dIXEL
Installing and Operating Instructions
1592027320
1592027320 XW20LS RTC GB r1.0 10.07.2008.doc
XW20LS
4/5
3.
Automatically the parameter list of the
“Hot Key”
is downloaded into the Controller memory,
the “
doL
” message is blinking followed a by flashing
“End”.
4.
After 10 seconds the instrument will restart working with the new parameters.
5.
Remove the
“Hot Key”.
.
NOTE
the message “
Err
” is displayed for failed programming. In this case turn the unit off and then
on if you want to restart the download again or remove the “
Hot key
” to abort the operation.
14.
ALARM SIGNALS
Message
Cause
Outputs
“P1”
Room probe failure
Compressor output acc. to par. “Con” and “COF”
“P2”
Evaporator probe failure
Defrost end is timed
“P3”
Third probe failure
Outputs unchanged
“HA”
Maximum temperature alarm
Outputs unchanged.
“LA”
Minimum temperature alarm
Outputs unchanged.
"HA2"
Condenser high temperature
It depends on the “Ac2” parameter
"LA2"
Condenser low temperature
It depends on the “bLL” parameter
“dA”
Door open
Compressor and fans restarts
“EA”
External alarm
Output unchanged.
“CA”
Serious external alarm (i1F=bAL) All outputs OFF.
“CA”
Pressure switch alarm (i1F=PAL) All outputs OFF
“rtc”
Real time clock alarm
Alarm output ON; Other outputs unchanged;
Defrosts according to par. “IdF” Set real time clock
has to be set
rtF
Real time clock board failure
Alarm output ON; Other outputs unchanged;
Defrosts according to par. “IdF” Contact the
service
14.1
SILENCING BUZZER / ALARM RELAY OUTPUT
If “
tbA = y
”, the buzzer and the relay are is silenced by pressing any key.
If “
tbA
=
n
”, only the buzzer is silenced while the alarm relay is on until the alarm condition recovers.
14.2
ALARM RECOVERY
Probe alarms
P1
”, “
P2”,
“
P3
” start some seconds after the fault in the related probe; they
automatically stop some seconds after the probe restarts normal operation. Check connections
before replacing the probe.
Temperature alarms “
HA
”, “
LA
” “
HA2
” and “
LA2
” automatically stop as soon as the temperature
returns to normal values.
Alarms
“EA”
and
“CA”
(with i1F=bAL)
recover as soon as the digital input is disabled.
Alarm “
CA”
(with i1F=PAL) recovers only by
switching off and on
the instrument.
14.3
OTHER MESSAGES
Pon
Keyboard unlocked.
PoF
Keyboard locked
noP
In programming mode
: none parameter is present in Pr1
On the display
or in dP2, dP3, dP4: the selected probe is nor enabled
15.
TECHNICAL DATA
Housing:
self extinguishing ABS.
Case:
facia 38x185 mm; depth 48mm
Mounting :
panel mounting in a 150x31 mm panel cut-out with two screws.
∅
3 x 2mm.
Distance between the holes 165mm
Protection:
IP20;
Frontal protection:
IP65 with frontal gasket mod RG-L. (optional)
Connections:
Screw terminal block
≤
2,5 mm
2
heat-resistant wiring and 6,3mm Faston
Power supply:
230Vac or. 110Vac or 24Vac
±
10%;
Power absorption:
5VA max.
Display
: 3 digits, red LED, 14,2 mm high;
Inputs
: Up to 3 NTC or PTC probes.
Digital input
: 1 free voltage
Relay outputs:
Total current on loads MAX. 20A
compressor:
relay SPST 20(8) A, 250Vac
light:
relay SPST 7 A, 250Vac
Other output :
buzzer (optional)
Serial output :
TTL standard;
Communication protocol:
Modbus - RTU
Data storing
: on the non-volatile memory (EEPROM).
Internal clock back-up:
24 hours (only for model with RTC)
Kind of action:
1B;
Pollution grade:
2;
Software class:
A.;
Rated impulsive voltage
: 2500V;
Over voltage Category
: II
Operating temperature:
0÷60 °C;
Storage temperature:
-30÷85 °C.
Relative humidity:
20
÷
85% (no condensing)
Measuring and regulation range: NTC probe:
-40÷110°C (-40÷230°F);
PTC probe:
-50÷150°C (-58÷302°F)
Resolution:
0,1 °C or 1°C or 1 °F (selectable);
Accuracy (ambient temp. 25°C)
: ±0,7 °C ±1 digit
16.
CONNECTIONS
16.1
XW20LS – DRY CONTACTS
Supply: 120Vac or 24Vac:
connect to terminals 7-8
The X-REP
output
is optional
16.2
XW20LS – DIRECT CONNECTIONS OF LOAD
Supply: 120Vac or 24Vac:
connect to terminals 5-6
The X-REP
output
is optional
17.
DEFAULT SETTING VALUES
Label Name
Range
°C/°F
Level
Set
Set point
LS÷US
3.0 -
-
-
rtc*
Real time clock menu
-
-
Pr1
Hy
Differential
0,1
÷
25.5°C/ 1
÷
255°F
2.0 Pr1
LS
Minimum set point
-50°C
÷
SET/-58°F
÷
SET
-50.0 Pr2
US
Maximum set point
SET
÷
110°C/ SET
÷
230°F
110 Pr2
Ot
Thermostat probe calibration
-12
÷
12°C /-120
÷
120°F
0.0 Pr1
P2P
Evaporator probe presence
n=not present; Y=pres.
