –
Integral time (Ti) – The integral action has an energy storage function, which
allows it to remove the error between the reference and the output. It
accumulates the error at a ” Ti ” rate, and attempts to reduce it to zero. Low
Ti values can cause the control to oscillate, however, long Ti times tend to
slow down the process. Integral action must not be used on its own. D –
Derivative time (Td) – The use of derivative action enables the process’s
response time to be increased and reduces oscillation, as it tries to
anticipate the process’s behavior. Low Td values tend to reduce oscillation
SUMMARY TABLE – GENERAL GUIDANCE*
PID PARAMETER
OVERSHOOT (peakl)
STABILIZATION
TIME (delay in stabilizing the
controller)
ERROR (The difference between the setpoint and the sensor)
Increase KP**
Increase
Little Effect
Reduce
Reduce Ti
Increase
Increase
Null error
Increase Td
Reduce
Reduce
No effect
Note: Change the parameters individually, check the response and then modify another parameter. Proceed with caution, use Sitrad Pro to monitor the behavior of the process, analyze and modify the control parameters. * This guide is widely applied in the technical literature on PID controllers, however processes with latency in their response may differ from the indication in the table. The technician responsible for the process must correct small deviations manually. ** In specific applications, the behavior can be opposite to that indicated.
10. WARNINGS / ALARMS / ERRORS 10.1 Warnings
[oPEn] Door open
[PrES]
Pressure reading (before the amount of pressure is displayed, the configured unit of pressure is shown: Psi or Bar)
[,SH,]
Superheating Temperature
[UEE,]
Percentage that the Electronic Expansion Valve has been opened
[t-1,]
Temperature sensor 1
[t-2,]
Temperature sensor 2
[t-3,]
Temperature sensor 3
[tSAt]
Saturation Temperature
[ECO,]
Operating on the Economic Setpoint
[ClO,]
Adjust / View the date and time
[DEFr]
Temperature locked on defrosting cycle
[,,,,.]
Indicates that the final defrosting temperature has not been reached
[inFo] @Flashing Led
$ Led piscante [Man,]
Information unavailable – check the parameter. Preferred indicator (see
parameter [F75]) Tray is defrosting – pre-defrost and draining stages
Fast Freezing Mode Indicated
The Electronic Expansion Valve is operating in Manual Mode
[8888]
The Electronic Expansion Valve is closed as there is no electricity
[LOC,][On,,] Function Lock [LOC,][OFF,] Functions Unlocked [Off,]
Control functions off
10.2 Alarms
[AoPn]
Open door alarm
[Athi]
High ambient temperature alarm
[atLO] [Alrc] [inib]
Low ambient temperature alarm
Alarm because the compressor is on and has not reached the setpoint Audible
alarm deactivated
[Alre]
Digital input alarm (external alarm)
[ASHL]
Low superheating alarm
[AlOp]
Low evaporation temperature alarm
[AmoP]
High evaporation temperature alarm
10.3 Errors
[Ert1] [Ert2] [Ert3] [ErP1] [ErSH] [EClO] [EiEb] [ECAl] [PPPP] [ErUE]
Error in temperature sensor 1
Error in temperature sensor 2
Error in temperature sensor 3
Error in the pressure transducer
Error in the superheating calculation
Clock not set
Error in the Internal Energy Backup (IEB) system
Contact Full Gauge
Reset function values Error with the Electronic Expansion Valve. To clear the
error it is necessary to swicth off and swicht on the controller to restart
the unit. (* Also please check coil valve if wiring connections are properly
connected or if are connected).
11. GLOSSARY
– °C: Temperature in degrees Celsius. – °F: Temperature in degrees Fahrenheit
– Defr (defrost): Defrosting – LOC: Locked. – No: No. – OFF: Turned Off /
Deactivated – ON: Turned On / Activated. – Refr: Refrigeration. – SET: set or
configure. – EEV: Electronic Expansion Valve
12. CONNECTING CONTROLLERS, RS-485 SERIAL INTERFACE AND COMPUTER
®
Keep Sitrad update at
®
website: http://www.sitrad.com.br
Video on installing Sitrad cab be downloaded at:
http://www.fullgauge.com.br/ videos/treinamentos-sitrad
A
A
B
B
AB
A
A
B
B
AB
BA
RS-485 Network
A
A
B
B
AB
A
A
B
B
AB
BA
BA
CONV. 32 or
CONV. 256
External link
Earth
MT-530 super
Instrumento
MT-530 super
WIRING BLOCK FOR SERIAL COMMUNICATIONS It is used to connect more than one device to the Interface. The wires must be connected as follows: Terminal A of the device is connected to terminal A of the wiring block, which in turn, must be connected to terminal A of the Interface. Repeat the process for terminals B and , being the cable loop (optional
ground). The cash dispenser terminal must be connected to the respective
terminals of each instrument.
