Pego VISION Series User manual

Use and maintenance manual
ELECTRICAL BOARDS FOR REFRIGERATING INSTALLATIONS
READ AND KEEP
REV. 02-18
ENG
VISION 2PLT
ENGLISH

VISION 2PLT
Pag. 2
Rev. 02-18
USE AND MAINTENANCE MANUAL
REV. 01/04

VISION 2PLT
Pag. 3
Rev. 02-18
USE AND MAINTENANCE MANUAL
INTRODUCTION
Pag. 4 1.1 General
Pag. 5 1.2 Product ID codes
Pag. 5 1.3 Overall dimensions
Pag. 5 1.4 Identification data
INSTALLATION
Pag. 6 2.1 Important information for installer
Pag. 6 2.2 Standard assembly and use kit
Pag. 7 2.3 Installation
FUNCTIONS
Pag. 8 3.1 Functions managed by the VISION 2PLT
TECHNICAL CHARACTERISTIC
Pag. 9 4.1. Technical characteristics
Pag. 10 4.2 Warranty terms
DATA PROGRAMMING
Pag. 11 5.1 Panel layout
Pag. 11 5.2 Keypad functions
Pag. 12 5.3 LCD display
Pag. 13 5.4 General
Pag. 13 5.5 Key to symbols
Pag. 14 5.6 Setting and displaying the set-points
Pag. 14 5.7 Probes value display
Pag. 14 5.8 Level 1 programming
Pag. 15 5.9 List of Level 1 variables
Pag. 16 5.10 Level 2 programming
Pag. 17 5.11 List of Level 2 variables
Pag. 20 5.12 Switching on the VISION 2PLT electronic controller
Pag. 20 5.13 Compressor activation/deactivation conditions
Pag. 20 5.14 Configurations
Pag. 20 5.15 Single set-point with double system
Pag. 20 5.16 Double set point
Pag. 21 5.17 Defrost management
Pag. 21 5.18 Heater defrost, with temperature control
Pag. 22 5.19 Hot gas defrosting
Pag. 22 5.20 Operating mode
OPTIONS
Pag. 23 6.1 TeleNET monitoring / supervision system
DIAGNOSTICS
Pag. 24 7.1 Diagnostics
ATTACHMENTS
Pag. 26 A.1 EU declaration of conformity
Pag. 27 A.2 100N MASTER3 connection layout
CONTENTS
CHAP. 1
CHAP. 2
CHAP. 3
CHAP. 4
CHAP. 5
CHAP. 7
CHAP. 6

VISION 2PLT
Pag. 4
Rev. 02-18
USE AND MAINTENANCE MANUAL
GENERAL
The electronic controllers of the VISION series have been designed to control static or
ventilated cold rooms.
The VISION 2 PLT electronic panel allows the user to control all the components on a
refrigeration unit equipped with a double system. The panel allows the user to control the
essential components of a refrigeration system with up to two compressors, a double
evaporator (fans and defrosting elements) and a cold room light.
The double evaporator is controlled separately with a double defrosting sensor and it’s
possible to set different start times for defrost the evaporators. It’s possible to insert a
secondary environment probe to ensure the proper functioning of the system in case of
failure of the main room sensor.
APPLICATIONS:
-Control static or ventilated cold rooms with double system.
MAIN FEATURES:
-Backlit LCD display.
-Clock and date.
-Temperature with decimal point.
-Password lock keys.
-Management of two separate evaporators (start cyclic or time set).
-Double room sensor management for operation in critical situations.
-Room light control.
-Management of heater defrost, with temperature control.
-Management of hot gas defrost (with or without basin resistance).
-Management of compressor rotation (for a similar aging).
1.1
CHAPTER 1: INTRODUCTION
CHAP. 1 - Introduction

VISION 2PLT
Pag. 5
Rev. 02-18
USE AND MAINTENANCE MANUAL
PRODUCT ID CODES
VISION 2PLT Controller for cold storage cell with double
system.
OVERALL DIMENSIONS
Dimensions in mm
DENTIFICATION DATA
The unit described in this manual has, on its side, an ID plate showing all the relevant
identification data:
• Name of Manufacturer
• Code and model of the unit
• Serial number
• Date of production
• Power supply voltage
1.3
1.4
CHAP. 1 - Introduction
1.2
100N MASTER3 2PLT
VISION 2PLT

