dixell XW60LS User manual

dIXEL
Operating Instructions 1592009367
1592009367 XW60LS GB rel.1.0 27.10.06.doc XW60LS 1/4
XW60LS
Multifunction digital controller for refrigeration
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 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
Model XW60LS, 38x185 mm format, is microprocessor based controller suitable for applications
on medium or low temperature refrigerating units. It is provided with 3 relay outputs to control
compressor, defrost - which can be either electrical or hot gas - and the evaporator fans.
It is also provided with 2 NTC probe inputs, one for temperature control, one to control the
defrost end temperature of the evaporator. An output allows the user to programme the
parameter list with the “Hot Key”.
3. CONTROLLING LOADS
3.1 THE COMPRESSOR
The regulation is performed according to the temperature measured by the thermostat probe
with a positive differential from the set point: if the temperature increases and reaches set point
plus differential the compressor is started and then turned off when the temperature reaches the
set point value again.
In case of fault in the thermostat probe the start and stop of the compressor are timed through
parameters “COn” and “COF”.
3.2 FAST FREEZING
When defrost is not in progress, it can be activated the keypad by holding the okey pressed
for about 3 seconds. The compressor operates in continuous mode for the time set through the
“CCt” parameter. The cycle can be terminated before the end of the set time using the same
activation key, ofor about 3 seconds.
3.3 DEFROST
Two defrost modes are available through the “tdF” parameter: defrost with electrical heater or
hot gas. The defrost interval is control by means of parameter “EdF”: (EdF=in) the defrost is
made every “IdF” time, (EdF=Sd) the interval “IdF” is calculate through Smart Defrost algorithm
(only when the compressor is ON).
3.4 CONTROL OF EVAPORATOR FANS
The fan control mode is selected by means of the “FnC” parameter:
FnC= C-n fans will switch ON and OFF with the compressor and not run during defrost:;
FnC= O-n fans will run continuously, but not during defrost
FnC= C-y fans will switch ON and OFF with the compressor and run during defrost;
FnC= O-y fans will run continuously also during defrost
After defrost, there is a timed fan delay allowing for drip time, set by means of the “Fnd”
parameter.
An additional parameter “FSt” provides the setting of temperature, detected by the evaporator
probe, above which the fans are always OFF. This can be used to make sure circulation of air
only if his temperature is lower than set in “FSt”.
4. THE FRONT FRAME
C
To display and modify target set point; in programming mode it selects a parameter
or confirm an operation.
By holding it pressed for 3s when max or min temperature is displayed it will be
erased.
To see the max. stored temperature; in programming mode it browses the parameter
codes or increases the displayed value. By holding it pressed for 3s the fast freezing
cycle is started.
To see the min stored temperature; in programming mode it browses the parameter
codes or decreases the displayed value.
By holding it pressed for 3s the defrost is started.
Switch ON and OFF the instrument.
KEY COMBINATIONS
+
To lock and unlock the keyboard.
+
To enter the programming mode.
+
To exit the programming mode.
4.1 USE OF LEDS
Each LED function is described in the following table.:
LED MODE Function
ON The compressor is running
FLASHING - Programming Phase (flashing with LED )
- Anti-short cycle delay enabled
ON The fan is running
FLASHING Programming Phase (flashing with LED )
ON The defrost is enabled
FLASHING Drip time in progress
ON The Fast Freezing cycle is enabled
ON - ALARM signal
- In “Pr2” indicates that the parameter is also present in “Pr1”
4.2 HOW TO SEE THE MIN TEMPERATURE
1. Press and release the nkey.
2. The “Lo” message will be displayed followed by the minimum temperature
recorded.
3. By pressing the nkey or waiting for 5s the normal display will be restored.
4.3 HOW TO SEE THE MAX TEMPERATURE
1. Press and release the okey.
2. The “Hi” message will be displayed followed by the maximum temperature
recorded.
3. By pressing the okey or waiting for 5s the normal display will be restored.
4.4 HOW TO RESET THE MAX AND MIN TEMPERATURE RECORDED
To reset the stored temperature, when max or min temperature is displayed :
1. Press SET key until “rST” label starts blinking.
N.B. After the installation RESET the temperature stored .
4.5 HOW TO SEE AND MODIFY THE SET POINT
1. Push and immediately release the SET key: the display will show the Set point
value;
2. The SET LED start blinking;
3. To change the Set value push the o or narrows within 10s.
4. To memorise the new set point value push the SET key again or wait 10s.
4.6 TO START A MANUAL DEFROST
1. Push the DEF key for more than 2 seconds and a manual defrost will start.
4.7 PER ACCEDERE AI PARAMETRI IN “PR1”
Per entrare nel menu parametri “Pr1” accessibili dall’utente:
1. Enter the Programming mode by pressing the Set and DOWN key for
few seconds.
