1592025930 XEV23D GB r1.0 07.10.2011.doc
XEV23D
2/4
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.
VA
LV
E
TY
PE
BIPOLAR VALVES
(4 wires)
Maximum Current 0.9A
UNIPOLAR VALVES
(5-6 wires)
Maximum Current 0.33A
6. FRONT PANEL
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.
KEYS COMBINATIONS
+
To lock or to unlock
the keyboard
+
To enter
programming mode.
6.1 XEV23D 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
Valve is moving
ON
Valve is completely opened
BLINKING
Serial communication present
OFF
Serial communication absent
ON
Superheat alarm
7. USER INTERFACE
7.1 HOW TO: SEE THE READ-ONLY VALUES
1) Press and release
UP
button.
2) First read-only label is showed;
3) Brows parameter labels with
UP
or
DOWN
buttons.
4) Press
SET
to see read-only value. To change parameter, press
SET
.
5) 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) Press the
SET
buttons until the set point will be showed.
2) To come back to see temperature, wait about 5s or press newly
SET
key.
7.3 HOW TO: MODIFY THE SET POINT
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.
7.4 HOW TO: ENTERING “PR1” PARAMETER MENU
To enter in “Pr1” level menu:
1) Pressing
SET
+
DOWN
buttons for about 3 seconds.
2) Instruments shows first parameter in Pr1 menu
7.5 HOW TO: ENTERING “PR2” PARAMETER MENU
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 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.
Press the
SET
button to display the value.
4.
Use
UP
or
DOWN
to change the value.
5.
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.
8. PARAMETER LIST
NOTE: All pressure parameters are relatives or absolutes depending on the PrM parameter
REGULATION
SEt
SH Set point in Chill mode
(0,0 ÷ 24,0°C - 0 ÷ 43 °F)
St2
SH Set point in Heat Pump mode
(0,0 ÷ 24,0°C - 0 ÷ 43 °F)
FtY
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.
PEo
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.
PEd
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.
tEU
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.
tEP
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:
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
tEP
is different from 0, previous configuration of
LSt
,
uSt
,
Sr
,
CPP
and
CHd
will be overwritten.
HFS
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.
LSt
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.
USt
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.
ESt
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.
Sr
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.
CPP
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.
CHd
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.
oPE
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
.
SFd
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.
MnF
Maximum opening percentage at normal Functioning:
(0 to 100%) during regulation
it sets the maximum valve opening percentage.
