Evco EVJ 700 User guide

EVCO S.p.A. EVJ 700 Thawing | Installer manual ver. 1.0 | Code 144J795E104
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EVJ 700 Thawing
Controllers for thawing cabinets
ENGLISH
INSTALLER ANUAL ver. 1.0
CODE 144J795E104

EVCO S.p.A. EVJ 700 Thawing | Installer manual ver. 1.0 | Code 144J795E104
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Important
Read this document care ully be ore installation and be ore using the device and take all the prescribed precautions.
Keep this document with the device or uture consultation.
Only use the device in the ways described in this document. Do not use the device as a sa ety device.
Disposal
The device must be disposed o according to local regulations governing the collection o electrical and electronic
equipment.

EVCO S.p.A. EVJ 700 Thawing | Installer manual ver. 1.0 | Code 144J795E104
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Contents
1 INTRODUCTION ......................................... 4
1.1 Product description ..................................... 4
1.2 Models available and hardware eatures ........ 5
2 INSTALLATION........................................... 6
2.1 Format eatures ......................................... 6
2.2 Measurements and installation ..................... 6
2.3 Electrical connection ................................... 8
3 OPERATING THE DEVICE ............................. 9
3.1 Initial switch-on ......................................... 9
3.2 Power outage ............................................ 9
3.3 Silencing the buzzer ................................... 9
4 DISPLAY ................................................. 10
4.1 Keys ....................................................... 10
4.2 Function icons ......................................... 11
4.3 Status icons ............................................ 12
5 SETTINGS ............................................... 13
5.1 Initial in ormation .................................... 13
5.2 Languages .............................................. 13
5.3 I/O status ............................................... 13
5.4 Parameters ............................................. 14
5.5 Restore parameters .................................. 14
5.6 Real time clock ........................................ 14
6 FUNCTIONS ............................................. 15
6.1 Initial in ormation .................................... 15
6.2 Time-controlled thawing and preservation ... 15
6.2.1 Selection and start-up o time-controlled
cycles ...................................................... 15
6.2.2 Time-controlled cycle management ..... 16
6.3 Temperature-controlled thawing and
preservation ..................................................... 18
6.3.1 Selection and start-up o temperature-
controlled cycles ............................................ 18
6.3.2 Temperature-controlled cycle
management ................................................. 19
6.4 Quick setting o thawing and preservation
values ............................................................. 21
6.5 Viewing in ormation on the cycle in progress 22
7 MANAGING THE LOADS ............................. 23
7.1 Alarm ..................................................... 23
7.2 Compressor ............................................. 23
7.3 Thawing heaters ...................................... 23
7.4 On/stand-by ............................................ 24
7.5 Cabinet light ............................................ 24
7.6 Evaporator ans ....................................... 24
7.7 De rost heaters ........................................ 24
7.8 Auxiliary relay .......................................... 24
7.9 Managing loads with active digital inputs ..... 24
8 CONFIGURATION PARAMETERS .................. 25
9 ALARMS .................................................. 33
9.1 Alarms .................................................... 33
10 ACCESSORIES ......................................... 36
10.1 Programming key ................................. 36
10.2 TTL/RS-485 signal conversion module ..... 36
10.3 TTL/RS-485 signal conversion + clock
module .......................................................... 36
10.4 EVlinking BLE module ........................... 36
10.5 EVlinking Wi-Fi TTL module .................... 37
10.6 EV3 Web IoT Gateway........................... 37
11 TECHNICAL SPECIFICATIONS .................... 38
11.1 Technical data ...................................... 38

