1592023040 XM668D GB r1.1 2011.07.05.doc
XM668D
4/14
Action
Button or
display
Notes
Enter
menu
Press UP arrow for about 3 sec, the
icon will be
ON.
Waiting
for action
SEC
The menu to change the section will be entered.
SEC
label will be displayed.
Enter
section
list
Press
SET
to confirm. The following list will be
available to select the proper network function.
Select
proper
function
Or
LOC
ALL
SE1
SEn
SE8
To gain access only to the local device.
To gain access to all the devices connected to the
LAN.
To gain access to the device with 1st
Adr
(*)
…
To gain access to the device with 8th
Adr
(*)
Confirm
Select and confirm an entry by pressing
SET
button.
Exit menu
Press
SET
and
UP
together or wait about 10
seconds.
(*) The devices on the LAN are indexed by using the
Adr
parameter (in ascending
order).
EXAMPLES:
1.
To modify the same parameter values in all the devices connected to the LAN:
enter multimaster menu. Select and confirm
ALL
. Exit from multimaster menu.
Enter the programming menu and change the required parameter values.
The new values will be changed on all devices connected to the LAN.
2.
To modify a parameter value in the device with [
Adr = 35
]: find the relevant
indexed section (the one linked to [
Adr = 35
]). Enter multimaster menu. Select
and confirm this section from the multimaster menu. Exit from multimaster
menu. Enter the programming menu and change the required parameter value.
3.
If the alarm
nod
is present: enter the multimaster menu. Select and confirm the
LOC
section. Exit from multimaster menu.
AT THE END OF THE PROGRAMMING PROCEDURE, SELECT THE
SECTION “LOC”. IN THIS WAY THE ICON
WILL BE SWITCHED OFF!!
9.
COMMISSIONING
9.1
CLOCK SETTING AND RTC ALARM RESET
Parameter configuration: [
CbP = Y
] enable the clock, [
EdF = rtC
] enable the defrost
from rtc
Ld1...Ld6
.
BEGIN
UP arrow (press once) to access the fast access
menu
Display
HM
identify the clock RTC submenu; press
Display
HUr
= hour
press
to confirm/modify
Min
= minutes
press
to confirm/modify
……
don’t use
others parameters if present.
EXIT
Press for about 10 sec. The operation resets the RTC
alarm.
Note:
the
rtC
clock menu is present also on the second level of parameters.
Warning
: if the board shows the
rtF
alarm, the device has to be changed.
9.2
ELECTRONIC VALVE SETTINGS
Some parameters have to be checked:
[1]
Superheat temperature probe
: Ntc, Ptc, Pt1000 with parameter
P6C
. The
sensor has to be fixed at the end of the evaporator.
[2]
Pressure transducer
: [4 to 20mA] or ratiometric
P5C = 420
or
5Vr
with
parameter
P5C.
[3]
Range of measurement
: check the parameter of conversion
PA4
and
P20
that
are related to the transducer.
TRANSDUCER
: [-0.5/7Bar] or [0.5/8Bar abs] the correct setup is relative pressure
with PA4 = -0.5 and P20 = 7.0. The [0.5/12Bar abs] the correct setup is relative
pressure with PA4 = -0.5 and P20 = 11.00.
Example of virtual pressure with unique [4 to 20mA] or [0 to 5V] transducer:
Param.
XM6x8D_1
without transducer
XM
with
transducer
X
without transducer
Adr
n
n + 1
n + 2
LPP
LPP = n
LPP = Y
LPP = n
P5C
LAN or not connect
the probe
P5C= 420 or 0-5V
LAN or not connect
the probe
PA4
Not used
-0.5 bar
Not used
P20
Not used
7.0 bar
Not used
[4]
From
EEV submenu
: select the correct kind of gas with
FTY parameter.
[5]
Use the following parameters to setup the right valve driving, according to the
valve datasheet from the manufacturer.
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 10] 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 step/s
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 .5 to 11
0
159
16
5
200
8
Sporlan SER 1.5 to
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 are
overwritten.
LSt
Minimum number of steps:
[
0
to
USt
] 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 !!!!! By changing this parameter the valve has
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 !!!!! By changing this parameter the
valve has to be reinitialized. The device performs this procedure
automatically and restarts its normal functioning when the programming
mode ends.
Sr
Step rate
[10 to 600 step/sec] it’s the maximum speed to change step without
losing precision (means without losing steps). It’s advised to stay under the
maximum speed.
CPP Current per phase (only bipolar valves):
[0 to 100*10mA] it’s 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’s the
current per phase when the valve is stopped for more than 4 minutes. It’s used
only with bipolar valves
.
9.3
ELECTRONIC VALVE FUNCTIONING
ON/OFF TEMPERATURE REGULATION
[CrE = n]
1.
The
HY
parameter is a differential [2°C default].
2.
The temperature regulation is ON/OFF with valve stop at set point.
3.
The superheat is regulated to be closer to its set point.
4.
With more pauses normally also the humidity is bigger.
5.
Regulation pauses can be realized using
Sti
and
Std
parameters (during these
pauses the valve is closed).
COUNTINUOUS REGULATION OF THE TEMPERATURE [CrE=Y] (with superheat
regulation)
:
1.
The
HY
parameter becomes temperature band for PI control. A default good
value is
5°C.
2.
The regulation of injection is continuous and the cooling output is always on.
The icon
is always ON excluding the defrost phase.
3.
The superheat is regulated following the
SSH
parameter.
4.
Regulation pauses can be realized using
Sti
and
Std
parameters (during these
pauses the valve is closed).
5.
Increasing the
Int
integral time it is possible to decrease the speed of reaction
of the regulator on the
HY
band.
COUNTINUOUS REGULATION OF THE TEMPERATURE [CrE=Y] (without
superheat regulation)
:
1.
The
HY
parameters become temperature band for PI control. A default good
value is
5°C.
2.
The regulation of injection is continuous and the cooling output is always on.
The icon
is always ON excluding the defrost phase.
3.
The superheat is not regulated because the valve is at the end of the
evaporator. At the beginning of the evaporator there is another valve.
4.
Regulation pauses can be realized using
Sti
and
Std
parameters (during these
pauses the valve is closed).
5.
Increasing the
Int
integral time it is possible to decrease the speed of reaction
of the regulator on the
HY
band.
9.4
SYNCHRONIZED DEFROST
The synchronized defrost allow to manage multiple defrost from different boards
connected through the LAN connection. In this way, the boards can perform
simultaneous defrosts with the possibility to end them in a synchronized way.
