Emerson XEV22D Technical data

XEV22D
DRIVER FOR STEPPER ELECTRONIC EXPANSION
VALVES
--- MANUAL FOR RELEASE 0.8 ---
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
GENERAL WARNING ____________________________________________________________
GENERAL DESCRIPTION ________________________________________________________
WIRING CONNECTIONS _________________________________________________________
VALVE CONNECTIONS AND CONFIGURATION _____________________________________
ABSOLUTE MAXIMUM POWER ___________________________________________________
FRONT PANEL _________________________________________________________________
USER INTERFACE ______________________________________________________________
PARAMETER LIST ______________________________________________________________
DIGITAL INPUTS _______________________________________________________________
FORCED OPENING _____________________________________________________________
ELECTRICAL CONNECTIONS ____________________________________________________
RS485 SERIAL LINE _____________________________________________________________
HOW TO: USE THE HOT-KEY ____________________________________________________
DISPLAY MESSAGES ___________________________________________________________
TECHNICAL DATA ______________________________________________________________
STANDARD VALUES ____________________________________________________________
1
1
1
1
1
2
2
2
3
3
3
3
3
3
4
4
4. VALVE CONNECTIONS AND CONFIGURATION
!!!!!!!!!! WARNING !!!!!!!!!!!!!!
To avoid any possible problem, before connecting the valve configure the driver by making the right
changes on the parameters. Select the kind of motor (tEU parameter) and check if the valve is present
in tEP parameter table reported here below:
1. GENERAL WARNING
1.1
PLEASE READ BEFORE USING THIS MANUAL

This manual is part of the product and should be kept near the instrument for easy and quick
reference.
The instrument shall not be used for purposes different from those described hereunder. It cannot
be used as a safety device.
Check the application limits before proceeding.


1.2








SAFETY PRECAUTIONS
Check the supply voltage is correct before connecting the instrument.
Do not expose to water or moisture: use the controller only within the operating limits avoiding
sudden temperature changes with high atmospheric humidity to prevent formation of
condensation
Warning: disconnect all electrical connections before any kind of maintenance.
Fit the probe where it is not accessible by the End User. The instrument must not be opened.
In case of failure or faulty operation send the instrument back to the distributor or to “Dixell S.r.l.”
(see address) with a detailed description of the fault.
Consider the maximum current which can be applied to each relay (see Technical Data).
Ensure that the wires for probes, loads and the power supply are separated and far enough from
each other, without crossing or intertwining.
In case of applications in industrial environments, the use of mains filters (our mod. FT1) in
parallel with inductive loads could be useful.
tEP
Model
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Manual settings
Alco EX4-EX5-EX6
Alco EX7
Alco EX8 500
Danfoss ETS-25/50
Danfoss ETS-100
Danfoss ETS-250/400
Sporlan SEI 0.5-11
Sporlan SER 1.5-20
Sporlan SEI 30
Sporlan SER(I) G,J,K
Sporlan SEI 50
Sporlan SEH(I) 100
Sporlan SEH(I) 175
uSt
(steps*10)
Par
75
160
260
262
353
381
159
159
319
250
638
638
638
CPP
(mA*10)
Par
50
75
80
10
10
10
16
12
16
12
16
16
16
CHd
(mA*10)
Par
10
25
50
10
10
10
5
5
5
5
5
5
5
Sr
(step/s)
Par
500
500
500
300
300
300
200
200
200
200
200
200
200
If you can see your valve on the table, please select the valve through tEP parameter. In this way, you
can be sure of a right configuration.
About the connection, please pay attention to the following table to have a quick reference on the
connection mode for valves of different manufacturer. In any case, the unique and valid reference
has to be considered the datasheet made by manufacturer of the valve:
4 WIRES VALVES (BIPOLAR)
Connection
numbering
4
2
3
1
2. GENERAL DESCRIPTION
The XEV22D module is able to drive a large variety of stepper electronic expansion valves. XEV22D
permits to regulate the superheat (SH) of the fluid that runs into refrigerating unit in order to obtain
optimized performance and a functioning of the evaporator independent by climatic or load conditions.