EVCO S.p.A. EVJ 700 Thawing | Installer manual ver. 1.0 | Code 144J795E104
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1INTRODUCTION
1.1 Product description
EVJ 700 Thawing is a controller or thawing cabinets. It has ive relays which can be con igured to meet users’ needs
and are also available in the sealed version, so can be used with re rigerant gases with reduced environmental impact
(such as R290).
The thawing cycles can be time- or temperature-controlled (using a needle probe) and automatically go to the holding
phase. Each o the two operating modes has our pre-set programmes which are accessed rom the display, allowing
users to customise thawing and preservation setpoints or the loads quickly and easily, preventing the development o
bacteria and ensuring only the highest quality and sa ety standards.
The display can be con igured to show the current values or the setpoints set or cabinet temperature, needle probe
temperature ( or temperature-controlled cycles) and countdown ( or time-controlled cycles). A status bar indicates i a
thawing cycle is running and a buzzer sounds to signal the end o the cycle. Alarms are also signalled with visual
messages and sounds.
The controller has a built-in user inter ace with a 2.8 inch colour graphic display, 6 capacitive keys and an IP65 ront
with a continuous sur ace. It can be itted to the panel in the conventional way, built into the ront, or concealed under
the panel (i made o glass or methacrylate), ensuring high cleaning and hygiene standards.
Users can interact remotely with their equipment using the EPoCA® cloud plat orm with Wi-Fi or Ethernet connectivity
(which also enables alternative or parallel control through MODBUS TCP). Onsite, they can interact rom a mobile
device with the EVconnect® app which uses Bluetooth Low Energy connectivity. For more details, compare all the
connectivity options in the Technical Data table and consult the Management and Monitoring Products/Systems and
the Connectivity Products/Devices sections o our website.

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1.2 odels available and hardware features
The table below shows the technical eatures o the model available and the purchasing code.
EVJ795N9VX3 EVJ795N9VXC
Power supply
115...230 Vac • •
Analogue inputs (configurable)
Pb1: de ault cabinet probe (PTC/NTC) • •
Pb2: de ault needle probe (PTC/NTC) • •
ulti-purpose analogue/digital inputs (configurable)
Pb3: de ault evaporator probe (PTC/NTC) or id2: de ault disabled • •
Digital inputs
id1: door switch • •
Digital outputs (configurable)
k1: de ault compressor 30 A 30 A (HC)
k2: de ault thawing heaters 8 A 8 A (HC)
k3: de ault de rost heaters 8 A 8 A (HC)
k4: de ault evaporator an 5 A 5 A (HC)
k5: de ault auxiliary output 5 A 5 A (HC)
Communications ports
TTL MODBUS • •
Connectivity
RS-485 MODBUS RTU (optional through the EVlinking RS-485 module) • •
Bluetooth Low Energy or EVconnect app (optional through the EVlinking
BLE module) • •
Wi-Fi EPoCA/MODBUS TCP (optional through the EVlinking Wi-Fi module
powered by controller) • •
Ethernet EPoCA/MODBUS TCP (optional through EV3 Web gateway) • •
Other features
Alarm buzzer • •

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2INSTALLATION
2.1 Format features
The controller is available in a compact version with a plastic housing and holding laps.
The user inter ace has a 2.8 inch colour graphic display, 6 capacitive keys and an IP65 ront.
2.2 easurements and installation
Measurements
Panel, rom the ront
CAUTION:
The metal panel must be between 0.8 and 1.5 mm (1/32 and 1/16 in) thick, while the plastic panel must be between
0.8 and 3.4 mm (1/32 and 1/8 in).

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Under glass or methacrylate panel
CAUTION:
- the glass panel must have a maximum thickness o 4.0 mm (3/16 in), while the methacrylate panel must be no
thicker than 2.0 mm (1/16 in)
- the panel and the material used to carry out screen printing must not contain conductive substances
- keep the device and the panel at a temperature o between 15 and 38 °C (59 and 100 °F) or about an hour be ore
carrying out the installation
- be ore installation, care ully clean the panel sur ace that will be in contact with the double-sided adhesive tape,
making sure that the product used or cleaning is suitable or the panel material (we recommend using
isopropyl alcohol, in the case o sur aces greased with a hydrocarbon solvent). Continue cleaning with a
cloth until it is clean and dry a ter use
- during installation, apply uni orm and constant pressure or about 30 seconds on the panel sur ace in contact with
the double-sided adhesive tape. Then leave the device and the panel in a horizontal position or about
48 hours at a temperature o between 15 and 38 °C (59 and 100 °F).
Installation precautions
- ensure that the working conditions or the device (operating temperature, humidity, etc.) are within the
set limits. See section 10 “TECHNICAL SPECIFICATIONS”
- do not install the device close to heat sources (heaters, hot air ducts, etc.), equipment with a strong
magnetic ield (large di users, etc.), in places subject to direct sunlight, rain, damp, excessive dust,
mechanical vibrations or shocks.
- any metal items close to the control module must be at a su icient distance so as not to compromise the
sa ety distance; any cabling must be placed at least 2 cm away
- in compliance with sa ety regulations, the device must be installed properly to ensure adequate
protection rom contact with electrical parts. All protective parts must be ixed in such a way as to need
the aid o a tool to remove them.

