Pego ECP200 STEPPER User manual

ELECTRONIC BOARD FOR STEPPER VALVE CONTROL
Software Rel.: 1
User manual
ENGLISH
ELECTRICAL BOARDS FOR REFRIGERATING INSTALLATIONS
READ AND KEEP
REV. 01-21
ENG
ECP200 STEPPER

ECP200 STEPPER
Page 2
OPERATION MANUAL
Rev. 01-21

ECP200 STEPPER
Page 3
OPERATION MANUAL
Rev. 01-21
INTRODUCTION
Page 4 1.1 General information
Page 5 1.2 Product identification codes
TECHNICAL SPECIFICATIONS
Page 6 2.1 Technical characteristics
Page 7 2.2 Warranty conditions
DATA PROGRAMMING
Page 8 3.1 Control panel
Page 8 3.2 Front keyboard
Page 9 3.3 LED Display
Page 10 3.4 Key combinations
Page 10 3.5 Setting and set point display
Page 11 3.6 First level programming
Page 11 3.7 List of first level variables
Page 12 3.8 Second level programming
Page 12 3.9 List of second level variables
Page 16 3.10 Third level programming
Page 16 3.11 List of third level variables
Page 18 3.12 Loading default settings based on the EEV variable
Page 19 3.13 Fourth level programming
Page 19 3.14 List of fourth level variables
Page 21 5.15 Refrigeration fluid temperature table
Page 21 5.16 Quick menu for variable display
Page 21 5.17 List of variables in the quick display menu
Page 22 5.18 Thermostat operating mode
Page 22 5.19 Password function
Page 22 5.20 Emergency operation in case of error E0
Page 22 5.21 Manual defrost activation
Page 23 5.22 Manually forced defrost stop
Page 23 5.23 Defrosting with thermostat resistors
Page 23 5.24 Hot gas defrosting
Page 23 5.25 Ambient temperature display after defrost
Page 23 5.26 Pump-Down function
Page 23 5.27 Initial start-up procedure
OPTIONS
Page 24 4.1 TeleNET monitoring / supervision system
Page 24 4.2 Network configuration with Modbus-RTU protocol
DIAGNOSTICS
Page 25 5.1 Diagnostics
ATTACHMENTS
Page 27 A.1 Connection Diagram
Page 29 A.2 Positioning and description of probes
Page 30 A.3 Valve connection
CHAP. 1
CHAP. 2
CHAP. 3
CHAP. 4
CHAP. 5
TABLE OF CONTENTS

ECP200 STEPPER
Page 4
OPERATION MANUAL
Rev. 01-21
GENERAL INFORMATION
DESCRIPTION:
The ECP200 STEPPER is a cell control electronic board for the management of
refrigeration systems with integrated control of the motorised electronic expansion valve
and consent for motorised condensing units.
It allows the complete management of all the components present in a refrigeration
system, such as the compressor, EEV Stepper, evaporator fans, defrosting resistors, cell
light and thermostat-controlled door anti-fog resistance.
APPLICATIONS:
-Management of the evaporation unit with electrical defrosting.
-Management of the bipolar motorised expansion valve.
KEY FEATURES:
-Compatible with 22 gas types: R404, R134, R22, R407A, R407F, R407H, R410A,
R450A, R507, R513A, R744(CO2), R449A, R290, R32, R448A, R452A, R600, R600A,
R1270, R1234ze, R23, R717(NH3).
-Easy valve parameter programming with 21 pre-set values for the most popular valves
on the market. Ability for manually defining valve parameters.
-Easy parameter programming with 4 pre-set values for the several applications of the
electronic expansion valve.
-Safety solenoid valve management with the system stopped.
-Possible connection to the backup battery module, allowing the stepper valve to close
in the absence of network power.
-Display and adjustment of the cell temperature, with decimal point.
-Evaporator temperature display from parameter.
-Configurable digital inputs.
-Activation/deactivation of system control.
-System alarm signal (probe error, minimum and maximum temperature alarm,
compressor protection).
-LED signalling of the system status and large displays.
-Easy to use keyboard.
-Evaporator fan management.
-Air-recirculation management in the anti-stratification function.
-Emergency operation in case of ambient probe breakage.
-Automatic and manual defrost management (static, resistor, cycle reversal, thermostat
resistors).
-Energy saving: day/night mode and intelligent defrosting.
-Consent for motorised condensing unit.
-Cell light activation with key on the panel or via Door switch.
-Integrated differential magnetic-thermal switch for protection and disconnection of the
refrigeration unit.
-Case in self-extinguishing ABS, with transparent access door to the differential
magnetic-thermal protective switch, with IP65 protection level, allowing its use as a
panel external to the cell.
-Two alarm/auxiliary relays with activation configurable by parameter.
CHAPTER 1: INTRODUCTION
1.1
Chap. 1 - Introduction

ECP200 STEPPER
Page 5
OPERATION MANUAL
Rev. 01-21
-RS485 for connection to the TeleNET supervision network or to a network with
Modbus-RTU protocol.
-Parameter import / export via USB.
-Software upgradeable via USB.
-Cell light activation with key on the panel or via Door switch.
-Integrated differential magnetic-thermal switch for protection and disconnection of the
refrigeration unit.
-Two alarm/auxiliary relays with activation configurable by parameter.
-RS485 for connection to the TeleNET supervision network or to a network with
MODBUS-RTU protocol.
-Parameter import / export via USB.
-Software upgradeable via USB.
PRODUCT IDENTIFICATION CODE
200SCH200STP Control and management board for motorised
electronic expansion valve, consent for
motorised condensing unit, defrosting resistors,
evaporator fans, solenoid valve, cell light, door
resistance and presence of all the electrical
protections required by regulations. Can be
connected to any type of stepper valve in the
market.
1.2
Chap. 1 - Introduction