XEV22D modules are equipped with two probe inputs, one for 4 to 20mA or 0 to 5V pressure
transducer and another one for NTC-EU or NTC-US temperature probe. A LAN connection permits to
transmit the pressure signal to others XEV modules in order to use only one pressure transducer in
multiplexed cabinet applications. There are also two configurable digital inputs, the first one is free of
voltage and the other ones is at high voltage in order to simplify connections with cooling request
signal. With the useful display it’s possible to see the value of superheat (SH), the degree of opening of
the valve or the probe values, the local keyboard allows to program the instrument without any other
devices. To complete instrument equipment, a RS485 serial link permits to connect XEV22D to dIXEL
monitoring and supervising systems.
LSt
(steps*10)
Par
5
10
10
7
10
11
0
0
0
0
0
0
0
SPORLAN
SEI-SEH
WHITE
BLACK
RED
GREEN
ALCO EX
BLUE
BROWN
BLACK
WHITE
DANFOSS
ETS
BLACK
WHITE
RED
GREEN
5-6 WIRES VALVES (UNIPOLAR)
Connection
numbering
4
2
3
1
5 – Common
3. WIRING CONNECTIONS
The superheat regulation is performed only when the cooling digital input is enabled. The following
scheme shows how the device takes the request of cooling:
SPORLAN
SAGINOMIYA
ORANGE
RED
YELLOW
BLACK
GRAY
ORANGE
RED
YELLOW
BLACK
GRAY
AFTER MAKING THE CONNECTION, PLEASE SWITCH OFF AND ON THE XEV CONTROLLER
IN ORDER TO BE SURE OF THE RIGHT POSITIONING OF THE VALVE.
5. ABSOLUTE MAXIMUM POWER
XEV22D is able to drive a wide range of stepper valves, in the following table are indicated the
maximum values of current that the actuator can supply to the stepper wiring. The dIXEL transformer to
use is the TF20D.
VALVE
TYPE
Please see the following scheme to make the right wirings. With "First Level" are indicated the
connections on the floor of the 4 DIN module and, of course, with "Second Level" the connections of
the 1st floor that are only for the stepper motor of the valve and for HOT-KEY.
NOTE: the electrical power absorption of the valve can be unrelated to refrigeration power that valve
has. Before using the actuator, please read the technical manual of the valve supplied by the
manufacturer and check the maximum current used to drive the valve in order to verify that they are
lower than those indicated below.
1592025920 XEV22D GB r3.0 02.02.2011.doc
XEV22D
BIPOLAR VALVES
(4 wires)
Maximum Current 0.9A
UNIPOLAR VALVES
(5-6 wires)
Maximum Current 0.33A
1/1
6. FRONT PANEL
8. PARAMETER LIST
To display and to modify the set point.
In programming mode it selects a
parameter or it confirms a value.
By pressing and releasing this key, it’s
possible to see the values of the
probes.
In programming mode it slides the
codes of the parameters or it
increases their values.
In programming mode it slides the
codes of parameters or it decreases
their values.
NOTE:
REGULATION
FtY
PEo
PEd
tEU
KEYS COMBINATIONS
6.1
+
To lock or to unlock
the keyboard
+
To enter
programming mode.
tEP
XEV22D LEDS
On display there are some luminous dots. Their meaning is described in the following table:
LED
MODE
Function
ON
Low pressure alarm
ON
Maximum Operating Pressure alarm
OFF
Valve is completely closed
BLINKING
ON
Valve is moving
Valve is completely opened
BLINKING
Serial communication present
OFF
Serial communication absent
ON
Superheat alarm
tEP
Model
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Manual settings
Alco EX4-EX5-EX6
Alco EX7
Alco EX8 500
Danfoss ETS-25/50
Danfoss ETS-100
Danfoss ETS-250/400
Sporlan SEI 0.5-11
Sporlan SER 1.5-20
Sporlan SEI 30
Sporlan SER(I) G,J,K
Sporlan SEI 50
Sporlan SEH(I) 100
Sporlan SEH(I) 175
HFS
7.1
HOW TO: SEE THE READ-ONLY VALUES
1)
2)
3)
4)
5)
Press and release UP button.