Y
Pr1
OE
Evaporator probe calibration
-12
÷
12°C /-120
÷
120°F
0.0 Pr2
P3P
Third probe presence
n=not present; Y=pres.
n
Pr2
O3
Third probe calibration
-12
÷
12°C /-120
÷
120°F
0 Pr2
OdS
Outputs delay at start up
0÷255 min
0
Pr2
AC
Anti-short cycle delay
0
÷
50 min
1 Pr1
rtr
P1-P2 percentage for regulation
0 ÷ 100 (100=P1 , 0=P2)
100
Pr2
CCt
Continuous cycle duration
0.0÷24.0h
0.0
Pr2
CCS
Set point for continuous cycle
(-55.0÷150,0°C) (-67÷302°F)
3.0
Pr2
COn
Compressor ON time with faulty probe
0
÷
255 min
15 Pr2
COF
Compressor OFF time with faulty probe
0
÷
255 min
30 Pr2
CH
Kind of action
cL÷Ht
cL Pr1
CF
Temperature measurement unit
°C
÷
°F
°C Pr2
rES
Resolution in=integer;
dE=
dec.point
dE
Pr1
Lod
Probe displayed
P1;P2
P1
Pr2
rEd
2
X-REP display
P1 – P2 – P3 – P4 – SEt – dtr
P1
Pr2
dLy
Display temperature delay
0 ÷ 20.0 min (10 sec.)
0.0
Pr2
dtr
P1-P2 percentage for display
1 ÷ 99
50
Pr2
EdF*
Kind of interval for defrost
rtc ÷in
in
Pr2
dFP
Probe selection for defrost termination
nP; P1; P2; P3; P4
nP
Pr2
dtE
Defrost termination temperature
-50
÷
50 °C
3 Pr1
IdF
Interval between defrost cycles
1
÷
120 ore
8 Pr1
MdF
(Maximum) length for defrost
0
÷
255 min
20 Pr1
dFd
Displaying during defrost
rt, it, SEt, DEF
it
Pr2
dAd
MAX display delay after defrost
0 ÷ 255 min
30
Pr2
ALP
Alarm probe selection
nP; P1; P2; P3; P4
P1
Pr2
ALc
Temperat. alarms configuration
rE= related to set;
Ab = absolute
Ab Pr2
ALU
MAXIMUM temperature alarm
Set
÷
110.0°C; Set÷230°F
110,0 Pr1
ALL
Minimum temperature alarm
-50.0°C
÷
Set/ -58°F
÷
Set
-50,0 Pr1
AFH
Differential for temperat. alarm recovery
(0,1°C÷25,5°C) (1°F÷45°F)
2,0
Pr2
ALd
Temperature alarm delay
0
÷
255 min
15 Pr2
dAO
Delay of temperature alarm at start up
0
÷
23h e 50’
1,3 Pr2
AP2
Probe for temperat. alarm of condenser
nP; P1; P2; P3; P4
nP
Pr2
AL2
Condenser for low temperat. alarm
(-55 ÷ 150°C) (-67÷ 302°F)
-40
Pr2
AU2
Condenser for high temperat. alarm
(-55 ÷ 150°C) (-67÷ 302°F)
110
Pr2
AH2
Differ. for condenser temp. alar. recovery
[0,1°C ÷ 25,5°C] [1°F ÷ 45°F]
5
Pr2
Ad2
Condenser temperature alarm delay
0 ÷ 254 (min.) , 255=nU
15
Pr2
dA2
Delay of cond. temper. alarm at start up
0.0 ÷ 23h 50’
1,3
Pr2
bLL
Compr. off for condenser low temper. alarm
n(0) - Y(1)
n
Pr2
AC2
Compr. off for condenser high temper alarm
n(0) - Y(1)
n
Pr2
i1P
Digital input polarity (13-14)
oP=opening;CL=closing
cL
Pr1
i1F
Digital input 1 configuration (13-14)
EAL, bAL, PAL, dor; dEF; Htr, AUS
dor
Pr1
did
Digital input alarm delay (13-14)
0÷255min
15
Pr1
Nps
Number of activation of pressure switch
0 ÷15
15
Pr2
odc
Compress status when open door
no; Fan; CPr; F_C
F-c
Pr2
rrd
Regulation restart with door open alarm
n – Y
y
Pr2
HES
Differential for Energy Saving
(-30°C÷30°C) (-54°F÷54°F)
0
Pr2
Hur*
Current hour
0 ÷ 23
-
rtc
Min*
Current minute
0 ÷ 59
-
rtc
dAY*
Current day
Sun ÷ SAt
-
rtc
Hd1*
First weekly holiday
Sun÷ SAt – nu
nu
rtc
Hd2*
Second weekly holiday
Sun÷ SAt – nu
nu
rtc
ILE*
Energy Saving cycle start during workdays
0 ÷ 23h 50 min.
0
rtc
dLE*
Energy Saving cycle length during workdays
0 ÷ 24h 00 min.
0
rtc
ISE*
Energy Saving cycle start on holidays
0 ÷ 23h 50 min.
0
rtc
dSE*
Energy Saving cycle length on holidays
0 ÷ 24h 00 min.
0
rtc
Ld1*
1
st
workdays defrost start
0 ÷ 23h 50 min. - nu
6.0
rtc
Ld2*
2
nd
workdays defrost start
0 ÷ 23h 50 min. - nu
13.0
rtc
Ld3*
3
rd
workdays defrost start
0 ÷ 23h 50 min. - nu
21.0
rtc
Ld4*
4
th
workdays defrost start
0 ÷ 23h 50 min. - nu
0.0
rtc
Ld5*
5
th
workdays defrost start
0 ÷ 23h 50 min. - nu
0.0
rtc
Ld6*
6
th
workdays defrost start
0 ÷ 23h 50 min. - nu
0.0
rtc