ECP200 STEPPER
Page 6
OPERATION MANUAL
Rev. 01-21
TECHNICAL SPECIFICATIONS
Electronic board power supply
Voltage
12-24 Vac 10% 50-60Hz
12-24 Vdc
Maximum power consumption
15W
Maximum absorption allowed
(With all loads connected)
1,5W
General Features
Types of compatible temperature probes
Temperature probes: NTC 10K 1%
PT1000
Resolution
0.1 °C
Probe reading accuracy
± 0.5 °C
Reading range
-45 ÷ +99 °C
Types of compatible pressure probes
Pressure probe: 4/20 mA / radiometric 0-5 V
Output characteristics (voltage-free contacts)
Description
Relay installed
Compressor
(Relay 5A AC1)
Resistors
(Relay 5A AC1)
Fans
(Relay 5A AC1)
Cold room light
(Relay 16A AC1)
Alarm / Aux1
(Relay 5A AC1)
Aux2
(Relay 5A AC1)
STEPPER valve piloting
Nominal power
6W
CHAPTER 2: TECHNICAL SPECIFICATIONS
2.1
Chap. 2 - Technical specifications

ECP200 STEPPER
Page 7
OPERATION MANUAL
Rev. 01-21
WARRANTY CONDITIONS
The ECP200 STEPPER board is covered by warranty against all manufacturing defects for
24 months from the date of production.
In the event of a defect, the equipment must be shipped with appropriate packaging to our
Authorized Facility or Service Centre upon request of the return authorization number.
The Customer is entitled to the repair the defective equipment including labour and spare
parts. Transport costs and risks are borne entirely by the Customer.
Any intervention under warranty does not extend or renew the expiry of the same.
The warranty is voided in case of:
•Damage due to tampering, carelessness, inexperience or improper installation of the
equipment.
•Installation, use or maintenance not in accordance with the requirements and
instructions provided with the equipment.
•Repair operations carried out by unauthorised personnel.
•Damage due to natural phenomena such as lightning, natural disasters, etc.
In all these cases the costs for the repair will be borne by the customer.
Warranty service may be refused when the equipment is modified or transformed.
Under no circumstances will Pego S.r.l. be liable for any loss of data and information,
costs of substitute goods or services, damage to property, persons or animals, loss of
sales or income, interruptions of activities, any direct, indirect, incidental, property,
coverage, punitive, special or consequential damages caused in any way, whether
contractual, extra-contractual or due to negligence or other liability arising from the use of
the product or its installation.
Malfunction caused by tampering, impact, improper installation automatically voids the
warranty. It is mandatory to comply with all the instructions in the following manual and the
operating conditions of the equipment.
Pego S.r.l. declines all responsibility for possible inaccuracies contained in this manual, if
due to printing or transcription errors.
Pego S.r.l. reserves the right to make any changes to its products that it deems necessary
or useful, without affecting their essential characteristics.
Each new release of Pego product manuals replaces all previous releases.
For anything not expressly indicated, the legal provisions in force and in particular art.
1512 of the Italian Civil Code apply to the warranty.
For any dispute, the jurisdiction of the Court of Rovigo shall be deemed elected and
recognised by the parties.
Chap. 2 - Technical specifications
2.2

ECP200 STEPPER
Page 8
OPERATION MANUAL
Rev. 01-21
CONTROL PANEL
FRONT KEYBOARD

AUXILIARY RELAY COMMAND/SAVE PARAMETERS to USB
Manually controls the relay if parameter AU1/AU2=2.
If pressed for 3 seconds it accesses the parameter export/import menu via USB.

UP KEY / MUTE BUZZER ALARM
Increases values / Scrolls parameters up.
Mutes the audible alarm if present / Acquires an alarm (if the alarm has returned and
the bell is steady on, pressing this key turns off the bell while the alarm is acquired. If
pressed for 3 seconds together with the stand-by button, it allows access to the valve
adjustment menu (EEV parameters, level 3).

STAND-BY
Pressed for more than 1 second toggles the Stand-by state to the normal operating
state and vice-versa. Upon switching, a confirmation BEEP is generated.
In the stand-by state, the system stops and the display alternates the OFF word with
the temperature (if programmed, the alternate OFF word is not displayed)

AMBIENT TEMPERATURE SETTING
Displays the set-point. Allows you to set the set-point if pressed in combination with the
Down key or the UP key. Resets the audible alarm if present. If pressed for 3 seconds
together with the standby button, it allows access to the valve configuration menu
(STEPPER parameters, level 4).
CHAPTER 3: DATA PROGRAMMING
3.1









Chap. 3 - Data programming
3.2





ECP200 STEPPER
Page 9
OPERATION MANUAL
Rev. 01-21

DOWN / DEFROST
Pressed for more than 3 seconds activates manual defrost (if the activation conditions
are met).
Pressed for more than 3 seconds during defrosting, it ends the present defrosting.

