Pego ECP202 EXPERT User manual

Rel. Software: 26
ECP202EXPERT
+ BASE
READ AND KEEP
Use and maintenance manual
ELECTRICAL BOARDS FOR REFRIGERATING INSTALLATIONS
REV. 01-20
ENG

ECP202 EXPERT + BASE

ECP202 EXPERT + BASE
Page 3
USE AND MAINTENANCE MANUAL
Rev. 01-20
INTRODUCTION
Page 4 1.1 Generality
Page 4 1.2 Product ID codes
Page 5 1.3 Overall dimensions
Page 5 1.4 Identification data
INSTALLATION
Page 6 2.1 Important information for the installer
Page 6 2.2 Standard assembly kit
Page 7 2.3 Installing the unit
FUNCTIONS
Page 9 3.1 ECP202 EXPERT + BASE panel functions
TECHNICAL CHARACTERISTICS
Page 10 4.1 Technical characteristics
Page 11 4.2 Warranty terms
PARAMETER PROGRAMMING
Page 12 5.1 Control panel
Page 12 5.2 Frontal keypad
Page 13 5.3 LED display
Page 14 5.4 General
Page 14 5.5 Symbology
Page 14 5.6 Setting and displaying set points
Page 15 5.7 Level 1 programming
Page 15 5.8 List of Level 1 variables
Page 16 5.9 Level 2 programming
Page 16 5.10 List of Level 2 variables
Page 19 5.11 Switching on the ECP202 EXPERT + BASE electronic controller
Page 19 5.12 Hot/cold activation/deactivation conditions
Page 19 5.13 Manual defrost activation / deactivation
Page 20 5.14 Defrost with heater and temperature control
Page 20 5.15 Hot gas defrosting
Page 20 5.16 Pump down function
Page 20 5.17 Password protection
OPTIONS
Page 21 6.1 TeleNET monitoring / supervision system
Page 21 6.2 Net configuration with Modbus-RTU protocol
TROUBLESHOOTING
Page 22 7.1 Troubleshooting
APPENDICES
Page 23 A.1 EU declaration of Conformity
Page 24 A.2 ECP202 EXPERT + BASE wiring diagram
Page 25 A.3 Connection example (1) - ECP202 EXPERT + BASE
Page 26 A.4 Connection example (2) - ECP202 EXPERT + BASE
CONTENTS
CHAP. 1
CHAP. 2
CHAP. 3
CHAP. 4
CHAP. 5
CHAP. 6
CHAP. 7

ECP202 EXPERT + BASE
Page 4
USE AND MAINTENANCE MANUAL
Rev. 01-20
GENERAL
The electronic controllers of the ECP202 EXPERT + BASE series have been designed to
control static or ventilated cold rooms.
The ECP202 EXPERT + BASEelectronic board allows the user to control all the
components on a refrigeration unit such as compressor, evaporator fans, defrosting
elements and cold room light.
The applications are:
-single-phase static or ventilated refrigeration systems up to 2 HP, with off-cycle or
electrical defrosting.
-out of room unit to be connected to power board for compressor, defrosting and fan
start.
-single-phase evaporator control unit with cold solenoid consensus or remote
condensing unit consensus.
The ABS box is easy to install on the wall as the ECP202 EXPERT + BASE has a
minimum footprint and IP65 protection degree.
PRODUCT ID CODES
200202EXBCS Control and management of the compressor,
defrosting heaters, evaporator fans and cold
room light. Two configurable auxiliary relays.
16A differential magnetothermic protection.
1.1
1.2
CHAPTER 1: INTRODUCTION
CHAP. 1 - Introduction

ECP202 EXPERT + BASE
Page 5
USE AND MAINTENANCE MANUAL
Rev. 01-20
OVERALL DIMENSIONS
IDENTIFICATION DATA
The unit described in this manual has an ID plate on the side showing all the relevant
identification data:
•Name of Manufacturer
•Code of the panel
•Serial number
•Date of production
•Power supply
•IP protection rating
•Operating temperature
1.3
1.4
CHAP. 1 - Introduction