First read-only label is showed;
Brows parameter labels with UP or DOWN buttons.
Press SET to see read-only value. To change parameter, press SET.
To leave the fast access menu, press and release SET+UP or wait for time-out to expire (about 3
minutes).
7.2
HOW TO: SEE THE SET POINT
1)
2)
Press the SET buttons until the set point will be showed.
To come back to see temperature, wait about 5s or press newly SET key.
7.3
HOW TO: MODIFY THE SET POINT
LSt
USt
To change the set point value operate as follows:
1)
Press the SET button until the set point will be showed.
2)
Use UP or DOWN buttons to change its value.
3)
Press SET button to store the new value.
ESt
Sr
HOW TO: ENTERING “PR1” PARAMETER MENU
CPP
To enter in “Pr1” level menu:
1) Pressing SET+ DOWN buttons for about 3 seconds.
2) Instruments shows first parameter in Pr1 menu
CHd
oPE
7.5
HOW TO: ENTERING “PR2” PARAMETER MENU
SFd
To enter to “Pr2” parameters list:
1. Enter to “Pr1”.
2. Select “Pr2” parameter and press SET.
3. The “PAS” label will be shown, then “0--” with
0 blinking.
4. Insert “321” password through UP and
DOWN buttons, then press SET to confirm.
7.6
Sti
Std
MnF
FoP
HOW TO: CHANGE A PARAMETERS VALUE
To change the parameter’s value operate as
follows:
1.
Enter the Programming mode by
pressing the Set and DOWN button for
about 3s.
2.
Select the required parameter.
3.
4.
5.
Kind of gas: (R22, 134, 404, 407, 410, 507, CO2) type of gas used by plant. This is a
fundamental parameter for correct functioning of all system.
Probe Error opening percentage: (0 to 100%) if a temporary probe error occurs, valve
opening percentage is PEo until PEd time is elapsed. If PEO is different from 0 it
assures cooling also with probe error, because even if the device cannot calculate
superheat the valve can work at PEo percentage.
Probe Error delay before stopping regulation: (0 to 239sec; 240=On=unlimited) if
probe error duration is higher than PEd, valve will close completely and “Pf” message will
be showed. With PEd=on, valve opening is PEo until probe error finishes.
Type of Stepper motor: (UP; bP) it permits to select the kind of valve. UP = 5-6 wires
unipolar valves; bP = 4 wires bipolar valves. !!!!! WARNING !!!!! by changing this
parameter the valve has to be reinitialized.
Predefined valve selection: (0 to 13) if tEP=0 the user has to modify all the
parameters of configuration in order to use the valve. If tEP is different from 0 the
device performs a fast configuration of the following parameters: LSt, USt, Sr, CPP,
CHd. To select the right number please read the following table:
LSt
(steps*10)
Par
5
10
10
7
10
11
0
0
0
0
0
0
0
uSt
(steps*10)
Par
75
160
260
262
353
381
159
159
319
250
638
638
638
CPP
(mA*10)
Par
50
75
80
10
10
10
16
12
16
12
16
16
16
CHd
(mA*10)
Par
10
25
50
10
10
10
5
5
5
5
5
5
5
Sr
(step/s)
Par
500
500
500
300
300
300
200
200
200
200
200
200
200
If tEP is different from 0, previous configuration of LSt, uSt, Sr, CPP and CHd will be overwritten.
7. USER INTERFACE
7.4
All pressure parameters are relatives or absolutes depending on the PrM parameter.
Kind of motor movement: (HAF; FUL)

HAF = half step. Use this setting for the unipolar valve.

FUL = half step. Use this setting for the bipolar valve.
Minimum number of steps: (0 to USt (*10)) it permits to select the minimum number
of steps. At this number of steps the valve should be closed. So it’s necessary the
reading of manufacturer datasheet to set correctly this parameter. It’s the minimum
number of steps to stay in advised range of functioning. !!!!! WARNING !!!!! after
changing this parameter the valve will have to be reinitialized. The device
performs this procedure automatically and restarts its normal functioning when
the programming mode ends.