VISION 2PLT
Pag. 6
Rev. 02-18
USE AND MAINTENANCE MANUAL
IMPORTANT INFORMATION FOR THE INSTALLER
1. Install the device in places where the protection rating is observed and try not to
damage the box when drilling holes for wire/pipe seats.
2. Do not use multi-polar cables in which there are wires connected to inductive/power
loads or signalling wires (e.g. probes/sensors and digital inputs).
3. Do not fit power supply wiring and signal wiring (probes/sensors and digital inputs) in
the same raceways or ducts.
4. Minimise the length of connector wires so that wiring does not twist into a spiral shape
as this could have negative effects on the electronics.
5. Fit a general protection fuse upstream from the electronic controller.
6. All wiring must be of a cross-section suitable for relevant power levels.
7. When it is necessary to make a probe/sensor extension, the wires must be of the
correct cross-section, which in any case must be at least 1mm2. The extension or
shortening of the probes could alter the factory calibration, then proceed to checkout
and calibration by means of an external thermometer.
STANDARD ASSEMBLY AND USE KIT
The VISION 2PLT electronic controller is supplied with the following assembly and
utilisation items:
• N° 4 NTC temperature probes;
• N° 1 telephone plug cable (KCVTELPL8/5);
• N° 1 user’s manual;
• N° 1 consolle VISION 2PLT (200VISION2PLT);
• N° 1 100N MASTER3 (200100NMSTH3);
CHAPTER 2: INSTALLATION
CHAP. 2 - Installation
2.1
2.2

VISION 2PLT
Pag. 7
Rev. 02-18
USE AND MAINTENANCE MANUAL
INSTALLATION
Fig. 1: Position the 100N MASTER3
module on the DIN guide and close the 2
lower hooks to lock it on the same.
Fig. 2: Fix the VISION 2PLT console
using the two screws to be inserted in the
slots underneath the keys frame.
Fig. 3: VISION 2PLT console perforation
template.
CHAP. 2 - Installation
2.3

VISION 2PLT
Pag. 8
Rev. 02-18
USE AND MAINTENANCE MANUAL
FUNCTIONS CONTROLLED BY THE VISION 2PLT
-Display and adjustment of room temperature.
-Display of evaporator 1 and evaporator 2 temperature.
-Display of ambient 1 and ambient 2 temperature.
-System control activation/deactivation.
-Operation with single set-point and control of two motor condensing units with delays
between the two parameter-set starts.
-Compressor rotation (to make wear uniform).
-Operation with double set point for gradual application of refrigerating power.
-System warnings (ambient ½ temperature sensor error, min-max temperature alarms,
compressor 1 and compressor 2 safety devices, man in room alarm, different probe
values alarm).
-Evaporator 1 and evaporator 2 fan control.
-Automatic/manual defrost control (static, with elements, with elements with temperature
control, cycle inversion and cycle inversion with basin).
-Clock for real time clock defrosting of the two evaporators simultaneously or separately
(even where defrosting cycle is set simultaneously the end-of-defrost temperature and
control of fan start delay on the two evaporators are independent).
-Room light can be switched on with on-panel key or door switch.
-Alarm relay.
-Management twin probe security environment. If the room sensor 1 is faulty alarm is
signaled and the reference sensor control changes automatically.
-Functionality password to control access to different levels of programming.
-Operation in emergency mode if all ambient probes are faulty.
-Air recirculation management.
CHAP. 3 - Functions
CHAPTER 3: FUNCTIONS
3.1

VISION 2PLT
Pag. 9
Rev. 02-18
USE AND MAINTENANCE MANUAL
-
TECHNICAL CHARACTERISTICS
Power supply
Voltage
230 V~ 10% 50/60Hz
Max. power absorption (only electronic control)
~ 8 VA
Climatic conditions
Working temperature
-5 ÷ +50 °C
Storage temperature
-10 ÷ +70 °C
Relative humidity
Below 90% Hr
General characteristics
Type of sensors that can be connected
NTC 10K 1%
Resolution
0,1 °C
Sensor read precision
± 0,5 °C
Read range
-45 ÷ +99 °C
Output characteristics
Description
Installed relay
Output board characteristics
Note
Cold (output 3-4)
(Relè 30A AC1)
30A 240V~(AC1)
10A 240V~(AC3) (2HP)
(100000 cycles)
All outputs are
free-voltage
contacts
n°9 outputs from 5 to 26
(see connection diagram)
(Relè 16A AC1)
16A 240V~(AC1)
3A 240V~(AC3)
Dimensional characteristics
Dimensions 100N MASTER 3
121,50mm x 71mm x 175mm (HxPxL)
Dimensions VISION 2PLT (built-in)
70mm x 32mm x 158mm (HxPxL)
Insulation / mechanical characteristics
Display protection rating
IP65
Box material
ABS self-extinguishing
CHAP. 4 - Technical characteristics
CHAPTER 4: TECHNICAL CHARACTERISTICS
4.1