ECP202 EXPERT + BASE
Page 6
USE AND MAINTENANCE MANUAL
Rev. 01-20
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 have a cross-
section of at least 1mm2. Probes extension or shortening could alter their factory
calibration; then proceed with the verification and calibration, using an external
thermometer.
STANDARD ASSEMBLY KIT
The ECP202 EXPERT + BASE electronic controller, for assembly and use, is equipped
with:
•Nr 3 seals, to be fitted between the fixing screws and the box back panel;
•Nr 1 user’s manual.
CHAPTER 2: INSTALLATION
2.1
2.2
CHAP. 2 - Installation

ECP202 EXPERT + BASE
Page 7
USE AND MAINTENANCE MANUAL
Rev. 01-20
INSTALLING THE UNIT
Fig. 1: Raise the transparent cover
that shields the magneto-thermal
cut-out switch and remove the
screw cover on the right-hand
side.
Fig. 2: Undo the 4 fixing screws at the front
of the box.
Fig. 3: Close the transparent cut-out switch
cover.
Fig. 4: Open the front of the box, lift it and
slide the two hinges out as far as
they will go.
Fig. 5: Press on the sides of the hinges to
remove them from their seats and
so remove the front panel
completely.
CHAP. 2 - Installation
2.3

ECP202 EXPERT + BASE
Page 8
USE AND MAINTENANCE MANUAL
Rev. 01-20

Fig. 6: Use the three existing holes to fix the
box back panel to the wall: use three
screws of a length suitable for the
thickness of the wall to which the
panel will be attached. Fit a rubber
washer (supplied) between each
screw and the box backing.
Fig. 7: Hook the frontal panel back up to the
lower part of the box by inserting the
two hinges in their seats and, bending
them, rotate downwards 180° to gain
access to the electronic board.
Make all electrical connections according to diagram A2.
To carry out the electrical connections reliably and maintain the degree of protection of the box, we
recommend using suitable cable glands and / or pipe clamps to tightly seal all the wiring.
It is advisable to distribute the cables within the panel as neatly as possible. In particular, keep the
power cables away from the signal cables. Use any sealing strips.
Fig. 8: Close the front panel, making sure that
all the wires are inside the box and that
the box seal sits in its seat properly.
Tighten the front panel using the 4
screws.
Give power supply to the panel and carry
out a scrupulous reading / programming
of all the parameters set.
Be careful not to over-tighten the closing screws as they could cause deformation of
the box and alter the correct operation and tactile effect of the panel keyboard.
On all loads connected to the ECP202 EXPERT + BASE electronic controller, install
overcurrent protection devices for short-circuits, to avoid damaging the device. Every
operation and / or maintenance operation must be carried out by disconnecting the panel from the
power supply and from all the possible inductive and power loads to which it is connected; this to
guarantee the maximum safety condition for the operator.
CHAP. 2 - Installation

ECP202 EXPERT + BASE
Page 9
USE AND MAINTENANCE MANUAL
Rev. 01-20
ECP202 EXPERT + BASE PANEL FUNCTIONS
-Cold room temperature displaying and regulation with decimal point.
-Evaporator temperature with decimal point displaying from parameter.
-Plant control activation/deactivation.
-Plant alarms signaling (probe error, minimum and maximum temperature alarm,
compressor protection, door alarm).
-LED indicators and large display illustrate system status.
-User-friendly keypad.
-Evaporator fans management.
-Manual and automatic defrost (static, through heaters, through heaters with
temperature control, through cycle reversal).
-Direct or pump-down management and control of condensing unit up to 2HP.
-Cold room light activation through key on the panel or through door-switch.
-Direct control of compressor, defrosting elements, evaporator fans, room light with
outputs directly connectable to the various units.
-Air recirculation management.
-2 auxiliary relays which are configured by parameter.
-RS485 to connect to a TeleNET supervision system or a MODBUS-RTU network.
-Emergency operation in the event of a faulty probe environment.
-Smart defrost (energy saving).
-Reduced set (night set) from digital input.
-Can be configured for hot or cold applications.
-Configurable digital inputs.
CHAP. 3 - Functions
CHAPTER 3: FUNCTIONS
3.1