Maximum number of steps: (LSt to 800 (*10)) it permits to select the maximum
number of steps. At this number of steps the valve should be completely opened. Read
the datasheet provided by manufacturer of the valve to set correctly this parameter. It’s
the maximum number of steps to stay in advised range of functioning. !!!!! WARNING
!!!!! after changing this parameter the valve will have to be reinitialized. The
device performs this procedure automatically and restarts its normal functioning
when the programming mode ends.
Extra step in closing phase: (0 to 255 (*10)) it sets the number of extra steps the
controller performs, when the valve is closed at start up, to force the closure of the valve.
Step rate: (10 to 600 step/sec) it is the maximum speed to change step without losing
precision (=losing steps). It’s advised to stay under the maximum speed.
Current per phase (only bipolar valves): (0 to 100 (*10mA)) it is the maximum
current per phase used to drive valve. It’s used only with bipolar valves.
Holding current per phase (only bipolar valves): (0 to 100 (*10mA)) it is the current
per phase when the valve is stopped for more than 4 minutes. It’s used only with
bipolar valves.
Start opening Percentage: (0 to 100%) opening valve percentage when start function
is active and during post defrost phase. This phase duration is SFd time.
Start Function duration: (0.0 to 42min 00s, res. 10s) it sets start function duration and
post-defrost duration. During this phase the alarms are neglected.
Stop regulation interval: (0.0 to 24h 00min. res. 10min) after regulating continuously
for Sti time, the valve closes for Std time in order to prevent ice creation.
Stop duration: (0 to 60 min) it defines stop regulation time after Sti. During this stop
display shows StP message.
Maximum opening percentage at normal Functioning: (0 to 100%) during
regulation it sets the maximum valve opening percentage.
Forced Opening percentage: (0 to 100; nU) if FoP=nU valve works with regulation
algorithm. If FoP is different from nU the valve stays at FoP opening percentage. This
function could be useful during plant starting or during service operations.
PI PARAMETERS (trained staff)
Pb
Proportional band:
(0.1 to 50.0°C; 1 to 90°F)
PI proportional band. A value
bigger than 5°C is advised.
Press the SET button to display the value.
Use UP or DOWN to change the value.
Press SET to store the new value and move to the following parameter.
To exit: Press SET + UP or wait 30s without pressing any button.
NOTE: the set value is stored even when the procedure is exited by waiting the time-out to expire.
1592025920 XEV22D GB r3.0 02.02.2011.doc
XEV22D
2/2
rS
d1S
d2S
Band Offset:
(-12.0 to 12.0°C; -21 to 21°F)
PI band offset. It permits to
move the proportional band of
the PI. With rS=0 the band is
between [SEt to SEt+Pb].
inC
Adr
Mod
Ptb
rEL
Pr2
Integration time: (0 to 255s) PI integration time.
PROBE PARAMETERS
tPP
LPP
PA4
P20
oPr
ttE
otE
Type of Pressure transducer: (420; 5V; LAn) it sets type of pressure transducer to
use. 420 = 4 to 20mA pressure transducer; 5V = 0 to 5V ratiometric transducer; LAn =
the pressure signal comes from another XEV module.
Enable pressure probe sending in LAN: (n; Y) if LPP=Y the value of pressure read
by device is sent in LAN. Only one device of the LAN can have LPP=Y.
Probe value at 4mA or at 0V: (-1.0 to P20 bar; -14 to P20 psi) pressure value
measured by probe at 4mA or at 0V (related to PrM parameter).
Probe value at 20mA or at 5V: (PA4 to 50.0 bar; PA4 to 725 psi) pressure value
measured by probe at 20mA or at 5V (related to PrM parameter).
Pressure probe calibration: -12.0 to 12.0 bar; -174 to 174 psi.
Type of temperature probe: (PtM; ntC) it allows to set the kind of probe used by the
instrument: PtM = PT1000 probe, ntC = NTC-US probe.
Temperature probe calibration: -12.0 to 12.0°C; -21 to 21°F.