CELL LIGHT
LED DISPLAY

VALUES OF AMBIENT TEMPERATURE / PARAMETERS

DOOR SWITCH/CELL LIGHT ICON
Led OFF = Door switch not active or not used and cell light off
Led ON = Cell light ON
Flashing LED = Active Door switch and cell light ON

EEV STEPPER OUTPUT STATUS ICON EEV Stepper output status (if enabled)
Led OFF = Motorised valve closed
Led ON = Motorised valve open

COLD CALL/COMPRESSOR RUNNING ICON
Led OFF = Cold call OFF
Led ON = Cold call ON
Flashing LED = Cold call ON but waiting for waiting time C1
FANS CALL ICON
Led OFF = Fans call OFF
Led ON = Fans call ON
DEFROST CALL ICON
Led OFF = Defrost call OFF
Led ON = Defrost call ON
Flashing LED = Dripping in progress after defrosting (see parameter d7)
REAL-TIME CLOCK ICON
Led OFF = Real-time defrosting clock disabled
Led ON = Real-time defrosting clock enabled
ALARM PRESENCE ICON
Led OFF = No alarm present
Led ON = Alarm activated and then returned
Flashing LED = Alarm present
DECIMAL POINT (flashing in night mode)
AUXILIARY (AUX relay call signal if AU1/AU2=+/-2 or +/-3)
3.3
Chap. 3 - Data programming

ECP200 STEPPER
Page 10
OPERATION MANUAL
Rev. 01-21
KEY COMBINATIONS
+
1ST-LEVEL PROGRAMMING
If pressed simultaneously for more than 3 seconds, they
allow access to the first level programming menu.
LEAVING THE PROGRAMMING
If pressed simultaneously for more than 3 seconds within
any programming menu.
+ +
2ND-LEVEL PROGRAMMING
If pressed simultaneously for more than 3 seconds, they
allow access to the second level programming menu.
The entry in this menu activates the stand-by.
+
3RD-LEVEL PROGRAMMING
(EEV parameters)
If pressed simultaneously for more than 3 seconds, they
allow access to the third level programming menu.
The entry in this menu activates the stand-by.
+
4TH-LEVEL PROGRAMMING
(stepper valve parameters)
If pressed simultaneously for more than 3 seconds, they
allow access to the fourth level programming menu. The
entry in this menu activates the stand-by.
+
QUICK MENU FOR VARIABLE DISPLAY
(READ ONLY)
If pressed simultaneously for more than 3 seconds, they
allow access to the quick variable display menu.
Within this menu the up and down arrows allow the display
of the variable label.
Pressing the Set key toggles the display of the label with its
value.
When the label value is displayed, pressing the up or down
arrow alternates the value display for the label display.
The leaving from this menu takes place automatically after 2
minutes of keyboard inactivity or by pressing up arrow +
down arrow.
SETTING AND SET-POINT DISPLAY
1. Press the "Set" key to display the current SET-POINT value (temperature).
2. Holding down the "Set" key and pressing one of the () or () keys changes the SET-POINT
value.
3. Release the "Set" key to return to the cell temperature display, the changes made will be
automatically saved.
Chap. 3 - Data programming
3.4
3.5

ECP200 STEPPER
Page 11
OPERATION MANUAL
Rev. 01-21
FIRST LEVEL PROGRAMMING (User level)
To access the first-level configuration menu you must:
1. Press simultaneously and hold for more than 3 seconds the () and () keys until the first programming
variable appears on the display.
2. Release the () and () keys.
3. Select with the () key or the () key the variable to be modified.
4. After selecting the desired variable you will be able to:
•Display the setting by pressing the SET key.
•Change the setting by holding down the SET key and pressing one of the () or () keys.
5. Once the configuration values have been set, to leave the menu, press and hold the () and () keys
for a few seconds until the cell temperature value reappears.
6. Changes made to the variables will be automatically saved when leaving the configuration menu.
LIST OF 1ST-LEVEL VARIABLES (User Level)
VAR.
MEANING
VALUES
DEFAULT
r0
Temperature difference referred to the main SET-POINT.
Defines the hysteresis of the temperature referred to the SET-POINT.
0.2 ÷ 10.0 °C
2.0 °C
d0
Defrost interval (hours).
With d0=0 and dFr=0 defrosts are excluded.
0 ÷ 24 hours
4 hours
d2
Defrosting end point: defrosting is not performed if the temperature
read by the defrosting probe is greater than the value d2 (in case of a
faulty probe defrosting is performed on time).
-35 ÷ 45 °C
15°C
d3
Maximum defrost duration (minutes)
1 ÷ 240 min
25 min
d7
Dripping duration (minutes): at the end of defrosting, the compressor
and fans remain stationary for the set time d7, the defrosting led on the
front of the panel flashes.
0 ÷ 10 min
0 min
F5
Fan pause after defrosting (minutes).
Allows the fans to remain stationary for a time F5 after dripping. This time
is counted from the end of the dripping. If the dripping is not set, at the
end of defrosting the fans pause immediately.
0 ÷ 10 min
0 min
A1
Minimum temperature alarm: absolute temperature referring to the
ambient probe under which, once the delay time Ald has elapsed, the
LOW temperature alarm is activated, which consists of activating the
Buzzer (if present), of the EL word that alternates with the temperature
on the display, and the flashing of the alarm presence icon. When the
alarm has returned, the "alarm presence" icon remains steady on to
indicate the intervention until the UP key is pressed.
-45.0 ÷ (A2-1)
°C
-45.0°C
A2
Maximum temperature alarm: absolute temperature referring to the
ambient probe above which, once the delay time Ald has elapsed, the
HIGH temperature alarm is activated, which consists of activating the
Buzzer (if present), of the EH word that alternates with the temperature
on the display, and the flashing of the alarm presence icon. When the
alarm has returned, the "alarm presence" icon remains steady on to
indicate the intervention until the UP key is pressed.
(A1+1) ÷ +99.0
°C
+99.0°C
dFr
Enabling of real-time defrosting of evaporators
With d0=0 and dFr=1 it is possible to set up to 6 real-time defrosts over a
day through the dF1…dF6 parameters.
0 = disabled
1 = enabled
0
dF1…
dF6
Evaporator defrosting time programming: you can set up to 6
defrosting times. The time is in the form HH.M where HH represents the
hour and M the tens of minutes (e.g. 0=0 min; 1=10 min, etc). The
flashing dot (.) indicates that a time is displayed and not a temperature.
00.0 ÷ 23.5
--
tdS
Start of day phase
00.0 ÷ 23.5
6.0
tdE
End of day phase
00.0 ÷ 23.5
22.0
3.6
3.7
Chap. 3 - Data programming