ECP202 EXPERT + BASE
Page 10
USE AND MAINTENANCE MANUAL
Rev. 01-20
TECHNICAL CHARACTERISTICS
Power supply
Voltage
230 V~ 10% 50/60Hz
Max power (only electronics)
~ 7 VA
Rated current (with all loads connected)
16A
Cold room conditions
Working temperature
-5T40°C <90% R.H. non condensing
Storage temperature
-10T70°C <90% R.H. non condensing
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 (voltage free contacts)
Description
Installed relay
Card output characteristics
Note
Compressor
(Relay 30A AC1)
10A 250V~ (AC3) (2HP)
(100000 cycles)
The sum of
contemporary
absorptions of these
outputs
has not to
exceed 16A
Elements
(Relay 30A AC1)
16A 250V~ (AC1)
Fans
(Relay 16A AC1)
2,7A 250V~ (AC3
Room light
(Relay 16A AC1)
16A 250V~ (AC1)
Aux 1
(Relay 5A AC1)
5(3)A 250V~
Aux 2
(Relay 5A AC1)
5(3)A 250V~
Insulation between relay outputs: 1500V
General electrical protection
Differential magnetothermic circuit breaker 16A
Id = 300mA (Id = 30mA, on request)
Disconnecting power 4.5 kA
Dimensional characteristics
Dimensions
18cm x 9.6cm x 26.3cm (HxPxL)
Insulation / mechanical characteristics
Box protection rating
IP65
Box material
self-extinguishing ABS
PTI of insulation materials
Printed circuits 175
Type of insulation
Class II
Type of action and disconnection
Relay contacts 1B (micro disconnection)
Environmental pollution
2, normal situation
Ball pressure test temperature
75°C for the plastic cover and 100°C for the plastic components
that carry electricity.
CHAP. 4 - Technical characteristics
CHAPTER 4: TECHNICAL CHARACTERISTICS
4.1

ECP202 EXPERT + BASE
Page 11
USE AND MAINTENANCE MANUAL
Rev. 01-20
WARRANTY TERMS
The ECP202 EXPERT + BASE series products 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 labor
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

ECP202 EXPERT + BASE
Page 12
USE AND MAINTENANCE MANUAL
Rev. 01-20
CONTROL PANEL
FRONT KEYPAD

AUXILIARY RELAY CONTROL
(controls the relays manual if parameter AU1/AU2 = 2/-2)

UP / MUTE BUZZER ALARM

STAND BY (if the system shuts down the LED flashes)

room temperature SETTING













CHAP. 5 –Parameter programming
CHAPTER 5: PARAMETER PROGRAMMING
5.1
5.2

ECP202 EXPERT + BASE
Page 13
USE AND MAINTENANCE MANUAL
Rev. 01-20

DOWN / MANUAL DEFROST

ROOM LIGHT
LED DISPLAY

Cold room temperature / parameters

Stand-by (flashes on stand-by. Outputs are deactivated)

Room light (flashes if door switch activated)

Cold (indicates activation of compressor)
Fans
Defrosting
Auxiliary (indicates AUX relay calling if AU1/AU2=+/-2 or +/-3)
Alarm / warning
Decimal point (flashing in night mode)
Hot mode (resistance call signaling)
CHAP. 5 - Parameter programming
5.3

ECP202 EXPERT + BASE
Page 14
USE AND MAINTENANCE MANUAL
Rev. 01-20
GENERAL
To enhance safety and simplify the operator’s work, the ECP202 EXPERT + BASE
system has two programming levels; the first level (Level 1) is used to configure the
frequently modified SETPOINT parameters. The second programming level (Level 2) is for
general parameter programming of the various controller work modes.
It is not possible to access the Level 2 programming directly from Level 1: you must exit
the programming mode first.
SYMBOLOGY
For purposes of practicality the following symbols are used:
•()the UP key is used to increase values and mute the alarm.
•()the DOWN key is used to decrease values and force defrosting.
SETTING AND DISPLAYING THE SET POINT
1. Press the SET key to display the current SETPOINT (temperature).
2. Hold down the SET key and press the () or () keys to modify the SETPOINT.
3. Release the SET key to return to cold room temperature display: the new setting will
be saved automatically.
5.4
CHAP. 5 –Parameter programming
5.5
5.6

