9.5 START DEFROST (i1F or i2F = 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.
9.6 SWITCH THE AUXILIARY RELAY (i1F or i2F = AUS)
With oAx=AUS the digital input will change the status of the auxiliary relay.
9.7 INVERSION OF THE KIND OF ACTION: HEATING-COOLING (i1F or i2F=Htr)
This function allows to invert the regulation of the controller: from cooling to heating and viceversa.
9.8 ENERGY SAVING (i1F or i2F = 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.
9.9 ON OFF FUNCTION (i1F or i2F = onF)
To switch the controller on and off.
9.10 DIGITAL INPUTS POLARITY
The digital input polarity depends on the i1P and i2P parameters.
-
i1P or i2P =CL: the input is activated by closing the contact.
-
i1P or i2P=OP: the input is activated by opening the contact.
10. 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.
11. X-REP OUTPUT – OPTIONAL
As optional, an X-REP can be connected to the instrument, trough the dedicated connector.
12. INSTALLATION AND MOUNTING
The XW30LH shall be mounted on vertical panel, in a 150x31 mm hole, and fixed using the special
shall be mounted on vertical panel, in a 150x31 mm hole, and fixed using the special
brackets supplied with the controllers. The temperature range allowed for correct operation is 0 to
brackets supplied with the controllers. The temperature range allowed for correct operation is 0 to
60°C. Avoid places subject to strong vibrations, corrosive gases, excessive dirt or humidity. The
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.
same recommendations apply to probes. Let the air circulate by the cooling holes.
12.1 CUT OUT
13. ELECTRICAL CONNECTIONS
ELECTRICAL CONNECTIONS
The instruments are provided with screw terminal block to connect cables with a cross section up to
The instruments are provided with screw terminal block to connect cables with a cross section up to
2.5 mm
for the digital and analogue inputs. Relays and power supply have a Faston connection
for the digital and analogue inputs. Relays and power supply have a Faston connection
2
(6.3mm). Heat-resistant cables have to be used. Before connecting cables make sure the power
(6.3mm). Heat-resistant cables have to be used. Before connecting cables make sure the power
supply complies with the instrument's requirements.
supply complies with the instrument's requirements.
Separate the probe cables from the power supply cables, from the outputs and the power
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
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.
N.B. Maximum current allowed for all the loads is 20A.
13.1 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.
14. HOW TO USE THE HOT KEY
14.1 PROGRAM A HOT KEY FROM AN INSTRUMENT (UPLOAD)
1.
Program one controller with the front keypad.
2.
When the controller is ON, insert the "HOT-KEY" and push UP button; the "uPL" message
appears followed a by a flashing "End" label.
3.
Push SET button and the "End" will stop flashing.
4.
Turn OFF the instrument, remove the "HOT-KEY" and then turn it ON again.
NOTE: the "Err" message appears in case of a failed programming operation. In this case push again
button if you want to restart the upload again or remove the "HOT-KEY" to abort the operation.
14.2 PROGRAM AN INSTRUMENT BY USING A HOT KEY (DOWNLOAD)
1.
Turn OFF the instrument.
2.
Insert a pre-programmed "HOT-KEY" into the 5-PIN receptacle and then turn the Controller
ON.
3.
The parameter list of the "HOT-KEY" will be automatically downloaded into the Controller
memory. The "doL" message will blink followed a by a flashing "End" label.
4.
After 10 seconds the instrument will restart working with the new parameters.
1592027560 XW30LH-XW30LRH GB r1.0 14.02.2014.doc
To connect the X-REP to the
instrument the following
connectors must be used
CAB/REP1(1m), CAB/REP2
(2m), CAB/REP5 (5m),
XW30LH – XW30LRH
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.
15. ALARM SIGNALS
Message Cause
P1
Room probe failure
P2
Evaporator probe failure
P3
Third probe failure
P4
Fourth probe failure
HA
Maximum temperature alarm
LA
Minimum temperature alarm
HA2
Condenser high temperature
LA2
Condenser low temperature
dA
Door open
EA
External alarm
CA
Serious external alarm (i1F=bAL) All outputs OFF.