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2.3 Electrical connection

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3OPERATING THE DEVICE
3.1 Initial switch-on
Connect the device to the power supply: a neutral system loading screen will be presented:
Once loading is complete, the device will go back to the mode it was in be ore being powered down, namely:
- to the Home screen with no power outage message;
- the cycle in progress with the POWER OUTAGE message indicating that there has been a loss o power.
3.2 Power outage
I there is a power outage with no unction in progress, when power is restored the device will return to the mode set
be ore the ailure occurred.
I the power supply ails while a unction is active, when power is restored the device will behave as ollows:
- i a thawing cycle was running, it will resume rom where it was interrupted;
- i a preservation cycle was running, the cycle will continue with the same settings.
3.3 Silencing the buzzer
The buzzer can be programmed to signal an alarm and the end o a thawing cycle (i Pbu = 2) or to signal an alarm
only (i Pbu = 1). The buzzer can be silenced by pressing any unction key; i not silenced manually, the buzzer will
sound until the activation interval set by parameter E4 ( or end o cycle) and A13 ( or alarm) has elapsed.
I Pbu = 0, the buzzer will never be activated, irrespective o the settings o E4 and A13. Even i Pbu ≠ 0, the buzzer
will not sound i the respective activation intervals (E4 and A13) are set to 0.

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4DISPLAY
4.1 Keys
There are six capacitive touch keys at the bottom o the user inter ace; each key activates di erent unctions
depending on the navigation level or the unction currently running. The unctions o each o the our central keys
are indicated by the icon displayed above it (see the next section “Function icons”).
KEY FUNCTION
On/O key
- Go rom stand-by to On and vice versa
- Go back to the previous menu in all pages (settings, cycles, menus)
Run key
- Con irm a selection
- Start up a cycle a ter selecting it
- Holding down the key when the device is in stand-by opens the settings “menu” page
Function key
- Activates the unction indicated by the icon above it (a description o the unction icons is given
in the next section)

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4.2 Function icons
ICON DESCRIPTION
Select the time-controlled thawing cycle
Select the temperature-controlled thawing cycle (needle probe)
Select cycle options (loads), each one with personalised cabinet temperature
con igurations (as well as duration in time-controlled cycles and needle temperature in
temperature-controlled cycles)
Set the initial cabinet temperature
Set the inal cabinet temperature
Set the preservation temperature
Set duration ( or time-controlled cycles)
Set the inal temperature setpoint o the needle probe ( or temperature-controlled
cycles)
Increase values (quick pre-start-up settings, parameters, passwords, date/time)
Scroll through the options on the “menu” page
Decrease values (quick pre-start-up settings, parameters, passwords, date/time)
Scroll through the options on the “menu” page
Con irm the set value (quick pre-start-up settings, parameters, passwords, date/time)
In the “parameters” option on the “menu” page, touch the key once to change the
parameter
Con irm the option selected on the “menu” page
Activate/deactivate an auxiliary output
View in ormation about the cycle in progress
Force the arrest o the cycle in progress
View the type o alarm in progress (i placed above a key)
Remove the alarm in progress signal

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4.3 Status icons
ICON DESCRIPTION
Heaters on (only i a cycle is running)
Compressor on (only i a cycle is running)
De rost in progress
Fans on (only i a cycle is running)
Temperature unit o measurement
Time-controlled cycle mode
Temperature-controlled cycle mode
Alarm in progress
Cycle progress bar o : no cycle running
Cycle progress bar lashing: cycle running
Cycle progress bar stays on: cycle completed

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5SETTINGS
5.1 Initial information
The list o settings is accessed by pressing the key on the stand-by screen or 3 seconds.
5.2 Languages
The choice o languages consists o Italian, English, French, German, Spanish, Portuguese, Simpli ied Chinese,
Traditional Chinese and Russian.
5.3 I/O status
The input and output status menu is shown below.
To go back to the previous screen rom this menu, press the key.