ECP200 STEPPER
Page 12
OPERATION MANUAL
Rev. 01-21
2ND-LEVEL PROGRAMMING (Installer level)
To access the second programming level you must:
1. Press and hold the UP (), DOWN (), and CELL LIGHT keys for more than 3 seconds.
When the first programming variable appears, the system automatically switches to standby.
2. Select with the () key or the () key the variable to be modified. After selecting the desired variable
you will be able to:
•Display the setting by pressing the SET key.
•Change the setting by holding down the SET key and pressing one of the () or () keys.
3. After the configuration values have been set, to leave the menu, press and hold the () and () keys
simultaneously for a few seconds until the cell temperature value reappears.At the exit of the menu an
audible signal will be emitted if the BUZZER is present.
Changes made to the variables will be automatically saved when leaving the configuration menu.
Press the STAND-BY key to enable the electronic control.
LIST OF THE 2ND-LEVEL VARIABLES (Installer level)
VAR
MEANING
VALUES
DEFAULT
F3
Evaporator fans operation
0 = Fans running continuously
1 = Fans operating only during cold call
2 = Fans DISABLED
1
F4
Fans pause during defrosting
0 = Fans operating during defrosting
1 = Fans not working during defrosting
1
F6
Evaporator fans activation for air
recirculation. The fans are activated for a
time defined by F7 if they have not entered
into operation for time F6.
If the activation time coincides with the
defrosting phase, the defrosting end is still
awaited.
0 ÷ 240 min
0 = function not activated
0 min
F7
Duration of the evaporator fans activation
for air circulation. Fan operating time for F6
0 ÷ 240 sec
10 sec
dE
Evaporator probe present
Excluding the evaporator probe, defrosting
occurs cyclically with period d0 and ends with
the end of the active defrost input or due to
expiration of time d3.
0 = evaporator probe present
1 = evaporator probe absent
0
d1
Defrosting type: resistance or with
thermostat resistance.
2 = resistance, thermostat
1 = hot gas (do not use. See Chap. 5.22)
0 = resistance
0
dPo
Defrost at start-up
0 = disabled
1 = defrost at start-up (if possible)
0
dSE
Intelligent defrosting
0 = disabled
1 = enabled
0
dSt
Intelligent defrost set point (if dSE=1): the
time count between defrosts is increased only
if the cold call is active and the evaporator
temperature is less than dSt.
-30 ÷ 30 °C
1 °C
dFd
Display view when defrosting
0 = current ambient temperature
1 = ambient temperature at the beginning
of defrosting
2 = “DEF”
1
Ad
Network address for connection to TeleNET
or Modbus supervisory system
0 ÷ 31 (with SEr=0)
1 ÷ 247 (with SEr=1)
0
SEr
Communication protocol to RS-485
0 = TeleNET Protocol
1 = Modbus-RTU protocol
0
3.8
3.9
Chap. 3 - Data programming

ECP200 STEPPER
Page 13
OPERATION MANUAL
Rev. 01-21
Bdr
Modbus baud rate
2 = 1200 baud
3 = 2400 baud
4 = 4800 baud
5 = 9600 baud
6 = 14400 baud
7 = 19200 baud
8 = 38400 baud
5
Prt
Parity bit Modbus
0 = no parity
1 = even parity (even)
2 = odd parity (odd)
0
Ald
Signal delay time and display of minimum
or maximum temperature alarm
0 ÷ 240 min
120 min
AtE
Temperature alarm enabling
0 = always enabled
1 = disabled in case of standby
2 = disabled if Door switch active
3 = disabled if standby or Door switch
active
0
C1
Minimum time between shut down and
subsequent cold call activation.
0 ÷ 15 min
0 min
CAL
Ambient probe value correction
-10.0 ÷ +10.0 °C
0.0 °C
CE1
Operating time ON, cold call in case of
faulty ambient probe.
(Emergency operation)
With CE1=0 the emergency operation in the
presence of error E0 remains disabled, the
cold call remains off and defrosting is inhibited
to preserve the residual cold.
0 ÷ 240 minutes
0 = disabled
0 min
CE2
Operating time OFF, cold call in case of
faulty ambient probe
5 ÷ 240 minutes
5 min
doC
Warning time cold call for door switch:
when opening the door switch the evaporator
fans turn off and the cold call will remain
active for the doC time and then turns off.
0 ÷ 5 minutes
0 min
tdo
Cold call reactivation time after opening
the door: when the Door switch is opened
and after the time tdo has elapsed, the normal
operation of the control is restored and an
“open door”alarm (Ed) is signalled
If the Door switch is closed and the light
remains on for a time longer than tdo, the cell
light alarm (E9) is signalled.
With tdo=0 the parameter is disabled.
0 ÷ 240 minutes
0 = disabled
0 min
Fst
FAN blocking TEMPERATURE
The fans will remain stationary if the
temperature value read by the evaporator
probe is higher than the value of this
parameter. The blocking is deactivated with
the evaporator probe disabled or in error.
-45 ÷ +99°C
+99°C
Fd
Differential for Fst
1 ÷ +10°C
2°C
LSE
Minimum allowable set-point value
-45 ÷ HSE-1°C
-45°C
HSE
Maximum setting value of the set-point
LSE+1 ÷ +99°C
+99°C
dnE
Day/night enabling (energy saving)
During night operation the decimal point
flashes.
0 = disabled
1 = enabled
0
nSC
SET correction factor during night
operation (energy saving, with In1 or In2 = 8
or -8).
During night operation the adjustment Set is:
Adjustment Set = Set + nSc
In night mode the decimal point flashes.
-20.0 ÷ +20.0 °C
0.0 °C
Chap. 3 - Data programming