ECP202 EXPERT + BASE
Page 15
USE AND MAINTENANCE MANUAL
Rev. 01-20
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 key.
•To modify the setting by pressing the SET key together with the () or ()key.
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.
LIST OF LEVEL 1 VARIABLES (User level)
VARIABLES
MEANING
VALUE
DEFAULT
r0
Temperature difference compared to main SETPOINT
0,2 ÷ 10,0 °C
2,0 °C
d0
Defrost interval (hours)
If d0 = 0 cyclical defrosts Off
0 ÷ 24 hours
4 hours
d2
End-of-defrost setpoint.
Defrost is not executed if the temperature read by the defrost
sensor is greater than d2 (if the sensor is faulty defrosting is timed).
-35 ÷ 45 °C
15°C
d3
Max defrost duration (minutes)
1 ÷ 240 min
25 min
d7
Drip duration (minutes)
At the end of defrost the compressor and fans remain at standstill
for time d7, the defrost LED on the front panel flashes.
0 ÷ 10 min
0 min
F5
Fan pause after defrosting (minutes)
Allows fans to be kept at standstill for a time F5 after dripping. This
time begins at the end of dripping. If no dripping has been set the
fan pause starts directly at the end of defrost.
0 ÷ 10 min
0 min
A1
Minimum temperature alarm
Allows user to define a minimum temperature for the room being
refrigerated. Below value A1 an alarm trips: the alarm LED flashes,
displayed temperature flashes and the buzzer sounds to indicate
the problem.
-45 ÷ (A2-1) °C
-45°C
A2
Maximum temperature alarm
Allows user to define a maximum temperature for the room being
refrigerated. Above value A2 an alarm trips: the alarm LED flashes,
displayed temperature flashes and the buzzer sounds to indicate
the problem.
(A1+1) ÷ 99 °C
+99°C
tEu
Evaporator sensor temperature display
(displays nothing if dE=1)
evaporator
temperature
read only
5.7
5.8
CHAP. 5 - Parameter programming

ECP202 EXPERT + BASE
Page 16
USE AND MAINTENANCE MANUAL
Rev. 01-20
LEVEL 2 PROGRAMMING (Installer level)
To access the second programming level, proceed as follows:
1. 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.
2. Release the three keys.
3. Select the variable to be modified by pressing the UP () and DOWN ()keys. When the
parameter has been selected it is possible to:
•View the setting by pressing the SET key.
•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 reappears.
Changes are saved automatically when you exit the configuration menu.
Press the STAND-BY key to enable electronic control.
LIST OF LEVEL 2 VARIABLES (Installer level)
VARIABLES
MEANING
VALUES
DEF.
F3
Fan status with compressor off
0 = Fans run continuously
1 = Fans only run when compressor is
working
2 = Fans disabled
1
F4
Fan pause during defrost
0 = Fans run during defrost
1 = Fans do not run 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 minutes
0 = (function not activated)
0 min
F7
Evaporator fans duration for air
recirculation. Fans working time for F6
0 ÷ 240 seconds
10 sec
dE
Sensor presence
If the evaporator sensor is disabled defrosts
are carried out cyclically with period d0:
defrosting ends when an external device trips
and closes the remote defrost contact or
when time d3 expires.
0 = evaporator sensor present
1 = no evaporator sensor
0
d1
Defrost type, cycle inversion (hot gas) or
with heater elements
0 = heating element
1 = hot gas
2 = heater with temperature control
0
dPo
Defrost at Power On
0 = disabled
1 = defrost at power-on (if possible)
0
dSE
Smart defrost
0 = disabled
1 = enabled
0
dSt
Smart defrost Setpoint (if dSE=1)
The counting of the time between the defrost
is incremented only if the compressor is ON
and the evaporator temperature is less than
dSt.
-30 ÷ 30 °C
1 °C
CHAP. 5 - Data programming
5.9
5.10