2. The instrument will show the first parameter present in “Pr1”
4.8 TO ENTER IN PARAMETERS LIST “PR2”
To access parameters in “Pr2”:

dIXEL
Operating Instructions 1592009367
1592009367 XW60LS GB rel.1.0 27.10.06.doc XW60LS 2/4
0. Enter the “Pr1” level.
1. Select “Pr2” parameter and press the “SET” key.
2. The “PAS” flashing message is displayed, shortly followed by “0 - -” with a flashing zero.
3. Use oor nto input the security code in the flashing digit; confirm the figure by pressing
“SET”. The security code is “321“.
4. If the security code is correct the access to “Pr2” is enabled by pressing “SET” on the last
digit.
Another possibility is the following: after switching ON the instrument the user can push Set and
DOWN keys within 30 seconds.
NOTE: each parameter in “Pr2” can be removed or put into “Pr1” (user level) by pressing “SET”
+ n. When a parameter is present in “Pr1” LED is on.
4.9 HOW TO CHANGE THE PARAMETER VALUE
1. Enter the Programming mode.
2. Select the required parameter with oor n.
3. Press the “SET” key to display its value ( and LED starts blinking).
4. Use oor nto change its value.
5. Press “SET” to store the new value and move to the following parameter.
To exit: Press SET + UP or wait 15s without pressing a key.
NOTE: the new programming is stored even when the procedure is exited by waiting the time-
out.
4.10 HOW TO LOCK THE KEYBOARD
Keep the oand nkeys pressed together for more than 3 s the oand nkeys.
2. The “POF” message will be displayed and the keyboard is locked. At this
point it is only possible the viewing of the set point or the MAX o Min
temperature stored and to switch ON and OFF the light, the auxiliary output
and the instrument.
TO UNLOCK THE KEYBOARD
Keep the oand nkeys pressed together for more than 3s.
4.11 ON/OFF FUNCTION
By pushing the ON/OFF key, the instrument shows “OFF” for 5 sec. and the
ON/OFF LED is switched ON.
During the OFF status, all the relays are switched OFF and the regulations are
stopped;
N.B. During the OFF status the Light button is active.
4.12 TO SEE THE PROBE VALUES
1. Enter in “Pr2” level.
2. Select “Prd” parameter with oor n.
3. Press the “SET” key to display “Pb1” label alternate with Pb1 value.
4. Use o and nkeys to display the other probe values.
5. Press “SET” to move to the following parameter.
5. PARAMETER LIST
REGULATION
Hy Differential: (0,1÷25,5°C; 1÷45°F): Intervention differential for set point, always positive.
Compressor Cut IN is Set Point Plus Differential (Hy). Compressor Cut OUT is when the
temperature reaches the set point.
LS Minimum set point limit: (-50,0°C÷SET; -58°F÷SET) Sets the minimum acceptable value
for the set point.
US Maximum set point limit: (SET÷110°C; SET÷230°F) Set the maximum acceptable value
for set point.
OdS Outputs activation delay at start up: (0÷255 min) This function is enabled at the initial
start up of the instrument and inhibits any output activation for the period of time set in the
parameter. (Light can work)
AC Anti-short cycle delay: (0÷30 min) interval between the compressor stop and the
following restart.
CCt Thermostat override: (0min ÷23h 50min) allows to set the length of the continuous cycle.
Can be used, for instance, when the room is filled with new products.
Con Compressor ON time with faulty probe: (0÷255 min) time during which the compressor
is active in case of faulty thermostat probe. With COn=0 compressor is always OFF.
COF Compressor OFF time with faulty probe: (0÷255 min) time during which the compressor
is off in case of faulty thermostat probe. With COF=0 compressor is always active.
CH Type of action: CL = cooling; Ht = heating.
DISPLAY
CF Temperature measurement unit: °C = Celsius; °F = Fahrenheit. When the measurement
unit is changed the SET point and the values of some parameters have to be modified.
rES Resolution (for °C): (in = 1°C; de = 0,1°C) allows decimal point display.
dE = 0,1°C; in = 1 °C
Lod Local display : select which probe is displayed by the instrument:
P1 = Thermostat probe
P2 = Evaporator probe
DEFROST
tdF Defrost type:
rE = electrical heater (Compressor OFF)
in = hot gas (Compressor and defrost relays ON)
EdF Defrost mode:
in = interval mode. The defrost starts when the time “Idf” is expired.