Sold separately
13. OPTIONAL ITEMS – SOLD SEPARATELY
RS-485 Serial Interface Hardware used to connect Full Gauge Control devices to Sitrad®.
EasyProg – version 2 or higher This is an accessory, whose main function is to
store the parameters of the controllers. You can load new parameters from a
controller at any time, and download them to a production line (from the same
controller), for example. It has three types of connection for loading or
clearing parameters: – Serial RS-485: Connect it to the controller using the
RS-485 network (only controllers that can access RS-485). – USB: If connected
to the computer by a USB port, it can use Sitrad’s Program Editor. – Serial
TTL: The controller can connect directly to
EasyProg by a Serial TTL connection.
IMPORTANT
IN ORDER TO COMMUNICATE WITH EASYPROG, THE EQUIPMENT MUST NOT BE LINKED TO
SITRAD SOFTWARE.
EASYPROG
Extended Panel
Full Gauge Controls extended panel allows controllers to be installed in
Evolution and Ri lines, whose maximum size is 76x34x77mm (the opening must
measure 71x29mm for the extended panel to be installed), as the opening does
not need to be precise for the device to be properly installed. The panel has
space to be branded with the company logo and contact information, and it has
10A switches (250 V ac) that can be used for switching on internal lighting,
ventilation or fan systems.
14. ANNEXES – Reference Diagrams
Diagram V
X
CONTROLLER
PANEL
DIAGRAM VI
CONTROLLER
Y PANEL
CLASPS
To ensure it is properly and safely installed, connect all leads before putting the controller in position.
15. WARRANTY
ENVIRONMENTAL INFORMATION Packaging: Full Gauge products use packaging made
from entirely recycled materials. Please dispose of it through specialized
recyclers.
Product: The components used in Full Gauge controllers can be recycled and
reused if they are dismantled by specialists.
Disposal: Do not burn or throw controllers in the domestic waste, once they
have reached the end of their working life. Follow the current legislation
applicable to your area in relation to disposing of electronic waste. If you
have any questions, contact Full Gauge Controls.
WARRANTY – FULL GAUGE CONTROLS
Products manufactured by Full Gauge Controls, from May 2005, have a warranty period of 10 (ten) years direct from the factory and 01 (one) year from accredited retailers, starting from the consignment date on the sales invoice. After this year, the warranty will continue to be honored for purchases from retailers if the device is sent directly to Full Gauge Controls. This period is valid in Brazil. Other countries provide a guarantee for 2 years. The products are guaranteed in the event of a manufacturing fault that makes them unsuitable or inappropriate for the uses to which they were intended. The warranty is limited to the maintenance of devices manufactured by Full Gauge Controls, regardless of any other form of costs, such as any indemnity due to damage caused to other equipment.
WARRANTY EXCEPTIONS
The Warranty does not cover transport and / or insurance costs for sending products believed to have defects or to have malfunctioned to Technical Support. The following events are also not covered: natural wear of parts, external damage caused by falls or improper packing of products.
LOSS OF COVER The product will automatically no longer be covered if: -The instructions for use and assembly contained in the technical description and installation procedures listed in the NBR5410 standard are not observed; – It is subjected to conditions beyond the limits specified in its technical description; – If it is opened up or repaired by a person who is not part of Full Gauge’s technical team; – The damage which has taken place was the result of a fall, blow or impact, water damage, electrical surge or atmospheric discharge.
USING THE WARRANTY
To take advantage of the warranty, the customer must send the product properly packed, together with the
corresponding purchase invoice, to Full Gauge Controls. The delivery cost for the product is borne by the client. You will
also need to send as much information as possible regarding the defect that has been detected, thus making it possible to
streamline the analysis, testing and servicing.
These processes and any eventual maintenance of the product will only be carried out by Full Gauge Controls’ Technical
Support, at the Company’s head office – Rua Júlio de Castilhos, 250 – Zip Code 92120-030 – Canoas – Rio Grande do Sul –
Brazil.
Rev. 03
Copyright 2021 Full Gauge Controls All rights reserved
Refrigerated Solutions Group 891 County Road U Hudson, WI 54016
800-955-5253 Norlake Foodservice Sales
800-477-5253 Norlake Scientific Sales
800-388-5253 Norlake Parts/Service
800-647-1284 Master-Bilt Sales
800-684-8988 Master-Bilt Parts/Service
Email: rsgservice@refsg.com
PN: 219828 REV 3/22
References
Read User Manual Online (PDF format)
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