1598029000 XW30L-XW60LS CLD IT-GB-FR-SP-TD r2.1 23.09.2015
XW30L – XW60LS
7/20
with i1F= PAL: time for pressure switch function: time interval to calculate the number of the
pressure switch activation.
nPS Pressure switch number: (0
÷
15) Number of activation of the pressure switch, during the “did”
interval, before signalling the alarm event (I2F= PAL).
If the nPS activation in the did time is reached, switch off and on the instrument to restart
normal regulation.
odc Compressor and fan status when open door: no = normal; Fan = Fan OFF; CPr =
Compressor OFF; F_C = Compressor and fan OFF.
rrd Outputs restart after doA alarm: no= outputs not affected by the doA alarm; yES = outputs
restart with the doA alarm.
HES Temperature increase during the Energy Saving cycle:
(-30,0°C
÷
30,0°C) it sets the increasing value of the set point during the Energy Saving cycle.
OTHER
LoC Keyboard lock enabling: (n; Y) to enable the lock-unlock function of the keyboard. Keep press
both UP+DOWN buttons to change the keyboard status.
Adr Serial address (1÷247): Identifies the instrument address when connected to a ModBUS
compatible monitoring system.
PbC Type of probe: it allows to set the kind of probe used by the instrument: PbC = PBC probe, ntc=
NTC probe.
dP1 Thermostat probe display
dP2 Evaporator probe display
rSE Real set point: it shows the set point used during the energy saving cycle or during the
continuous cycle.
rEL Software release for internal use.
Ptb Parameter table code: readable only.
8.
DIGITAL INPUT
8.1
GENERIC ALARM (i1F = EAL)
As soon as the digital input is activated the unit will wait for did time delay before signalling the “EAL”
alarm message. The outputs status doesn’t change. The alarm stops just after the digital input is de-
activated.
8.2
SERIOUS ALARM MODE (i1F = bAL)
When the digital input is activated, the unit will wait for did delay before signalling the “CA” alarm
message. The relay outputs are switched OFF. The alarm will stop as soon as the digital input is de-
activated.
8.3
PRESSURE SWITCH (i1F = PAL)
If during the interval time set by did parameter, the pressure switch has reached the number of
activation of the nPS parameter, the “CA” pressure alarm message will be displayed. The compressor
and the regulation are stopped. When the digital input is ON the compressor is always OFF. If the
nPS activation in the did time is reached, switch off and on the instrument to restart normal
regulation.
8.4
DOOR SWITCH INPUT (i1F = dor)
It signals the door status and the corresponding relay output status through the odC parameter: no =
normal (any change); Fan = Fan OFF; CPr = Compressor OFF; F_C = Compressor and fan OFF.
Since the door is opened, after the delay time set through parameter did, the door alarm is enabled,
the display shows the message “dA” and the regulation restarts if rtr=YES. The alarm stops as
soon as the external digital input is disabled again. With the door open, the high and low temperature
alarms are disabled.
8.5
START DEFROST (i1F = dEF)
It starts a defrost if there are the right conditions. After the defrost is finished, the normal regulation will
restart only if the digital input is disabled otherwise the instrument will wait until the MdF safety time is
expired.
8.6
INVERSION OF THE KIND OF ACTION: HEATING-COOLING (i1F =Htr)
This function allows inverting the regulation of the controller: from cooling to heating and viceversa.
8.7
ENERGY SAVING (i1F = ES)
The Energy Saving function allows to change the set point value as the result of the SET+HES
(parameter) sum. This function is enabled until the digital input is activated.
8.8
ON OFF FUNCTION (i1F = onF)
To switch the controller on and off.
8.9
DIGITAL INPUTS POLARITY
The digital input polarity depends on the i1P parameter.
i1P =CL: the input is activated by closing the contact.
i1P =OP: the input is activated by opening the contact
9.
TTL SERIAL LINE – FOR MONITORING SYSTEMS
The TTL serial line, available through the HOT KEY connector, allows by means of the external
TTL/RS485 converter, XJ485-CX, to connect the instrument to a monitoring system ModBUS-RTU
compatible, such as the X-WEB500/3000/300.
10.
INSTALLATION AND MOUNTING
The controller 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 fro 0 to 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.
10.1
CUT OUT
11.
ELECTRICAL CONNECTIONS
The instruments are provided with screw terminal block to connect cables with a cross section up to
2,5 mm
2
for the digital and 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.
11.1
PROBE CONNECTION
The probes 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. Place the defrost termination probe among the evaporator
fins in the coldest place, where most ice is formed, far from heaters or from the warmest place during
defrost, to prevent premature defrost termination.
12.
HOW TO USE THE HOT KEY
12.1
HOW TO PROGRAM A HOT KEY FROM THE INSTRUMENT (UPLOAD)
1.
Program one controller with the front keypad.
2.
When the controller is ON, insert the “Hot Key” and push UP key; the “uPL” message appears
followed a by flashing “End”
3.
Push SET key and the “End” will stop flashing.
4.
Turn OFF the instrument and remove the “Hot Key”, then turn it ON again.
NOTE: the “Err” message is displayed for failed programming. In this case push again UP key if you
want to restart the upload again or remove the “Hot Key” to abort the operation.
12.2
HOW TO PROGRAM AN INSTRUMENT USING A HOT KEY (DOWNLOAD)
1.
Turn OFF the instrument.
2.
Insert a programmed “Hot Key” into the 5-PIN receptacle and then turn the Controller ON.
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.
13.
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
“HA”
Maximum temperature alarm
Outputs unchanged.
“LA”
Minimum temperature alarm
Outputs unchanged.
“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
13.1
ALARM RECOVERY
Probe alarms “P1” and “P2” 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” 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.
13.2
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
14.
TECHNICAL DATA
Housing: self extinguishing ABS
Case: XW30L facia 38x185 mm; depth 76mm; XW60LS 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 2 NTC or PTC probes
Digital inputs: 2 free voltage
Relay outputs: Total current on loads MAX. 20A