Sd = Smartfrost mode. The time IdF (interval between defrosts) is increased only when
the compressor is running (even non consecutively).
SdF Set point for SMARTFROST: (-30÷30 °C/ -22÷86 °F) evaporator temperature which
allows the IdF counting (interval between defrosts) in SMARTFROST mode.
dtE Defrost termination temperature: (-50,0÷110,0°C; -58÷230°F) (Enabled only when the
evaporator probe is present) sets the temperature measured by the evaporator probe which
causes the end of defrost.
IdF Interval between defrosts: (1÷120h) Determines the time interval between the beginning
of two defrost cycles.
MdF (Maximum) duration of defrost: (0÷255 min) When P2P = n, no evaporator probe, it
sets the defrost duration, when P2P = y, defrost end based on temperature, it sets the
maximum length for defrost.
dFd Display during defrost:
rt = real temperature; it = temperature reading at the defrost start;
Set = set point; dEF = “dEF” label; dEG = “dEG” label;
dAd Defrost display time out: (0÷255 min) Sets the maximum time between the end of defrost
and the restarting of the real room temperature display.
dSd Start defrost delay: ( 0÷99min) This is useful when different defrost start times are
necessary to avoid overloading the plant.
Fdt Drain down time: (0÷60 min.) time interval between reaching defrost termination
temperature and the restoring of the control’s normal operation. This time allows the
evaporator to eliminate water drops that might have formed due to defrost.
dPO First defrost after start-up:
y = Immediately; n= after the IdF time
dAF Defrost delay after fast freezing: (0min÷23h 50min) after a Fast Freezing cycle, the first
defrost will be delayed for this time.
FANS
FnC Fan operating mode:
C-n = running with the compressor, OFF during the defrost;
C-y = running with the compressor, ON during the defrost;
O-n = continuous mode, OFF during the defrost;
O-y = continuous mode, ON during the defrost;
Fnd Fan delay after defrost: (0÷255 min) The time interval between the defrost end and
evaporator fans start.
FSt Fan stop temperature: (-50÷110°C; -58÷230°F) setting of temperature, detected by
evaporator probe, above which the fan is always OFF.
ALARMS
ALC Temperature alarm configuration
rE = High and Low alarms related to Set Point
Ab = High and low alarms related to the absolute temperature.
ALU High temperature alarm setting:
ALC= rE, 0 ÷50°C or 90°F
ALC= Ab, ALL ÷110°C or 230°F
when this temperature is reached and after the ALd delay time the HA alarm is enabled.
ALL Low temperature alarm setting:
ALC = rE , 0 ÷50 °C or 90°F
ALC = Ab , - 50°C or -58°F ÷ALU
when this temperature is reached and after the ALd delay time, the LA alarm is enabled,.
AFH Temperature alarm and fan differential: (0,1÷25,5°C; 1÷45°F) Intervention differential
for temperature alarm set point and fan regulation set point, always positive.
ALd Ritardo allarme temperatura: (0÷255 min) intervallo di tempo tra la rilevazione di un
segnale di allarme temperatura e la sua segnalazione.
dAO Delay of temperature alarm at start-up: (0min÷23h 50min) time interval between the
detection of the temperature alarm condition after the instrument power on and the alarm
signalling.
EdA Alarm delay at the end of defrost: (0÷255 min) Time interval between the detection of the
temperature alarm condition at the end of defrost and the alarm signalling.
PROBE INPUTS
Ot Thermostat probe calibration: (-12.0÷12.0°C/ -21÷21°F) allows to adjust possible offset
of the thermostat probe.
OE Evaporator probe calibration: (-12.0÷12.0°C/ -21÷21°F) allows to adjust possible offsets
of the evaporator probe.
P2P Evaporator probe presence: n= not present: the defrost stops only by time; y= present:
the defrost stops by temperature and time.
OTHER
oA1 Third realy configuration: ALr= alarm; Fan= Fan; Lig = Light; AUS = don’t
use it; OnF = on -off
PbC Type of probe: it allows to set the kind of probe used by the instrument:
PbC = PBC probe, ntC = NTC probe.
rEL Release software: (read only) Software version of the microprocessor.
Ptb Parameter table: (read only) it shows the original code of the dIXEL parameter map.
Prd Probes display: (read only) display the temperature values of the evaporator probe Pb2.
Pr2 Access to the protected parameter list (read only).