VISION 2PLT
Pag. 10
Rev. 02-18
USE AND MAINTENANCE MANUAL
WARRANTY CONDITIONS
The VISION 2PLT series electronic controls are covered by a 24-months warranty against
all manufacturing defects as from the date indicated on the product ID code.
In case of defect the product must be appropriately packaged and sent to our production
plant or to any authorized Service Center with the prior request of the Return Authorization
Number.
Customers are entitled to have defective products repaired, spare parts and labour
included. The costs and the risks of transport are at the total charge of the Customer.
Any warranty action does not extend or renew its expiration.
The Warranty does not cover:
Damages resulting from tampering, impact or improper installation of the product and
its accessories.
Installation, use or maintenance that does not comply with the instructions provided
with the product.
Repair work carried out by unauthorized personnel.
Damage due to natural phenomena such as lightning, natural disasters, etc…
In all these cases the costs for repair will be charged to the customer.
The intervention service in warranty can be refused when the equipment is modified or
transformed.
Under no circumstances Pego S.r.l. will be liable for any loss of data and information,
costs of goods or substitute services, damage to property, people or animals, loss of sales
or earnings, business interruption, any direct, indirect, incidental, consequential,
damaging, punitive, special or consequential damages, in any way whatsoever caused,
whether they are contractual, extra contractual or due to negligence or other liability arising
from the use of the product or its installation.
Malfunction caused by tampering, bumps, inadequate installation automatically declines
the warranty. It is compulsory to observe all the instructions in this manual and the
operating conditions of the product.
Pego S.r.l. disclaims any liability for possible inaccuracies contained in this manual if due
to errors in printing or transcription.
Pego S.r.l. reserves the right to make changes to its products which it deems necessary
or useful without affecting its essential characteristics.
Each new release of the Pego product user manual replaces all the previous ones.
As far as not expressly indicated, is applicable the Law and in particular the art. 1512 C.C.
(Italian Civil Code).
For any controversy is elected and recognized by the parties the jurisdiction of the Court of
Rovigo.
4.2
CHAP. 4 - Technical characteristics

VISION 2PLT
Pag. 11
Rev. 02-18
USE AND MAINTENANCE MANUAL
PANEL LAYOUT
KEYPAD FUNCTIONS

PROBE VALUES / TIME DISPLAY (if pressed for more than 3 seconds
the current time is displayed for a few seconds)

UP
MUTE ALARM / DISPLAY LAST ALARM (if long pressed)

STAND BY ( ON/OFF)

SET key, room temperature
(with double set point both are shown alternately)
CHAP. 5 - Data programming
CHAPTER 5: DATA PROGRAMMING
5.1
5.2
State led







VISION 2PLT
Pag. 12
Rev. 02-18
USE AND MAINTENANCE MANUAL

DOWN / ENTER MANUAL DEFROST MENU (if long pressed)

ROOM LIGHT
DISPLAY LCD
1.
Ambient temperature / parameters
2.
Value of ambient probe / defrost 1 probe / defrost 2 probe / current
day / parameter value / alarm code
3.
System status / time / time parameter values
Zone
Written
displayed
Fixed state
Flashing state
C1
Compressor 1
active
Compressor 1 waiting for C1 delay, will be the
next to ignite (progr. 2°lev.)
C2
Compressor 2
active
Compressor 2 waiting for C1 delay, will be the
next to ignite (progr. 2°lev.)
d1
Evaporator 1
defrosting
Evaporator 1 in dripping
d2
Evaporator 2
defrosting
Evaporator 2 in dripping
Current time
Hour : minute : second
Defrost time
Hour: minute : second
dEFr
Defrost menu active
Regulation probe index
(displayed in zone 1)
1 = ambient probe 1
2 = ambient probe 2
A = mean of ambient probes
CHAP. 5 - Data programming
5.3