DIGITAL INPUTS
i1P
i1F
d1d
i2P
i2F
d2d
Digital Input 1 (Free of voltage) digital input polarity: (cL, oP) CL = activated when
closed; oP = activated when opened.
Digital Input 1 (Free of voltage) digital input function: (CCL, rL) CCL = cooling call;
rL = digital input activates relay.
Digital Input 1 (Free of voltage) activation delay: (0 to 255 min) this activation delay
is used only if digital input is configured as rL.
Digital Input 2 (High voltage) digital input polarity: (CL, oP) CL = activated when
closed; oP = activated when opened.
Digital Input 2 (High voltage) digital input function: (CCL, rL) CCL = cooling call;
rL = digital input activates relay.
Digital Input 2 (High voltage) activation delay: (0 to 255 min) this activation delay is
used only if digital input is configured as rL.
ALARM
dAo
tdA
LPL
MoP
LoP
PHY
dML
MSH
LSH
SHY
SHd
FrC
9. DIGITAL INPUTS
The device is provided with two digital inputs. One is free of voltage and the other is at high voltage
and both can be configured as cooling call. In this way the cooling signal can come from instruments
with direct load outputs or via instruments with output without voltage. One of these inputs must be
configured as cooling call.
10. FORCED OPENING
If necessary, by changing FoP parameter it’s possible to force the valve opening. For example, by
setting FoP=50 the valve will be open at half of full scale. To disable this function it’s necessary to
set FoP=nU (default value). The valve opening is enabled only when CCL digital input is enabled.
11. ELECTRICAL CONNECTIONS
The instrument is provided with pluggable screw terminal block to connect cables with a cross section
up to 2.5 mm2. Heat-resistant cables have to be used. Before connecting cables make sure the power
supply complies with the instrument’s requirements. Separate the probe cables from the power supply
cables, from the outputs and the power connections. Do not exceed the maximum current allowed on
each relay, in case of heavier loads use a suitable external relay.
11.1
CF
PMU
rES
PrM
CLP
tP1
PPr
tP2
oPP
PROBES
Advised temperature probe placement is
illustrated in figure nearby. Between 0 and 180
inclination degrees respect to horizontal pipe
section. For suction pressure probe there aren’t
any particular prescriptions
12. RS485 SERIAL LINE
Alarm delay after restarting regulation: (0.0 to 42min 00s, res. 10s) time between
digital input activation (configured as CCL) and alarm signalling. The LSH alarm is
always signalled also during this time.
Type of alarm signalled by relay: (ALL, SH, PrE, di) ALL = all alarm; SH = superheat
alarm; PrE = pressure alarm; di = activation only when digital input configured as rL is
active.
Lower Pressure Limit for superheat regulation: (PA4 to P20 bar; PA4 to P20 psi)
when suction pressure comes down to LPL, the regulation is performed with a LPL
fixed value for pressure. When suction pressure comes back to LPL, the normal
pressure value is used (related to PrM parameter).
Maximum Operating Pressure threshold: (LoP to P20bar; LoP to P20 psi) if suction
pressure exceeds maximum operating pressure value, the instrument signals this
situation with an alarm LED
(related to PrM parameter).
Lowest Operating Pressure: (PA4 to MoP bar; PA4 to MoP psi) if the suction
pressure comes down to this value, a low pressure alarm will be signalled with an alarm
LED
(related to PrM parameter).
Pressure alarm Hysteresis: (0.1 to 5.0 bar, 1 to 72 psi) pressure hysteresis to disable
alarm signalling.
Delta MoP-LoP: (0 to 100%) when a MoP alarm occurs valve will close of the dML
percentage every one second until MoP alarm is active. When LoP occurs, valve will
open of the dML percentage every one second until LoP alarm is active.
Maximum SuperHeat alarm: (LSH to 80.0°C; LSH to 144°F) when superheat exceeds
this value, an high superheat alarm will be signalled after interval SHd.
Lowest SuperHeat alarm: (0.0 to MSH°C; 0 to MSH°F) when superheat goes down to
this value a low superheat alarm is signalled after interval SHd.