ECP202 EXPERT + BASE
Page 17
USE AND MAINTENANCE MANUAL
Rev. 01-20
dFd
Display viewing during Defrost
0 = current temperature
1 = temperature at the start of the defrost
2 = “DEF”
1
Ad
Net address for connection to TeleNET
supervision system or Modbus
0 ÷ 31 (with SEr=0)
1 ÷ 247 (with SEr=1)
0
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
2 = odd
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
CAL
Cold room sensor value correction
-10,0 ÷ +10,0 °C
0,0 °C
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 E0 remains disabled, the
compressor remains off and defrosting is
prevented in order to conserve the remaining
cold.
0 ÷ 240 min
0 = disabled
0 min
CE2
Duration of compressor OFF time in the
case of faulty ambient probe.
(emergency mode).
5 ÷ 240 min
5 min
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
Compressor restart time after door
opening. When the door is opened and after
tdo time, it’s setted back the normal
functioning giving door open alarm (Ed).
If the door switch is closed and the light stays
on for a longer time than tdo light cell alarm is
signaled (E9).
With tdo=0 the parameter is disabled.
0 ÷ 240 min
0 = disabled
0 min
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
LSE
Minimum value attributable to setpoint.
-45 ÷ (HSE-1) °C
-45 °C
HSE
Maximum value attributable to setpoint.
(LSE+1) ÷ +99°C
+99 °C
CHAP. 5 - Parameter programming

ECP202 EXPERT + BASE
Page 18
USE AND MAINTENANCE MANUAL
Rev. 01-20
AU1
Auxiliary/alarm relay 1 control
-6 (NC) = relay de-energised during stand-by
-5 (NC) = Contact for casing element control
(AUX relay closed with compressor
output inactive).
-4 (NC) = pump down function (NC, see CHAP
5.16)
-3 (NC) = automatic auxiliary relay managed by
StA temp. setting with 2°C differential
(NC)
-2 (NC) = manual auxiliary relay controlled via
AUX key (NC)
-1 (NC) = alarm relay (NC)
0 = relay deactivated
1 (NO) = alarm relay (NO)
2 (NO) =manual auxiliary relay controlled via
AUX key (NO)
3 (NO) = automatic auxiliary relay managed by
StA temp. setting with 2°C differential
(NO)
4 (NO) = pump down function (NO, see CHAP
5.16)
5 (NO) = free voltage contact for condensing
unit (AUX relay and compressor relay
in parallel)
6 (NO) = relay excited during stand-by
-1
AU2
Auxiliary/alarm relay 2 control
(like AU1)
5
StA
Temperature setting for auxiliary relay
-45 ÷ +99°C
0 °C
nSC
Correction factor for the SET button
during night operation (energy saving)
(with In1 or In2 = 8 or -8)
During night operation the control set is:
Set Control = Set + nSC
In night mode decimal point flashes.
-20,0 ÷ +20,0 °C
0,0 °C
In1
INP-1 input setting
8 = Night mode digital input (energy saving,
N.O.)
7 = Stop defrosting remotely (N.O.) (reads
rising edge of impulse)
6 = Start defrosting remotely (N.O.) (reads
rising edge of impulse)
5 = Stand-by remotely (N.O.) (In order to
indicate Stand-By mode, the display shows
‘In5’alternating with the current view)
4 = Pump-down pressure switch (N.O.)
3 = Man-in-room alarm (N.O.)
2 = Compressor protection (N.O.)
1 = Door switch (N.O.)
0 = disabled
-1 = Door switch (N.C.)
-2 = Compressor protection (N.C.)
-3 = Man-in-room alarm (N.C.)
-4 = Pump-down pressure switch (N.C.)
-5 = Stand-by remotely (N.C.) (In order to
indicate Stand-By mode, the display shows
‘In5’alternating with the current view)
-6 = Start defrosting remotely (N.C.) (reads
falling edge of impulse)
-7 = Stop defrosting remotely (N.C.) (reads
falling edge of impulse)
-8 = Night mode digital input (energy saving,
N.C.)
2
In2
INP-2 input setting
(like In1)
1
bEE
Buzzer enable
0 = disabled
1 = enabled
1
CHAP. 5 - Parameter programming