VISION 2PLT
Pag. 13
Rev. 02-18
USE AND MAINTENANCE MANUAL
4.
PRG
Programming (control is in programming mode)
5.
Cold
(compressor call indicator, if flashing a compressor 1 is waiting C1 delay)
6.
Defrost (if flashing an evaporator is in drip mode)
7.
Fans (flashing during fan stop –parameter F5)
8.
Light
9.
Alarm
10.
Stand-by (flashing in stand-by. Outputs deactivated)
11.
Current month
GENERAL
To enhance safety and simplify the operator’s work, the VISION 2PLT system has two
programming levels; the first level (Level 1) is used to configure the frequently-modified
SET-POINT parameters. The second programming level (Level 2) is for general parameter
programming of the various controller work modes.
It is not possible to access Level 2 programming directly from Level 1: you must exit the
programming mode first.
KEY TO SYMBOLS
For purposes of practicality the following symbols are used:
• () the UP key is used to increase values, mute the buzzer and display last
temperature alarm;
• () the DOWN key is used to decrease values and force defrosting.
CHAP. 5 - Data programming
5.4
5.5

VISION 2PLT
Pag. 14
Rev. 02-18
USE AND MAINTENANCE MANUAL
SETTING AND DISPLAYING THE SET-POINTS
1. Press the SET key to display the current SET-POINT (temperature).
2. Hold down the SET key and press the () or () keys to modify the SET-POINT.
3. Release the SET key to return to room temperature display: the new setting will be
saved automatically.
Note: with the double set point configuration the display of the two set points is alternated
each time SET is pressed.
DISPLAY PROBES VALUE
Press the button Probe values repeatedly to toggle between probe values of the
temperature detected by the sensor 1/2 room sensor / evaporator probe 1 / evaporator
probe 2 / day of the current month. If the probe is faulty or not present this will show "- - -".
LEVEL 1 PROGRAMMING (USER LEVEL)
To gain access to the Level 1 configuration menu proceed as follows:
1. Press the () and ()keys simultaneously and keep them pressed for a few seconds
until the first programming variable appears on the display.
2. Release the () and ()keys.
3. Select the variable to be modified using the () or () key.
4. When the variable has been selected it is possible:
• To display the setting by pressing SET.
• To modify the setting by pressing the SET key and the () or ()keys.
When configuration values have been set you can exit the menu by pressing the () and
()keys simultaneously for a few seconds until the cold room temperature reappears.
5. The new settings are saved automatically when you exit the configuration menu.
5.6
5.8
5.7
CHAP. 5 - Data programming

VISION 2PLT
Pag. 15
Rev. 02-18
USE AND MAINTENANCE MANUAL
LIST OF LEVEL 1 VARIABLES (User level)
VARIABLE
MEANING
VALUES
DEFAULT
r0
Temperature differential referred to main SETPOINT
(both set points where double)
0,2 ÷ 10,0 °C
2,0°C
d0
Defrost interval (hours).
In the case of the double evaporator defrost start is simultaneous.
0 ÷ 24 hours
0 = disabled
4 hours
d21
End-of-defrost set point, evaporator 1.
Defrost is not executed if the temperature read by the defrost
sensor is greater than value d21. (If the sensor is faulty defrosting
is time-based)
-35,0 ÷ 45,0 °C
15,0°C
d22
End-of-defrost set point, evaporator 2.
Defrost is not executed if the temperature read by the defrost
sensor is greater than value d22. (If the sensor is faulty defrosting
is time-based)
-35,0 ÷ 45,0 °C
15,0°C
d31
Maximum defrost duration, evaporator 1 (minutes)
1 ÷ 120 min
25 min
d32
Maximum defrost duration, evaporator 2 (minutes)
1 ÷ 120 min
25 min
d7
Drip duration (minutes)
At the end of defrosting the compressor and the fans remain at
standstill for time setting d7: the defrost LED on the front of the
panel flashes.
0 ÷ 120 min
0 min
F5
Fan pause after defrost (minutes)
Allows fans to be kept at standstill for a time F5 after dripping. This
time is counted from the end of dripping. If dripping is not set the
fan pause is executed directly after the end of defrosting. During
the pause the fan icon flashes.
0 ÷ 10 min
0 min
dEL
Second system start delay (valid if nrC=2 e Set=1)
0-60 min
30 min
A1
Minimum temperature alarm
Allows user to define a minimum cold room storage temperature.
Below the value A1 (after Ald delay) a warning is given: the alarm
LED and the alarm code EL flash and the fault is also highlighted
by an internal buzzer.
-45 ÷ (A2-1)°C
-45°C
A2
Maximum temperature alarm
Allows user to define a maximum cold room storage temperature.
Above the value A2 (after Ald delay) a warning is given: the alarm
LED and the alarm code EH flash and the fault is also highlighted
by an internal buzzer.
(A1+1) ÷ 99°C
+45°C
dF1
Real-time defrost enable, evaporator 1
With dF1=1 it is possible to set up to 6 defrosts in real time in a
day by using the parameters d41…d46
(not considered if d0 differs from 0).
0 disabled
1 enabled
0
dF2
Real-time defrost enable, evaporator 2
With dF2=1 it is possible to set up to 6 defrosts in real time in a
day by using the parameters d51…d56
(not considered if d0 differs from 0).
0 disabled
1 enabled
0
CHAP. 5 - Data programming
5.9