SuperHeat alarm Hysteresis: (0.0 to 25.5°C; 1 to 77°F) hysteresis for superheat alarm
deactivation.
SuperHeat alarm activation delay: (0 to 255 s) when a superheat alarm occurs, the
delay time SHd have to expire before signalling this alarm.
Fast-recovery Constant: (0 to 100 s) permits to increase integral time when SH is
below the set-point. If FrC=0 fast recovery function is disabled.
All models can be connected to the monitoring and supervising system XWEB3000. If Mod=Std
standard ModBUS-RTU protocol is used, if Mod=AdU custom XWEB library is required. This last
configuration makes possible to use the same serial address of the thermostat that gives the cooling
request to XEV. In this way, it’s possible to reduce the number of addresses used.
13. HOW TO: USE THE HOT-KEY
13.1
PROGRAM A HOT KEY FROM THE INSTRUMENT (UPLOAD)
1)
2)
Program one controller with the front keypad.
When the controller is ON, insert the “Hot-Key” and push UP button; the “uPL” message
appears followed a by flashing “End”.
Push SET button and the “End” will stop flashing.
Turn OFF the instrument, remove the “Hot-Key” and then turn it ON again.
3)
4)
NOTE: the “Err” message is displayed in case of any failed programming operation. In this case, push
again UP button if you want to restart the upload again or remove the “Hot-key” to abort the operation.
13.2
PROGRAM AN INSTRUMENT USING A HOT KEY (DOWNLOAD)
1)
2)
3)
Turn OFF the instrument.
Insert a pre-programmed “Hot-Key” into the 5-PIN connector and then turn the Controller ON.
Automatically the parameter list present into the “Hot-Key” will be downloaded into the
Controller memory. The “doL” message will blink during this operation, followed a by a flashing
“End” label.
After 10 seconds the instrument will restart working with the new parameters.
Remove the “Hot-Key”.
4)
5)
NOTE: the “Err” message is displayed in case of any failed programming operation. In this case, push
again UP button if you want to restart the upload again or remove the “Hot-Key” to abort the operation.
14. DISPLAY MESSAGES
Mess.
“nA”
DISPLAY
Lod
Free of voltage digital input State (read only): it shows the free of voltage digital
input.
High voltage digital input State (read only): it shows the high voltage digital input
state.
RS485 Serial Address: (1 to 247) Identifies the instrument address when connected to
a ModBUS compatible monitoring system.
ModBus: (AdU; Std) AdU = (Only for XWEB systems) in this case XEV and
thermostatic controller are considered an alone instrument (it requires a custom library
for XWEB); Std = to use XEV in stand-alone mode, in this case normal Modbus-RTU
protocol is used.
Parameters map: (read only) it identifies parameters map written by factory.
Release Firmware: (read only) it shows firmware release.
Second level menu.
Local display: (SH; PEr; P1; P2) SH = superheat; PEr = valve opening percentage;
P1 = value of temperature measured; P2 = pressure measured by P2 probe.
Temperature measurement units: (°C; °F) °C = Celsius degree; °F = Fahrenheit
degree. NOTE: by changing measurement unit, the regulation parameters have to be
correctly changed.
Pressure Measurement units: (bAr, PSi) bAr = bar; PSi = psi. NOTE: by changing
measurement unit, the regulation parameters have to be correctly changed.
Resolution (only °C): (dE; in) dE = decimal format; in = integer format.
Pressure visualization Mode: (rEL; AbS) rEL = relative pressure; AbS = absolute
pressure. All pressure parameters depend on this parameter.
Cooling Percentage (read only): Display the cooling percentage.
Temperature Probe value (read only): it shows temperature probe value from P1.
Pressure probe value (read only): it shows pressure probe value. The value depends
on PrM.
Temperature from P2 (read only): it shows temperature obtained from conversion of
pressure value.
Opening Percentage (read only): it shows the actual opening percentage of the valve.