ECP202 EXPERT + BASE
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USE AND MAINTENANCE MANUAL
Rev. 01-20
mOd
Thermostat functioning mode
0 = Cold function
1 = Hot function
(in this mode defrosting and fan disable
Fst are excluded)
0
P1
Password type of protection
(active when PA is not equal 0)
0 = only display set point
1 = display set point, AUX, light access
2 = access in programming not permitted
3 = access in second level programming
not permitted
3
PA
Password (see P1 for the type of protection)
0...999
0 = not active
0
reL
release software
indicates software version
26
(read only)
SWITCHING ON THE ECP202 EXPERT + BASE ELECTRONIC CONTROLLER
After wiring the electronic controller correctly, power up at 230 V AC; the display panel will
immediately emit a beep and all the LEDs will come on simultaneously for a few seconds.
COLD/HOT ACTIVATION/DEACTIVATION CONDITIONS
In cold mode (mOd=0), the ECP202 EXPERT + BASE 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.
If Pump-Down function is selected (Parameter AU1/AU2 = 4/-4), see chapter 5.16 for
compressor activation/deactivation conditions.
In hot mode (mOd=1), the ECP202 EXPERT + BASE controller activates the heat output
(COMPR output) when cold room temperature drops below setting-differential (r0); it
deactivates the heat output (COMPR output) when cold room temperature is higher than
the setting.
MANUAL DEFROSTING ACTIVATION/DEACTIVATION
To defrost just press the dedicated key (see section 5.2) to activate the elements relay.
Defrosting will not take place if the end-of-defrost temperature setting (d2) is lower than
the temperature detected by the evaporator sensor. Defrosting ends when the end-of-
defrost temperature (d2) or maximum defrost time (d3) is reached, or due to forced manual
defrost termination (end of defrost button or digital input).
5.11
5.12
CHAP. 5 –Parameter programming
5.13

ECP202 EXPERT + BASE
Page 20
USE AND MAINTENANCE MANUAL
Rev. 01-20
DEFROST WITH HEATER AND TEMPERATURE CONTROL
Set the parameter d1=2 for the management of heater defrost by time with temperature
control. During the defrost the output is activated when the evaporator’s temperatures are
lower than d2. Defrost stops after d3 minutes. It allows energy saving and a better defrost
process.
HOT GAS DEFROSTING
Set parameter d1=1 to defrost in cycle inversion mode.
The compressor relay and defrost relay are activated throughout the defrost phase.
To ensure proper control of the system the installer must use the defrost output: this must
allow opening of the cycle inversion solenoid valve and closure of the liquid solenoid valve.
For capillary systems (without thermostat valve) it is only necessary to control the cycle
inversion solenoid valve via the defrost relay control.
PUMP DOWN FUNCTION
Pump down function is activated when parameter AU1/AU2 = 4 / -4.
Connect pump down pressostat on the digital input configured as pump down (In1 or In2 =
4 / -4). The compressor is directly controlled by pressostat. Connect evaporator solenoid
valve on the AUX1 (or AUX2) relay. The solenoid is controlled directly by thermostat.
PASSWORD FUNCTION
When parameter PA is setting with value different to 0 the protection function is activated.
See parameter P1 for the different protection.
When PA is setting the protection start after two minutes of inactivity. On display appear
000. With up/down modify the number, with set key confirm it.
Use universal number 100 if you don’t remember the password.
CHAP. 5 - Parameter programming
5.15
5.17
5.16
5.14