VISION 2PLT
Pag. 16
Rev. 02-18
USE AND MAINTENANCE MANUAL
d41…d46
Programming defrost times, evaporator 1
It is possible to set up to 6 defrosting times
00:00:00
÷
23:59:00
00:00:00
d51…d56
Programming defrost times, evaporator 2
It is possible to set up to 6 defrosting times
00:00:00
÷
23:59:00
00:00:00
LEVEL 2 PROGRAMMING (Installer level)
To access the second programming level press the UP () and DOWN ()keys and the
LIGHT key simultaneously for a few seconds.
When the first programming variable appears the system automatically goes to stand-by.
1. Select the variable to be modified by pressing the UP () and DOWN ()keys. When
the parameter has been selected it is possible to:
2. View the setting by pressing the SET key.
3. Modify the setting by holding the SET key down and pressing the () or ()key.
4. When configuration settings have been completed you can exit the menu by pressing
the () and ()keys simultaneously and keeping them pressed until the room
temperature value reappears.
5. Changes are saved automatically when you exit the configuration menu.
6. Press the STAND-BY key to enable electronic control.
CHAP. 5 - Data programming
5.10

VISION 2PLT
Pag. 17
Rev. 02-18
USE AND MAINTENANCE MANUAL
LIST OF LEVEL 2 VARIABLES (Installer level)
VARIABLE
MEANING
VALUES
DEFAULT
nrC
Number of compressors (or solenoids or
systems)
1 = 1 system
2 = 2 system
2
nrE
Number of evaporators
1 = 1 evaporator
2 = 2 evaporators
2
Set
Single or double set-point setting
(ignored if nrC = 1)
1 = one setting only
2 = double setting
1
rot
Compressor rotation
(ignored if nrC = 1)
0 = compressor rotation
1 = fixed call
0
F3
Fan status with compressor off
0 = Fans running continuously
1 = Fans running only if compressor
is working
2 = fans disabled
1
F4
Fan pause during defrost
0 = Fans running during defrost
1 = Fans not working during defrost
1
F6
Evaporator fans activation for air recirculation.
The fans activate for a time defined by F7 if they
have not started working for the F6 time. If activation
time coincides with the defrosting time, end of
defrosting is awaited.
0 –240 min
0 = (function not activated)
0 min
F7
Evaporator fans duration for air recirculation.
Fans working time for F6
0-30 min
10 min
dE1
Evaporator 1 sensor presence
Disabling the evaporator sensor causes defrosts
to occur cyclically with period d0 or by real time
clock and terminate according to time d31
0 = evaporator 1 sensor present
1 = evaporator 1 sensor absent
0
dE2
Evaporator 2 sensor presence
Disabling the evaporator sensor causes defrosts
to occur cyclically with period d0 or by real time
clock and terminate according to time d32
0 = evaporator 2 sensor present
1 = evaporator 2 sensor absent
0
d1
Defrost type, cycle inversion (hot gas) or
elements
With 2 compressors and only 1 evaporator both
compressors are activated.
0 = heater
1 = hot gas
2 = hot gas with basin
3 = heater, with temperature control
0
d8
Post-defrost compressor start mode.
Determines whether system compressor start is
possible or not if second is defrosting
0 = if an evaporator is still
defrosting the second system can
continue working
1 = compressors do not start until
all defrosts have been completed
0
Ad
Network address for connection to TeleNET /
Modbus supervision system.
0 ÷ 31 if SEr=0
1 ÷ 247 if SEr=1
1
SEr
RS-485 communication protocol
0 = TeleNet Protocol
1 = Modbus-RTU Protocol
0
Bdr
Modbus baudrate
0 = 300 baud
1 = 600 baud
2 = 1200 baud
3 = 2400 baud
4 = 4800 baud
5 = 9600 baud
6 = 14400 baud
7 = 19200 baud
8 = 38400 baud
5
Prt
Modbus parity check
0 = none 1 = even parity
2 = odd parity
0
Ald
Minimum and maximum temperature signalling
and alarm display delay.
0÷ 240 min
120 min
C1
Minimum time between shutdown and
subsequent switching on of the compressor.
0 ÷ 15 min
0 min
5.11
CAP. 5 - Programmazione dati
CHAP. 5 - Data programming