1592025920 XEV22D GB r3.0 02.02.2011.doc
“PF”
“P1”
“P2”
“HSH”
“LSH”
“LPL”
“MoP”
“LoP”
“StF”
“StP”
“EE”
14.1
Cause
None of digital inputs configured as CCL are
activated
The Ped time is elapsed and the regulation is
stopped
Temperature probe fault
Pressure transducer fault
High superheat alarm
Low superheat alarm
Low pressure limit
Maximum Operating Pressure
Lowest Operating Pressure
Start Function enabled
Regulation stop caused by Std and Sti
Memory error
Outputs
Valve closed
Valve closed after PEd. There is a probe
error
According to PEo and PEd.
According to PEo and PEd.
By PI
Valve Closed
see LPL parameter
see dML parameter
see dML parameter
see SFd parameter
Valve closed
-
ALARM RECOVERY
Probe alarms “P1”, “P2” start few seconds after the fault in the probe; they automatically stop few
seconds after the probe restarts normal operation. Check connections before replacing the probe. Max.
And min. Alarms “HSH”, “LSH”, “MoP” and “LoP” automatically stop as soon as the variable returns to
normal values.
XEV22D
3/3
The instrument is provided with an internal check verifying memory integrity. Alarm “EE” will flash when
a failure in the internal memory is detected. In such case call the service.
PMu
rES
PrM
CLP
tP1
PPr
tP2
oPP
d1S
d2S
Adr
Mod
Ptb
rEL
Pr2
15. TECHNICAL DATA
Housing: self extinguishing ABS.
Case: 4 DIN modules 70x135mm with male and female connectors; depth 60mm.
Mounting: DIN RAIL mounted in an omega (3) din rail.
Protection: IP20.
Connections: pluggable screw terminal block  2.5 mm2 wiring.
Power supply: 24Vac/dc ±10%.
Power absorption: depending on connected valve 20VA max.
Display: three digits with icons, red LEDs, height 14.2 mm.
Inputs: 1 temperature probe:
PT1000 probe: -50 to 110°C (-58 to 230°F).
NTC probe: -40 to 110°C (-40 to 230°F).
1 pressure transducer: 4 to 20mA or 0 to 5V.
Digital inputs: 1 free of voltage.
1 high voltage.
Outputs for valve: bipolar or unipolar valves.
Data storage: on the non-volatile memory (EEPROM).
Kind of action: 1B.
Pollution degree: normal.
Software Class: A.
Operating temperature: 0 to 55°C (32 to 131°F).
Storage temperature: -25 to 60°C (-13 to 140°F).
Relative humidity: 20 to 85% (no condensing).
Resolution: 0.1°C or 1°F.
Precision a 25°C (77°F): ±0.7°C ±1digit.
Pressure measurement unit
Resolution (only °C)
Type of pressure (Absolute / relative)
Cooling call percentage
Temperature probe value
Pressure probe value
Temperature converted from pressure probe
Acutal Opening percentage
Free of voltage digital input state
Main voltage digital input state
Serial address
Modbus type
Parameters map
Release software
Second level menu
bAr; PSi
dE; in
rEL; AbS
Read only
Read only
Read only
Read only
Read only
Read only
Read only
1 to 247
Std; AdU
-------
bAr
dE
rEL
--- -----------1
Std
-------
Pr2
Pr2
Pr2
Pr2
Pr1
Pr1
Pr1
Pr1
Pr1
Pr1
Pr2
Pr2
Pr2
Pr2
Pr1
16. STANDARD VALUES
Label
FtY
Description
Kind of gas
Peo
Probe Error opening percentage
Ped
Probe Error delay before stopping regulation
tEU
Type of Stepper motor
tEP
Automatic Valve configuration
HFS
Kind of driving
LSt
Minimum number of steps
USt