CA
Pressure switch alarm (i1F=PAL) All outputs OFF
rtC
Real time clock alarm
rtF
Real time clock board failure
15.1 SILENCING BUZZER / ALARM RELAY OUTPUT
SILENCING BUZZER / ALARM RELAY OUTPUT
-
tbA=Y: the buzzer and the relay are is silenced by pressing any key.
the buzzer and the relay are is silenced by pressing any key.
-
tbA=n: only the buzzer is silenced while the alarm relay is on until the alarm condition
only the buzzer is silenced while the alarm relay is on until the alarm condition
recovers.
15.2 ALARM RECOVERY
ALARM RECOVERY
Probe alarms P1, P2, P3 and P4 start some seconds after the fault in the related probe; they
, P2, P3 and P4 start some seconds after the fault in the related probe; they
automatically stop some seconds after the probe restarts normal operation. Check connections before
automatically stop some seconds after the probe restarts normal operation. Check connections before
replacing the probe.
replacing the probe.
Temperature alarms HA, LA, HA2 and LA2 automatically stop as soon as the temperature returns to
Temperature alarms HA, LA, HA2 and LA2 automatically stop as soon as the temperature returns to
normal values.
normal values.
Alarms EA and CA (with i1F=bAL) recover as soon as the digital input is disabled.
Alarms EA and
EA and
EA
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.
Alarm CA (with
CA
CA (with
i1F=PAL) recovers only by switching off and on the instrument.
15.3 OTHER MESSAGES
15.3 OTHER MESSAGES
on
on
Keyboard enabled after automatic lock.
Keyboard enabled after automatic lock.
LOC Keyboard automatically locked
LOC Keyboard automatically locked
Pon
Pon
Keyboard unlocked.
Keyboard unlocked.
PoF
PoF
Keyboard locked
Keyboard locked
In programming mode: none parameter is present in Pr1
In programming mode
noP
noP
On the display or in dP2, dP3, dP4: the selected probe is nor enabled
On the display or in dP2, dP3, dP4: the selected probe is nor enabled
16. TECHNICAL DATA
16. TECHNICAL DATA
Housing:
Housing: self extinguishing ABS
Case:
Case: facia 38x185 mm; depth [XW30LH: 76mm], [XW30LRH: 40mm]
Mounting: panel mounting in a 150x31 mm panel cut-out with the 2 metal brackets supplied
Protection: IP20
Frontal protection: IP65
Connections: screw terminal block
2.5 mm
Power supply: 230Vac or. 110Vac or 24Vac
Power absorption: 5VA max
Display: 3 digits, white LED, 14.2 mm high
Inputs: Up to 4 NTC or PTC probes
Digital inputs: 2 free voltage
Relay outputs for XW30LH models: Total current on loads MAX. 20A
Compressor: relay SPST 20(8) A, 250Vac
Light: relay SPST 8 or 16(3) A, 250Vac
Fans: relay SPST 8(3) A, 250Vac
Relay outputs for XW30LRH models: Total current on loads MAX. 16A
Compressor: relay SPST 20(8)A, 250Vac
Fans: relay SPST 5A, 250Vac
Light: relay SPST 8(3) A, 250Vac
Other output: buzzer
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 degree: 2
Software class: A
Rated impulsive voltage: 2500V
Over voltage Category: II
Operating temperature: 0 to 60 °C (32 to 140°F)
Storage temperature: -30 to 85°C (-22 to 185°F).
Relative humidity: 20 to 85% (not condensing)
Measuring and regulation range:
NTC probe: -40 to 110°C (-40 to 230°F)
PTC probe: -50 to 150°C (-58 to 302°F)
Resolution: 0.1°C or 1°C or 1°F (selectable)
Accuracy (ambient temp. 25°C): ±0.7°C ±1 digit
Outputs
Compressor output acc. to par. Con and CoF
Defrost end is timed
Outputs unchanged
Outputs unchanged
Outputs unchanged.
Outputs unchanged.
It depends on the AC2 parameter
It depends on the bLL parameter
Compressor and fans restarts
Output unchanged.
Alarm output ON; Other outputs unchanged;
Defrosts according to par. idF Set real time clock
has to be set.
Alarm output ON; Other outputs unchanged;
Defrosts according to par. idF. Contact the
service.
heat-resistant wiring and 6.3mm Faston
2
10%
4/5