1592025930 XEV23D GB r1.0 07.10.2011.doc
XEV23D
1/4
XEV23D
DRIVER FOR STEPPER ELECTRONIC EXPANSION
VALVES
--- MANUAL FOR RELEASE 1.2 ---
1.
GENERAL WARNING.........................................................................................................................1
2.
GENERAL DESCRIPTION..................................................................................................................1
3.
WIRING CONNECTIONS ...................................................................................................................1
4.
VALVE CONNECTIONS AND CONFIGURATION.............................................................................1
5.
ABSOLUTE MAXIMUM POWER........................................................................................................1
6.
FRONT PANEL ...................................................................................................................................2
7.
USER INTERFACE.............................................................................................................................2
8.
PARAMETER LIST .............................................................................................................................2
9.
DIGITAL INPUTS ................................................................................................................................3
10. FORCED OPENING............................................................................................................................3
11. ELECTRICAL CONNECTIONS...........................................................................................................3
12. RS485 SERIAL LINE...........................................................................................................................3
13. HOW TO: USE THE HOT-KEY...........................................................................................................3
14. DISPLAY MESSAGES........................................................................................................................4
15. TECHNICAL DATA..............................................................................................................................4
16. STANDARD VALUES .........................................................................................................................4
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.
2. GENERAL DESCRIPTION
The
XEV23D
module is able to drive a large variety of
stepper electronic expansion valves
. XEV23D
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.
XEV23D
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. There are also two configurable digital
inputs, the first one is free of voltage and the other
ones is free of voltage
to pass from the chilling to
the heat-pump model. 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
XEV23D to dIXEL monitoring and supervising systems.
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:
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.
4. VALVE CONNECTIONS AND CONFIGURATION
WARNINGS
1. To avoid possible problems, 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.
2. The max distance between an XM controller and a valve
must not exceed 10 m
. To avoid
any problems, use only
shielded cables
with section greater than or equal to 0.325 mm²
(AWG22).
tEP
Model
LSt
(steps*10)
uSt
(steps*10)
CPP
(mA*10)
CHd
(mA*10)
Sr
(step/s)
0
Manual settings
Par
Par
Par
Par
Par
1
Alco EX4-EX5-EX6
5
75
50
10
500
2
Alco EX7
10
160
75
25
500
3
Alco EX8 500
10
260
80
50
500
4
Danfoss ETS-25/50
7
262
10
10
300
5
Danfoss ETS-100
10
353
10
10
300
6
Danfoss ETS-250/400
11
381
10
10
300
7
Sporlan SEI 0.5-11
0
159
16
5
200
8
Sporlan SER 1.5-20
0
159
12
5
200
9
Sporlan SEI 30
0
319
16
5
200
10
Sporlan SER(I) G,J,K
0
250
12
5
200
11
Sporlan SEI 50
0
638
16
5
200
12
Sporlan SEH(I) 100
0
638
16
5
200
13
Sporlan SEH(I) 175
0
638
16
5
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
ALCO EX
SPORLAN
SEI-SEH
DANFOSS
ETS
4
BLUE
WHITE
BLACK
2
BROWN
BLACK
WHITE
3
BLACK
RED
RED
1
WHITE
GREEN
GREEN
5-6 WIRES VALVES (UNIPOLAR)
Connection
numbering
SPORLAN
SAGINOMIYA
4
ORANGE
ORANGE
2
RED
RED
3
YELLOW
YELLOW
1
BLACK
BLACK
5 – Common
GRAY
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
XEV23D
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
.