ECP200 STEPPER
Page 14
OPERATION MANUAL
Rev. 01-21
StA
Auxiliary relay temperature setting
-45 ÷ +99°C
0
in1
INP-1 digital input setting
17 = tPF % fixed opening (N.O.)
16 = Compressor protection, display only (N.O., EcA)
15 = Condenser fan protection, display only (N.O., EFc)
14 = Evaporator fan protection, display only (N.O., EFE)
13 = Oil pressure switch protection (N.O., EcO)
12 = Minimum pressure switch protection (N.O., EcL)
11 = Maximum pressure switch protection (N.O., EcH)
10 = Pressure switch protection (N.O., EcP)
9 = Compressor thermal protection (N.O., Ect)
8 = Night entry (energy saving) (N.O.)
7 = Remote defrost stop (N.O., active on the ascent front)
6 = Start defrosting remotely (N.O., active on the ascent front)
5 = Remote stand-by (N.O.) To indicate the remote standby it is
displayed on the OFF display
4 = Pump-down pressure switch (N.O.)
3 = Man in cell 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 cell alarm (N.C.)
-4 = Pump-down pressure switch (N.C.)
-5 = Remote stand-by (N.C.) To indicate the remote standby it is
displayed on the OFF display
-6 = Start defrosting remotely (N.C., active on the descent front)
-7 = Stop defrosting remotely (N.C., active on the descent front)
-8 = Night entry (energy saving) (N.C.)
-9 = Compressor thermal protection (N.C., Ect)
-10 = Pressure switch protection (N.C., EcP)
-11 = Maximum pressure switch protection (N.C., EcH)
-12 = Minimum pressure switch protection (N.C., EcL)
-13 = Oil pressure switch protection (N.C., EcO)
-14 = Evaporator fan protection, display only (N.C., EFE)
-15 = Condenser fan protection, display only (N.C., EFc)
-16 = Compressor protection, display only (N.C., EcA)
-17 = tPF % fixed opening (N.C.)
1
In2
INP-2 digital input setting
As In1
2
In3
INP-3 digital input setting
As In1
3
In4
INP-4 digital input setting
As In1
4
bEE
Buzzer enabling
0 = disabled
1 = enabled
1
P1
Password:
type of protection
(active when PA is other than 0)
0 = displays only the set-point and allows tacit alarms
1 = displays the set-point, allows tacit alarms, + defrost +
light + aux key + access to the variable display only
menu
2 = blocks access to 1, 2, 3 and 4 level programming (all
other functions are allowed)
3 = blocks access to 2, 3 and 4 level programming (all
other functions are allowed)
4 = blocks access to 3 and 4 level programming (all other
functions are allowed)
5 = blocks access to 4-level programming (all other
features are allowed)
5
PA
Password
(see P1 for type of protection)
0...999
0 = function disabled
0
Chap. 3 - Data programming

ECP200 STEPPER
Page 15
OPERATION MANUAL
Rev. 01-21
AU1
Setting of Auxiliary Relay 1 /Alarm
(output with voltage-free contacts)
-7 (NO) = DO5 relay energised by the solenoid
valve control
-6 (NC) = Relay de-energised in standby
-5 (NC) = Contact for sump resistance command
(AUX relay closed if compressor output not
active). This output remains active even when
QE is in STANDBY mode.
-4 (NC) = Pump down function (see chap. 5.23)
-3 (NC) = Automatic auxiliary relay managed by
temperature set StA with 2°C difference
-2 (NC) = Manual auxiliary relay commanded by
the AUX key
-1 (NC) = Alarm relay
0 = Relay off
1 (NO) = Alarm relay
2 (NO) = Manual auxiliary relay commanded by
the AUX key
3 (NO) = Automatic auxiliary relay managed by
temperature set StA with 2°C difference
4 (NO) = Pump down function (see chap. 5.23)
5 (NO) = Voltage-free contacts motorised
condensing unit call (AUX relay in parallel
with compressor).
6 (NO) = Relay energised in standby
7 (NO) = DO5 relay energised by the solenoid
valve control
-1
AU2
Setting of Auxiliary Relay 2
(output with voltage-free contacts)
As in AU1
7
Yr
Year setting
0...99
20
Mo
Month setting
1...12
1
dy
Day setting
1...31
1
Hr
Time setting
0...23
12
min
Minutes setting
0...59
0
dEF
Reserved parameter
---
---
reL
Software release
read-only
read-only
Chap. 3 - Data programming