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5.4 Parameters
To view the parameters, irst enter the password -19 (which can be changed using parameter PAS) rom the menu
using the key. To change the value o a parameter, select the parameter and press to edit it; con irm any
changes by pressing the key again.
For a complete list o parameters with their respective labels, descriptions and values (de ault, minimum and
maximum), see section 8 “CONFIGURATION PARAMETERS”.
5.5 Restore parameters
Access the MENU using the key, select RESTORE PARAMETERS and press . Enter the password 149 and press
to con irm.
5.6 Real time clock
The REAL TIME CLOCK option on the menu is displayed only i the device is connected to accessories modules with a
clock through the TTL port.
When the key is pressed, the 2 digits indicating the year start to lash. The value can be set by using the
keys and then con irmed by pressing the key. Continue using this procedure to complete the changes. Once the
date and time have been set, you will be returned to the previous menu a ter 50 seconds o inactivity or by pressing
the key.

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6FUNCTIONS
6.1 Initial information
The device is able to manage the ollowing cycles:
- time-controlled thawing and preservation
- temperature-controlled thawing (with needle probe) and preservation
To select the mode, go to the Home page by pressing the On/O key rom the stand-by page.
6.2 Time-controlled thawing and preservation
6.2.1 Selection and start-up of time-controlled cycles
Select the time-controlled cycle on the Home page by pressing either o the two keys on the le t next to the
icon.
A page will appear with:
-status icons at the top or the temperature unit o measurement and type o thawing and a status bar which
is not lit up (no cycle running);
-our numbers at the bottom which indicate the thawing options available (each one with di erent temperature
and time con igurations);
-the inal cabinet setpoint and duration o the selected cycle in the centre.

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To select a cycle, press the key relating to it and to start up the cycle, press the Run key. The following screen will
appear:
While the cycle is running, the screen displays the cabinet temperature (if E6 0) or the final cabinet setpoint (if E6 1)
and the countdown to the end of the cycle. The status bar will flash until the end of the countdown, then it will stay
on and the device will automatically go into preservation mode.
Depending on the configuration of parameter E4, the end of the thawing cycle may be signalled by the buzzer (E4 ≠ 0),
which is silenced by pressing any one of the six function keys, or when the set interval elapses (E4 1÷240 seconds). If
E4 -1, the buzzer will sound continuously until it is silenced by pressing a key.
The cycle in progress may be stopped any time be ore the countdown ends by pressing the key.
6.2.2 Time-controlled cycle management
In time-controlled thawing mode, the three values loaded by the controller or each option are de ined as ollows:
Time-controlled cycle
options Initial cabinet setpoint Final cabinet setpoint Cycle duration
Option 1 r0 r8 r20
Option 2 r1 r9 r21
Option 3 r2 r10 r22
Option 4 r3 r11 r23

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These three parameters will be used to de ine the working cabinet setpoints and the duration o the thawing cycle
which is divided equally into our phases ollowing on rom each other as shown:
- phase 1 working setpoint = initial setpoint
- phase 2 working setpoint = phase 1 setpoint - [(initial setpoint – inal setpoint) / 4]
- phase 3 working setpoint = phase 2 setpoint - [(initial setpoint – inal setpoint) / 4]
- phase 4 working setpoint = phase 3 setpoint - [(initial setpoint – inal setpoint) / 4]
The cycle terminates when the set duration ends and each phase terminates when the relative setpoint is reached or
the duration ends.
At the end o the time-controlled thawing cycle, the device goes into preservation mode with the setpoint set by
parameter r26 and or in inite duration.
set 1 = initial setpoint
set 2 = inal setpoint
START
0
Thawing Duration
C o n s e rv a t i o n
SET2
SE T1
SE T1
S ET 1
SET 2
SET2
4
t
h L
o
a
d B
a
n
d D
u
r
a
t
i
o
n
3rd Load Band Duration
2nd Load Band Duration
S ET 1
S ET2
1st Load Band Duration
Setpoint
Cabinet
S ET
3
Five parameters are used to manage the ventilation (F13, F14, F15, F16 respectively or the our phases and F17 or
preservation). The parameters de ine an operation as either continuous or in parallel with the compressor/thawing
heater.
De rost cycles cannot be carried out during thawing, whereas automatic de rost (at intervals set by parameter) is
possible during the post-de rost preservation phase.
I the door is opened, the machine will operate according to the value o parameter i0.