VISION 2PLT
Pag. 18
Rev. 02-18
USE AND MAINTENANCE MANUAL
VARIABLE
MEANING
VALUES
DEFAULT
CE1
Duration of compressor ON time in the case of
faulty ambient probe (emergency mode).
If CE1=0 the emergency mode in the presence of
error E1/E2 remains disabled, the compressor
remains off and defrosting is prevented in
order to conserve the remaining cold.
0 ÷ 240 minutes
(0=disabled)
0
CE2
Duration of compressor OFF time in the case
of faulty ambient probe (emergency mode).
5 ÷ 240 min
5 min
Hr1
Compressor 1 hour counter (can be reset by
pressing the set and clock keys for 10 sec)
0 ÷ 999 tens of hours
0
Hr2
Compressor 2 hour counter (can be reset by
pressing the set and clock keys for 10 sec)
0 ÷ 999 tens of hours
0
CL1
Room sensor 1 value correction
-10,0 ÷ 10,0 °C
0,0
CL2
Room sensor 2 value correction
-10,0 ÷ 10,0 °C
0,0
HSE
Maximum value attributable to set point
(LSE+1) ÷ 99°C
45°C
LSE
Minimum value attributable to set point
-45°C ÷ (HSE-1)
-45°C
bEE
Buzzer state
0 = disabled 1 = enabled
1
doC
Compressor safety time for door switch: when
the door is opened the evaporator fans shut down
and the compressor will continue working for time
doC, after which it will shut down.
0 ÷ 5 min
0 min
Tdo
Time to re-insert compressor after opening
door
When opening the door and after time tdo the
normal operation of the control is restored giving
the alarm for open door (Ed).
0 ÷ 240 min
(0 = disabled)
0 min
In1 … In4
DI1…DI4 digital input configuration
9 = fan 2 protection (N.O.)
8 = fan 1 protection (N.O.)
7 = Stop defrosting remotely (N.O.)
(reads leading edge of impulse)
6 = Remote defrost start (N.O.)
(reads leading edge of impulse)
5 = Remote Stand-by (N.O.)
4 = Door switch (N.O.)
3 = Man in room alarm (N.O.)
2 = Compressor 2 protection (N.O.)
1 = Compressor 1 protection (N.O.)
0 = Disabled
-1 = Compressor 1 protection (N.C.)
-2 = Compressor 2 protection (N.C.)
-3 = man in room alarm (N.C.)
-4 = Door switch (N.C.)
-5 = Remote Stand-by (N.C.)
-6 = Remote defrost start (N.C.)
(reads leading edge of impulse)
-7 = Stop defrosting remotely (N.C.)
(reads leading edge of impulse)
-8 = fan 1 protection (N.C.)
-9 = fan 2 protection (N.C.)
-9 ÷ 9
(the input terminals of DI1, DI2,
DI3, DI4 are displayed in Appendix
par. A.2)
N.B. in the case of digital input
configured for "protection fan", the
control maintains the operation and
the failure is signaled on the display
and via the alarm relay.
In1 = 1
In2 = 2
In3 = 3
In4 = 4
CHAP. 5 - Data programming