ECP200 STEPPER
Page 16
OPERATION MANUAL
Rev. 01-21
3RD-LEVEL PROGRAMMING (EEV PARAMETERS)
To access the third programming level you must:
1. Press and hold the UP () and STAND-BY keys for more than 3 seconds.
2. Select with the () key or the () key the variable to be modified. After selecting the desired variable
you will be able to:
•Display the setting by pressing the SET key.
•Change the setting by holding down the SET key and pressing one of the () or () keys.
3. Once the configuration values have been set, to leave the menu, press simultaneously and hold the ()
and () keys for a few seconds until the cell temperature value reappears.
4. Changes made to the variables will be automatically saved when leaving the configuration menu.
LIST OF 3RD-LEVEL VARIABLES (EEV PARAMETERS)
VAR.
MEANING
VALUES
DEFAULT
ESH
Overheating set-point.
0.1 ÷ +25.0 °C
6.0°C
EEV
EEV electronic valve management
With EEV=0 all related controls and reports are disabled.
The related errors of probes S4 (Intake temperature) and S5
(Evaporation pressure) are also disabled and excluded.
Settings 1 through 4 load the default values into the
ECt, EPb, EtI, Etd, ELS variables. When leaving the
programming: if the selected EEV value is different from
the one previously saved, the default values related to the
selection are loaded.
Pressing the Set key alone to see the current EEV value
does not load the default values.
0 = disabled
1 = EEV control (default 1)
2 = EEV control (default 2)
3 = EEV control (default 3)
4 = EEV control (default 4)
5 = EEV control (default 5)
6 = EEV control via Modbus
(register 1536)
(see table in Chap. 5.12)
1
ErE
Type of refrigeration GAS used.
Setting this parameter is of fundamental importance for
proper operation.
0 = R404
1 = R134
2 = R22
3 = R407A
4 = R407F
5 = R407H
6 = R410A
7 = R450A
8 = R507
9 = R513A
10 = R744 (CO2)
11 = R449A
12 = R290
13 = R32
14 = R448A
15 = R452A
16 = R600
17 = R600A
18 = R1270
19 = R1234ze
20 = R23
21 = R717 (NH3)
22 = R454C
0
EPb
Proportional band (gain) PID for overheating
adjustment.
1 ÷ 100%
15%
EtI
Full time PID algorithm for overheating adjustment
0 ÷ 500 sec
100
Etd
Derivative time PID algorithm for overheating
adjustment
0.0 ÷ 10.0 sec
2.0 sec
EOE
Percentage of EEV valve opening in case of probes S4
or S5 error. This function allows you to continue the
adjustment although not optimally in case of failure of
adjustment probes.
0 ÷ 100%
50%
ESO
During the Start phase the EEV valve opens at the ESO
percentage for the ESt time
0 ÷ 100%
85%
ESt
Duration of the Start phase. At this stage the MOP, LOP,
LSH alarms are disabled.
0 ÷ Edt tens of seconds
6 tens of
seconds
EdO
After Defrost the EEV valve opens at the EdO percentage
for the Edt time
0 ÷ 100%
100%
Edt
Duration of EdO valve opening phase after Defrost.
At this stage the MOP, LOP, LSH alarms are disabled.
Est ÷ 250 tens of seconds
24 tens of
seconds
EHO
Maximum opening percentage of the EEV valve: in the
case of an oversized valve, this variable allows limiting its
maximum opening to the set percentage.
0 ÷ 100%
100%
3.11
3.10
Chap. 3 - Data programming

ECP200 STEPPER
Page 17
OPERATION MANUAL
Rev. 01-21
EPt
Type of temperature transducer (S4): sets the type of
transducer used to detect the temperature (S4)
0 = NTC
1 = PT1000
2 = PTC (-45/80 °C)
0
EP4
Pressure (bar) corresponding to 4mA or 0V referred to
the evaporation pressure probe (S5).
-1.0 ÷ EP2 bar
0.0
EP2
Pressure (bar) corresponding to 20mA or 5V referred to
the evaporation pressure probe (S5).
EP4 ÷ 90.0 bar
12.0
CA4
Calibration of the Suction temperature transducer (S4)
-10.0 ÷ +10.0 °C
0.0
CA5
Calibration of the Evaporation pressure transducer (S5)
-10.0 ÷ +10.0 Bar
0.0
LSH
LSH threshold (Low overheating temperature)
Too low overheating values can cause liquid to return to the
compressor or strong oscillations.
Below the LSH value, the ELS protection intervenes, which
increases the speed of the PID when closing the valve, to
move to the setting of the set overheating.
0.0 ÷ Set SH °C
2.0 °C
ELS
LSH protection
If enabled, when tSH < LSH the PID integration time is set
based on the ELS selection from 1 to 7.
Setting 1 generates the fastest shut down.
Upon insertion of this protection, the SHd count for
activating the LSH alarm begins.
THE LSH PROTECTION TAKES PRECEDENCE OVER
THE LOP PROTECTION.
THE LSH PROTECTION IS NOT ACTIVATED DURING
THE START PHASE (ESt TIME), AND DURING THE
DEFROST OR POST-DEFROST PHASE (Edt TIME)
0 = LSH protection and related LSH
alarm signal disabled
1 = 5% EtI
2 = 10% EtI
3 = 15% EtI
4 = 20% EtI
5 = 25% EtI
6 = 30% EtI
7 = 35% EtI
8 = 50% EtI
9 = 100% EtI (no correction and only
the LSH alarm is activated)
2
SHd
LSH alarm activation delay:
the LSH overheating alarm is signalled only after it has remained
active for the time SHd. In case of LSH alarm, the valve closing is
still instantaneous.
The alarm is self-resetting and is cancelled when tSH ≥ LSH
With an active alarm you have:
-Flashing LSH word on the display
-Buzzer
0 ÷ 240
tens of seconds
30
MOP
MOP threshold (Maximum saturated evaporation temperature
referred to sensor S5). Represents the maximum evaporation
pressure, expressed in saturated degrees, above which the
MOP (EMO Parameter) protection is activated. In case of MOP
the control closes the valve gradually to limit the evaporation
temperature and prevent the compressor from stopping due to
thermal protection.
(LOP+1) ÷ +99°C
+45°C
EMO
MOP protection (active with tS5>MOP).
When the evaporation temperature (tS5) is above the MOP threshold,
the control interrupts the overheating adjustment and the valve closes
trying to limit the evaporation temperature (and therefore the pressure).
The closing speed of the valve depends, in addition to the difference
between the evaporation temperature and the MOP threshold, also on
the EMO integral time parameter: the lower it is the lower will be the
valve closing time. When this protection is inserted, the MOd count for
activating the MOP alarm begins. THE MOP PROTECTION IS NOT
ACTIVATED DURING THE START PHASE (ESt TIME), AND DURING
THE DEFROST OR POST-DEFROST PHASE (Edt TIME)
0 = MOP protection
disabled and also the
related MOP alarm signal
0 ÷ 500 seconds
In steps of 2 seconds
0
MOd
MOP alarm activation delay: the MOP alarm is signalled only
after the MOP protection has remained active for the MOd time.
The alarm is self-resetting when "S5 Temp"≤MOP
With an active alarm you have:
-Flashing MOP word on the display
-Buzzer
0 ÷ 240
tens of seconds
60