6. INSTALLATION AND MOUNTING
Instruments XW60LS shall be mounted on vertical panel, in a 150x31 mm hole, and fixed using
two screws ∅3 x 2mm. To obtain an IP65 protection grade use the front panel rubber gasket
(mod. RG-L). The temperature range allowed for correct operation is 0 - 60 °C. Avoid places
subject to strong vibrations, corrosive gases, excessive dirt or humidity. The same
recommendations apply to probes. Let the air circulate by the cooling holes.

dIXEL
Operating Instructions 1592009367
1592009367 XW60LS GB rel.1.0 27.10.06.doc XW60LS 3/4
6.1 CUT OUT
165
150
31
+0.5
-0
+0.5
-0
+1
-1
Ø3 x2
6.2 MOUNTING WITH KEYBOARD COVER OPENING UPWARD
CLICK!
1
2
2
3
3
1
1
6.3 MONTAGGIO VETRINO E CALOTTE FRONTALI CON APERTURA VERSO L’ALTO
CLICK!
1
2
2
2
3
3
1
1
7. ELECTRICAL CONNECTIONS
The instrument is provided with faston 2.8mm for analogue inputs. Relays and power supply
have a Faston connection (6,3mm). 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.
N.B. Maximum current allowed for all the loads is 20A.
7.1 PROBE CONNECTIONS
The probe shall be mounted with the bulb upwards to prevent damages due to casual liquid
infiltration. It is recommended to place the thermostat probe away from air streams to correctly
measure the average room temperature.
8. USE OF THE PROGRAMMING “HOT KEY “
The Wing units can UPLOAD or DOWNLOAD the parameter list from its own E2 internal
memory to the “Hot Key” and vice-versa.
8.1 DOWNLOAD (FROM THE “HOT KEY” TO THE INSTRUMENT)
1. Turn OFF the instrument by means of the ON/OFF key, remove the TTL serial cable if
present, insert the “Hot Key” and then turn the Wing ON.
2. Automatically the parameter list of the “Hot Key” is downloaded into the Wing memory,
the “DoL” message is blinking. After 10 seconds the instrument will restart working with
the new parameters.
3. Turn OFF the instrument remove the “Hot Key”, plug in the TTL serial cable, then turn it
ON again.
At the end of the data transfer phase the instrument displays the following messages:
“end “ for right programming. The instrument starts regularly with the new programming.
“err” 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.
8.2 UPLOAD (FROM THE INSTRUMENT TO THE “HOT KEY”)
1. Turn OFF the instrument by means of the ON/OFF key and remove the TTL serial cable if
present; then turn it ON again.
2. When the Wing unit is ON, insert the “Hot key” and push okey; the "uPL" message
appears.
3. Push “SET” key to start the UPLOAD; the “uPL” message is blinking.
4. Turn OFF the instrument remove the “Hot Key”, plug in the TTL serial cable, then turn it
ON again.
At the end of the data transfer phase the instrument displays the following messages:
“end “ for right programming.
“err” for failed programming. In this case push “SET” key if you want to restart the programming
again or remove the not programmed “Hot key”.
9. ALARM SIGNALS
Mess. Cause Outputs
“P1” Thermostat probe failure Alarm output ON; Compressor output according to
parameters “COn” and “COF”
“P2” Evaporator probe failure Alarm output ON; Other outputs unchanged
“HA” Maximum temperature alarm Alarm output ON; Other outputs unchanged
“LA” Minimum temperature alarm Alarm output ON; Other outputs unchanged
“EE” Data or memory failure
The alarm message is displayed until the alarm condition is recovery.
All the alarm messages are showed alternating with the room temperature except for the “P1”
which is flashing. To reset the “EE” alarm and restart the normal functioning press any key, the
“rSt” message is displayed for about 3s.
9.1 “EE” ALARM
The dIXEL instruments are provided with an internal check for the data integrity. Alarm “EE”
flashes when a failure in the memory data occurs. In such cases the alarm output is enabled.
9.2 ALARM RECOVERY
Probe alarms : “P1” (probe1 faulty), “P2” ; they automatically stop 10s after the probe restarts
normal operation. Check connections before replacing the probe.
Temperature alarms “HA” and “LA” automatically stop as soon as the thermostat temperature
returns to normal values or when the defrost starts.
10. 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: Faston 2,8mm heat-resistant wiring for probes, heat-resistant wiring and 6,3mm
Faston for loads and power supply
Power supply: 230Vac or. 110Vac ±10%
Power absorption: 3VA max.
Display: 3 digits, red LED, 14,2 mm high.
Inputs: 2 NTC probes
Relay outputs: Total current on loads MAX. 20A
compressor: relay SPST 20(8) A, 250Vac
defrost: relay SPST 8(3) A, 250Vac
fans: relay SPST 8(3) A, 250Vac
Data storing: on the non-volatile memory (EEPROM).