VISION 2PLT
Pag. 19
Rev. 02-18
USE AND MAINTENANCE MANUAL
VARIABLE
MEANING
VALUES
DEFAULT
Fst
FAN shutdown TEMPERATURE
The fans will stop if the temperature value read by
the evaporator sensor is higher than this value.
-45 ÷ 99°C
+99°C
Fd
Fst differential
1 ÷ 10 °C
2 °C
rA
DO digital output setting
(the output terminal of DO is displayed in
Appendix par. A.2)
2 = door resistance deicing (NO)
1 = General alarm (NO)
0 = disabled
-1 = General alarm (NC)
-2 = Door resistance deicing (NC)
1
StA
Setpoint deicing resistance relay
If the temperature measured by the room principal
probe is less than this value, it activates the
auxiliary relay (if rA=± 2)
-45°C ÷ 99°C
0
dEF
Reserved parameter
---
---
dY
Day set up
01 ÷ 31
01
Mo
Month set up
01 ÷ 12
01
Yr
Year set up
00 ÷ 99
13
hMS
Time set up
Hours –minutes - seconds
12:00:00
P1
Password: protection type
(active when PA is different from 0)
0 = Displays only the set point and
allows alarm stop (blocks access to
programming levels)
1 = displays the set point, allows alarm
stop, defrost, light (blocks access to
programming levels)
2 = blocks access to levels 1 and 2
during programming (all other functions
permitted)
3 = blocks access to level 2 during
programming (all other functions
permitted)
1
PA
Password
(see P1 for protection type)
0 ÷ 999
(0=disabled)
0
mOd
Mode of operation
1 = only ambient 1 regulation probe
2 = only ambient 2 regulation
probe
3 = ambient 1 regulation probe,
ambient 2 safety probe
4 = adjustment with the average
value of the probes
1
rEL
Release software
Read only
---
CHAP. 5 - Data programming

VISION 2PLT
Pag. 20
Rev. 02-18
USE AND MAINTENANCE MANUAL
SWITCHING ON THE VISION 2PLT ELECTRONIC CONTROLLER
After wiring the controller correctly, power up at 230VAC; the panel will immediately emit a
beep and all segments and LEDs come on simultaneously for a few seconds.
COMPRESSOR ACTIVATION/DEACTIVATION CONDITIONS
The VISION 2PLT controller activates the compressor when cold room temperature
exceeds setting+differential (r0); it deactivates the compressor when cold room
temperature is lower than the setting.
CONFIGURATIONS
-Control of 2 motor condenser units with 2 evaporators.
-Control of 1 motor condenser unit with 2 evaporators.
-Control of unit panel with 2 evaporators.
-Control of 2 motor condenser units with 1 evaporator.
-Control of 1 motor condenser units with 1 evaporator
Functional combinations are managed by nrC (number of compressors) and nrE (number
of evaporators) parameters.
SINGLE SET POINT WITH DOUBLE SYSTEM
With a single set point (parameter SEt=1, Considered set: Set 1) and double system
(parameter nrC=2) the controller initially ‘calls’ the compressor which has worked less if
rot=0 or calls compressor 1 and then 2 after the delay if rot=1. If the set point is not
reached within time DeL (1st level parameter) the second presser is switched on to help. In
event of Stand-by or power off compressors restart according to DeL parameter.
DOUBLE SET POINT
With SEt=1 (double set), there are 2 distinct set points for the 2 compressors. Setting of
the 2 set points is done by pressing the set key: press once and the set value will appear
with St1 alongside; the second time it is pressed the second set value appears with St2
alongside.
If rot=0 there will be compressor rotation (with reference to the lowest set point the
compressor that has worked the least will be started). If SEt=2 DeL parameter is ignored,
compressors are related to the setpoint: if the ambient temperature exceeds lowest
setpoint +r0 first compressor starts (and relative fans, if enabled), if the temperature
exceeds greater setpoint + r0 second compressor starts. In event of Stand-by or power off
compressors restart simultaneously (1 sec delay).
5.12
5.13
5.14
CHAP. 5 - Data programming
5.15
5.16