ECP200 STEPPER
Page 18
OPERATION MANUAL
Rev. 01-21
LOP
LOP threshold (minimum saturated evaporation
temperature referred to sensor S5). Represents the minimum
evaporation pressure, expressed in saturated degrees, below which
the LOP protection is activated. In case of LPO the control opens
the valve to prevent the compressor from stopping due to low
pressure (mechanical pressure switch).
-45°C ÷ (MOP-1)
-45°C
ELO
LOP protection (active with tS5 < LOP)
When the evaporation temperature (tS5) is below the LOP threshold,
the control stops the overheating adjustment and the valve opens. The
opening speed of the valve depends, in addition to the difference
between the evaporation temperature and the LOP threshold, also on
the integral time parameter ELO: the lower it is the higher the valve
opening speed will be. When this protection is activated, the LOd count
starts to activate the LOP alarm.
THE LSH PROTECTION TAKES PRECEDENCE OVER THE LOP
PROTECTION. THE MOP PROTECTION IS NOT ACTIVATED
DURING THE START PHASE (ESt TIME), AND DURING THE
DEFROST OR POST-DEFROST PHASE (Edt TIME)
0 = LOP protection
disabled and also the
related LOP alarm signal
0 ÷ 500 seconds
2 second steps
0
LOd
LOP alarm activation delay: the LOP alarm is signalled only
after it has remained active for the LOd time.
The alarm is self-resetting when "S5 Temp"≥ LOP
With an active alarm you have:
-Flashing LOP word on the display
-Buzzer
0 ÷ 240 tens of seconds
30
tPF
Valve forced positioning.
At any time via digital input (if the control is not in standby
mode) it is possible to force the valve to open at a
predetermined value.
0 ÷ 100 %
50%
Note: All LSH, MOP, LOP alarm calculation times are reset when the adjustment is stopped OR DURING
THE START PHASE (ESt TIME), AND DURING THE DEFROST OR POST-DEFROST PHASE (Edt TIME).
LOADING OF DEFAULT SETTINGS BASED ON THE EEV VARIABLE
EEV = 1
PEGO DEFAULT
EEV = 2
(CELL control or TN
REFRIGERATION
BENCH
with compressor on
board)
EEV = 3
(CELL control or BT
REFRIGERATION
BENCH with
compressor on
board)
EEV = 4
(CELL control or TN
CHANNELED
REFRIGERATION
BENCH)
EEV = 5
(CELL control or BT
CHANNELED
REFRIGERATION
BENCH)
ESH
6 °C
6 °C
6 °C
11 °C
11 °C
EPb
15 %
15 %
15 %
15 %
15 %
EtI
100 sec
100 sec
100 sec
150 sec
150 sec
Etd
2 sec
2 sec
2 sec
5 sec
5 sec
LSH
2 °C
2 °C
2 °C
5 °C
5 °C
ELS
2
2
2
2
2
MOP
+45 °C
5 °C
-15 °C
+5 °C
-15 °C
EMO
0
5
5
5
5
LOP
-45 °C
-25 °C
-45 °C
0
0
ELO
0
15
15
0
0
3.12