Maximum number of steps
ESt
Extra steps in closing phase
Sr
Step rate
CPP
Current per phase (only bipolar valves)
CHd
Holding current per phase (only bipolar valves)
oPE
Start opening Percentage
SFd
Start Function duration
Sti
Stop regulation interval
Std
Stop duration
MnF
Maximum opening percentage
FoP
Forced Opening time-out
PI PARAMETERS (trained staff)
Pb
Proportional band
rS
Band Offset
inC
Integration time
PROBE PARAMETERS
tPP
Type of pressure transducer
LPP
Enable pressure probe sending in LAN
Probe value at 4mA or at 0V (related to PrM
PA4
parameter)
Probe value at 20mA or at 5V (related to PrM
P20
parameter)
oPr
Pressure probe calibration
ttE
type of temperature probe
otE
Temperature probe calibration
DIGITAL INPUTS
i1P
Free of voltage digital input polarity
i1F
Free of voltage digital input function
d1d
Digital input 1 (free of voltage) activation delay
i2P
Main voltage digital input polarity
i2F
Main voltage digital input function
d2d
Digital input 2 (Main voltage) activation delay
ALARMS
dAo
Alarm delay after restarting regulation
tdA
Type of alarm signalled by relay
Lower pressure limit for superheat regulation
LPL
(related to PrM parameter)
Maximum operating pressure threshold (related
MoP
to PrM parameter)
Minimum suction pressure limit (related to PrM
LoP
parameter)
PHy
Pressure alarm Hysteresis
dML
delta MoP-LoP
MSH
Maximum superheat alarm
LSH
Lowest superheat alarm
SHY
Superheat hysteresis
SHd
FrC
DISPLAY
Lod
Superheat alarm activation delay
Fast-Recovery Constant
CF
Temperature measurement units
Local display
1592025920 XEV22D GB r3.0 02.02.2011.doc
Range
R22; 134; 404; 407;
410; 507; Co2
0 to 100 %
0 to 239 s; on
uP; bP
0 to 10
HAF; FUL
0; USt (*10)
LSt to 800 (*10)
0 to 255 (*10)
10 to 600 step/s
0 to 100 (*10mA)
0 to 100 (*10mA)
0 to 100 %
0.0 to 42min 00s, res. 10s
0.0 to 24h 00min, res. 10min
0 to 60 min
0 to 100 %
0 to 100 %; nU
[0.1 to 50.0°C]
[1 to 90°F]
[-12.0 to 12.0°C]
[-21 to 21°F]
0 to 255 s
[10.0°C]
[50°F]
[0.0°C]
[0°F]
120
420; 5V; LAn
n; Y
[-1.0 to P20 bar]
[-14 to P20 psi]
[ PA4 to 50.0 bar]
[PA4 to 725 psi]
[-12.0 to 12.0 bar]
[-174 to 174 psi]
PT1000; ntC
[-12.0 to 12.0°C]
[-21 to 21°F]
420
n
[-0.5 bar]
[-7 psi]
[11.0 bar]
[159 psi]
[0.0 bar]
[0 psi]
ntC
[0.0°C]
[0°F]
Pr2
Pr2
CL; oP
CCL; rL
0 to 255 min
CL; oP
CCL, rL
0 to 255 min
CL
CCL
0
CL
CCL
0
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
0.0 to 42min 00s, res. 10s
ALL; SH; PrE; Di
[PA4 to P20 bar]
[PA4 to P20 psi]
[LoP to P20 bar]
[LoP to P20 psi]
[PA4 to MoP bar]
[PA4 to MoP psi]
[0.1 to 5.0 bar]
[1 to 72 psi]
0 to 100%
[LSH to 80.0°C]
[LSH to 176°F]
[0.0 to MSH°C]
[0 to MSH°F]
[0.1 to 25.5°C]
[1 to 77°F]
0 to 255 s
0 to 100 s
10.0
ALL
[-0.5 bar]
[-7 psi]
[11.0 bar]
[159 psi]
[-0.5 bar]
[-7 psi]
[0.1 bar]
[1 psi]
30
[80.0°C]
[144°F]
[2.5°C]
[2°F]
[0.1°C]
[1°F]
120
50
Pr2
Pr2
SH; PEr; P1; P2
SH
[°C]
[°F]
Pr1
°C; °F
Default
Level
404
Pr2
50
on
bP
1
FUL
See tEP
See tEP
0
See tEP
See tEP
See tEP
85
1.3
0
0
100
nU
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr1
Pr1
Pr2
Pr1
Pr2
Pr2
XEV22D
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