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6.3 Temperature-controlled thawing and preservation
6.3.1 Selection and start-up of temperature-controlled cycles
Select the temperature-controlled cycle (with needle probe) on the Home page by pressing either o the two keys
on the right next to the icon.
A page will appear with:
-status icons at the top or the temperature unit o measurement and type o thawing selected and a status
bar which is not lit up (no cycle running);
-our numbers at the bottom which indicate the thawing options available (each one with di erent cabinet
temperature and needle temperature con igurations);
-the inal cabinet setpoint and inal needle probe setpoint o the selected cycle in the centre.
To select a cycle, press the key corresponding to it and to start up the cycle, press the Run key. The ollowing
screen will appear:

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While the cycle is running, the screen displays the cabinet temperature and the needle probe temperature (i E6 = 0)
or the inal cabinet and needle probe setpoints (i E6 = 1). The status bar will continue lashing until the inal needle
probe setpoint is reached, then it will stay on and the device will automatically go into preservation mode.
Depending on the con iguration o parameter E4, the end o the thawing cycle may be signalled by the buzzer (E4 ≠ 0),
which is silenced by pressing any one o the six unction keys, or when the set interval elapses (E4 = 1÷240 seconds).
I E4 = -1, the buzzer will sound continuously until it is silenced by pressing a key.
The cycle in progress may be stopped any time by pressing the key.
6.3.2 Temperature-controlled cycle management
In temperature-controlled thawing mode, the our values loaded by the controller or each option are de ined as
ollows:
Temperature-
controlled cycle
options
Initial
cabinet
setpoint
Final cabinet
setpoint
Initial needle probe
temperature
Final needle probe
temperature
Option 1 r4 r12 Current value r16
Option 1 r5 r13 Current value r17
Option 1 r6 r14 Current value r18
Option 1 r7 r15 Current value r19
These values are used to regulate the temperature o the cabinet and needle probe. The duration o the thawing cycle
will be divided equally into our phases ollowing on rom each other as shown:
Initial needle probe temperature (value detected by the controller when cycle starts up) -22°C
Final needle probe setpoint (set by parameter or quick pre-start-up settings): 2°C
Initial cabinet setpoint (set by parameter or quick pre-start-up settings): 26°C
Final cabinet setpoint (set by parameter or quick pre-start-up settings): 10°C
1. The controller detects the initial temperature o the needle probe and calculates as ollows:
(INITIAL NEEDLE PROBE TEMPERATURE - FINAL NEEDLE PROBE TEMPERATURE) / 4
-22 – 2 = -24/4 = 6°C
2. The controller veri ies the di erence between the initial and inal cabinet temperature and calculates as
ollows:
(INITIAL CABINET TEMPERATURE - FINAL CABINET TEMPERATURE) / 4
26 – 10 = 16/4 = 4 °C
This means that, when the temperature detected by the needle probe rises 6 °C, the cabinet setpoint will all 4 °C and
the controller will move on to the next phase. This continues until the ourth phase which ends the cycle when the inal
needle probe setpoint is reached.
At the end o the temperature-controlled thawing cycle, the device goes into preservation mode with the setpoint set
by parameter r26 and or in inite duration.

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set 1 = in itial setpoint
set 2 = inal setpoint
START
0
Needle Temperature
C o n s e r va t i o n
SET 2
SE T1
SE T1
S ET1
S ET 2
SE T2
4
t
h L
o
a
d B
a
n
d D
e
l
t
a
3rd Load Band Delta
2nd Load Band Delta
S ET1
S ET 2
1st Load Band Delta
Setpoint
Cabinet
S ET
3
S ET 3 SET3
SET 3 SET3
set 3 = inal needle setpoint