ECP200 STEPPER
Page 19
OPERATION MANUAL
Rev. 01-21
4TH-LEVEL PROGRAMMING (STEPPER VALVE PARAMETERS)
To access the fourth programming level press and hold the SET and STANDBY keys for more than 3
seconds. When the first programming variable appears, the system automatically switches to standby.
1. Select with the () key or the () key the variable to be modified. After selecting the desired variable,
you can view its setting by pressing the SET key.
2. Change the setting by holding down the SET key and pressing one of the () or () keys.
3. Once the configuration values have been set, to leave the menu, press simultaneously and hold the ()
and () keys for a few seconds until the principal visualisation reappears.
Press the STAND-BY key to enable the electronic control.
Changes made to the variables will be automatically saved when leaving the configuration menu. By entering
this menu the adjustment is interrupted and the valve is closed.
Possible electrical damage! => make changes in this programming level with the valve disconnected.
When leaving the valve is completely closed. At the first start it is necessary to set the type of valve
(parameter “tEU”). Parameters for coded valves cannot be changed (tEU >=1).
LIST OF 4TH-LEVEL VARIABLES (STEPPER VALVE PARAMETERS)
VAR.
MEANING
VALUES
DEFAULT
tEU
Type of motorised valve connected
Settings 1 through 21 load the default
values into the LSP, HSP, CSP, SPD,
ICF, ICM, SYN, TYP variables.
However, it is possible to change the
default values set automatically by
selecting tEU other than zero. Pressing
the Set key alone to see the current
EEV value does not load the default
values.
-2=Disables valve control (keeps cell control only)
-1= Valve not configured
0 = Custom (set EEV parameters)
1 = Carel EXV
2 = Danfoss ETS 25-50
3 = Danfoss ETS 100
4 = Danfoss ETS 250/400
5 = ETS 6 Danfoss
6 = Alco EX4
7 = Alco EX5
8 = Alco EX6
9 = Alco EX7
10 = Alco EX8 500
11 = Sporlan SEI 0.5-11
12 = Sporlan SER 1.5-20
13 = Sporlan SER(I) G, J, K
14 = Sporlan SEI 30
15 = Sporlan SEI 50
16 = Sporlan SEH 100
17 = Sporlan SEH 175
18 = Castel 261 / 271 Eliwell SXVB261
19 = Castel 262 / 263 Eliwell SXVB262 / SXVB263
20 = Castel 272 / 273
21 = Castel 264 / 274 Eliwell SXVB264
-1
LSP
Minimum number of steps: allows you to select the minimum
number of valve steps at which the valve is to be considered completely
closed. You must read the valve manufacturer's manual to set this
parameter correctly. It is the minimum number of steps to remain within
the operating range recommended by the manufacturer.
0 ÷ HSP-1
(10*steps)
---
HSP
Maximum number of steps: Allows you to select the maximum
number of steps that can be performed by the valve. At this number of
steps, the valve should be fully open. You must read the valve
manufacturer's manual to set this parameter correctly. It is the
maximum number of steps to remain within the operating range
recommended by the manufacturer.
LSP+1 ÷ CSP
(10*steps)
---
3.13
3.14
Chap. 3 - Data programming

ECP200 STEPPER
Page 20
OPERATION MANUAL
Rev. 01-21
CSP
Closing steps. Number of additional steps to achieve the complete
closing of the valve, it is used to realign the valve to the physical
position of fully closed. Driver and valve are then ready for adjustment
and both aligned to 0 (zero). Then the forced closing is performed when
the controller is switched on and also periodically, to realign the valve
position to the position calculated by the driver.
HSP ÷ 999
(10*steps)
---
Spd
Rated speed. Maximum motor movement speed without loss of steps
and therefore without loss of precision. It is necessary to remain below
the maximum speed available for the valve.
0 ÷ 999 steps/sec
---
ICF
Rated current per phase (bipolar valves): is the current per phase
used by the valve during adjustment.
NB: Consult the manufacturer's manual.
BWI+1 ÷ 800 mA
---
BWI
Stopping current (bipolar valves): is the current per phase when
the valve has been stopped for at least 5 minutes.
0 ÷ ICF-1 mA
---
dut
Valve duty cycle. Fraction of time during which the valve is
checked.
10 ÷ 100 %
100
SYN
Synchronization active
Every time the valve has to be fully opened or closed a
number of extra steps are performed to arrive at the complete
opening/closing of the valve
0 = off
1 = activated in opening
2 = activated in closing
3 = activated in opening
and closing
0
CTr
Adjustment type: sets the type of adjustment of the stepper
motor current. A microstep or half-step control ensures a
smoother movement (there is current modulation) but this
causes torque reduction. With the full-step control the windings
are always adjusted to the maximum current but the movement
is quicker.
0 = Microstep
1 = Full –step
2 = Half - step
0
Loading default settings based on the tEU variable:
tEU
LSP
(x10)
step
HSP
(x10)
step
CSP
(x10)
step
Spd
(step/s)
ICF
(mA)
BWI
(mA)
SYN
-1= Valve not configured
---
---
---
---
---
---
---
0 = Custom
5
48
50
50
450
100
1
1 = Carel EXV
5
48
50
50
450
100
1
2 = Danfoss ETS 25-50
7
262
262
300
100
100
1
3 = Danfoss ETS 100
10
353
353
300
100
100
1
4 = Danfoss ETS 250/400
11
381
381
300
100
100
1
5 = NOT USED
0
48
52
30
260
260
1
6 = Alco EX4
10
75
75
500
500
100
1
7 = Alco EX5
10
75
75
500
500
100
1
8 = Alco EX6
10
75
75
500
500
100
1
9 = Alco EX7
10
160
160
500
750
250
1
10 = Alco EX8 500
10
260
260
500
800
500
1
11 = Sporlan SEI 0.5-11
10
160
360
200
200
50
1
12 = Sporlan SER 1.5-20
10
160
360
200
200
50
1
13 = Sporlan SER(I) G, J, K
10
250
350
200
200
50
1
14 = Sporlan SEI 30
20
319
360
200
200
50
1
15 = Sporlan SEI 50
40
639
750
200
200
50
1
16 = Sporlan SEH 100
40
639
750
200
200
50
1
17 = Sporlan SEH 175
40
639
750
200
200
50
1
18 = Castel 261 / 271
Eliwell SXVB261
0
42
51
35
200
50
2
19 = Castel 262 / 263
Eliwell SXVB262 / SXVB263
0
20
25
20
200
50
2
20 = Castel 272 / 273
0
42
51
35
300
50
2
21 = Castel 264 / 274
Eliwell SXVB264
0
99
113
70
560
50
2
Chap. 3 - Data programming