Kind of action: 1B.
Pollution grade: normal
Software class: A.
Operating temperature: 0÷60 °C.
Storage temperature: -25÷60 °C.
Relative humidity: 20÷85% (no condensing)
Measuring and regulation range:
NTC probe: -40÷110°C (-58÷230°F)
Resolution: 0,1 °C or 1°C or 1 °F (selectable).
Accuracy (ambient temp. 25°C): ±0,5 °C ±1 digit
11. CONNECTIONS
Defrost
Fan
RL2
RL3
Power
230V
Compr.
RL1
TRF
Room
Probe
Evaporator
Probe
48
12. DEFAULT SETTING VALUES
Label Nome Limiti Valore Livello
REGULATION
Set Set point LS÷US -5.0 Pr1
Hy Differential 0,1÷25,5 °C / 1÷45°F 2.0 Pr1
LS Minimum set point -50,0°C÷SET / -
58°F÷SET
-30.0 Pr2

dIXEL
Operating Instructions 1592009367
1592009367 XW60LS GB rel.1.0 27.10.06.doc XW60LS 4/4
Label Nome Limiti Valore Livello
US Maximum set point SET ÷ 110°C / SET ÷
230°F
20.0 Pr2
OdS Outputs activation delay at start up 0÷255 min. 0 Pr2
AC Anti-short cycle delay 0÷30 min. 1 Pr1
CCt Compressor ON time during fast freezing 0 ÷ 23h 50 min. 0.0 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
DISPLAY
CF Temperature measurement unit °C ÷ °F °C Pr2
rES Resolution (integer/decimal point) in ÷ de dE Pr1
Lod Local display P1 ÷ 1r2 P1 Pr2
DEFROST
tdF Defrost type rE, rT, in rE Pr2
EdF Defrost mode In, Sd in Pr2
SdF Set point for SMART DEFROST -30 ÷ +30°C / -22÷+86°F 0 Pr2
dtE Defrost termination temperature -50,0÷110°C/ -58÷230°F 8.0 Pr1
IdF Interval between defrost cycles 1÷120h 6 Pr1
MdF (Maximum) length for 1° defrost 0÷255 min. 30 Pr1
dFd Displaying during defrost rt, it, SEt, dEF, dEG it Pr2
dAd MAX display delay after defrost 0÷255 min. 30 Pr2
dSd Delay before defrost 0÷255 min. 0 Pr2
Fdt Draining time 0÷60 min. 0 Pr2
dPO First defrost after start up n ÷ y n Pr2
dAF Defrost delay after fast freezing 0 ÷ 23h 50 min. 0.0 Pr2
FANS
FnC Fans operating mode C-n, C-y, O-n, O-y O-n Pr2
Fnd Fans delay after defrost 0÷255 min. 10 Pr2
FSt Fans stop temperature -50,0÷110°C/ -58÷230°F 2.0 Pr2
ALARMS
ALC Temperature alarms configuration rE÷Ab Ab Pr2
ALU MAXIMUM temperature alarm -50,0÷110°C/ -58÷230°F
110 Pr1
ALL minimum temperature alarm -50,0÷110°C/ -58÷230°F
-40.0 Pr1
AFH Temperature alarm differential 0,1÷25,5 °C / 1÷45°F 2.0 Pr2
ALd Temperature alarm delay 0÷255 min. 15 Pr2
dAO Delay of temperature alarm at start up 0 ÷ 23h 50 min. 1.3 Pr2
EdA Alarm delay at the end of defrost 0÷255 min. 30 Pr2
ANALOGUE INPUTS
Ot Thermostat probe calibration -12,0÷12,0°C / -21÷21°F 0.0 Pr1
OE Evaporator probe calibration -12,0÷12,0°C / -21÷21°F 0.0 Pr2
P2P Evaporator probe presence n ÷ y Y Pr2
OTHER
oA1 Third relay configuration ALr – Fan – Lig - AUS –
onF
Fan Pr2
Pbc Kind of probe PbC, ntc ntc Pr2
rEL Software release - - - - - - Pr2
Ptb Map code - - - - - - Pr2
Prd Probes display Pb1÷Pb3 - - - Pr2
Pr2 Access parameter list - - - - - - Pr1
dIXEL S.p.a.
Z.I. Via dell’Industria, 27 - 32010 Pieve d’Alpago (BL) ITALY
tel. +39 - 0437 - 98 33 - fax +39 - 0437 - 98 93 13
http://www.dixell.com E-mail: [email protected]