dixell CX620 Manuel d'installation et d'utilisation - Page 4
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CONDENSER TEMPERATURE ALARM
AP2
Probe selection for temperature alarm of condenser: (nP; P1; P2; P3; P4)
nP = no probe; P1 = thermostat probe; P2 = evaporator probe; P3 = configurable probe;
P4 = Probe on Hot Key plug.
AL2
Low temperature alarm of condenser: (-55 to 150°C; -67 to 302°F) when this
temperature is reached the LA2 alarm is signalled, possibly after the Ad2 delay.
Au2
High temperature alarm of condenser: (-55 to 150°C; -67 to 302°F) when this
temperature is reached the HA2 alarm is signalled, possibly after the Ad2 delay.
AH2
Differential for temperature condenser alarm recovery: 0.1 to 25.5°C; 1 to 45°F.
Ad2
Condenser temperature alarm delay: (0 to 255 min) time interval between the detection
of the condenser alarm condition and alarm signalling.
dA2
Condenser temperature alarm exclusion at start up: 0.0 to 24h00min, res. 10min.
bLL
Compressor off with low temperature alarm of condenser: (n; Y) n = compressor
keeps on working; Y = compressor is switched off till the alarm is present, in any case
regulation restarts after AC time at minimum.
AC2
Compressor off with high temperature alarm of condenser: (n; Y) n = compressor
keeps on working; Y = compressor is switched off till the alarm is present, in any case
regulation restarts after AC time at minimum.
RELAY OA3 (22-23) CONFIGURATION
tbA
Alarm relay silencing (with oAx =ALr): (n; Y) n = silencing disabled: alarm relay stays
on till alarm condition lasts. Y = silencing enabled: alarm relay is switched OFF by
pressing a key during an alarm.
oA3
Third relay configuration (X60LT: terminals 1-3, XW60LRT: terminals 5-6): (dEF;
FAn; ALr; LiG; AUS; onF; db; dEF2; HES) dEF = defrost; FAn = do not select it; ALr =
alarm; LiG = light; AUS = Auxiliary relay; onF = always on with instrument on; db =
neutral zone; dEF2 = do not select it; HES = night blind.
AoP
Alarm relay polarity: (CL; oP) it set if the alarm relay is open or closed when an alarm
occurs. CL = terminals closed during an alarm; oP = terminals open during an alarm.
DIGITAL INPUT
i1P
First digital input polarity: (oP; CL) oP = the digital input is activated by opening the
contact; CL = the digital input is activated by closing the contact.
i1F
First digital input configuration: (EAL; bAL; PAL; dor; dEF; ES; AUS; Htr; FAn; HdF;
onF; Sbt) EAL = external alarm: "EA" message is displayed; bAL = serious alarm "CA"
message is displayed; PAL = pressure switch alarm, "CA" message is displayed; dor =
door switch function; dEF = activation of a defrost cycle; ES = energy saving; AUS =
auxiliary relay activation with oA2=AUS; Htr = type of inverting action (cooling or heating);
FAn = fan; HdF = Holiday defrost (enable only with RTC); onF = to switch the controller
off; Sbt = to activate Sabbath mode.
did
Digital input 1 alarm delay: (0 to 255 min) delay between the detection of the external
alarm condition and its signalling.
When i1F= PAL, it is the interval of time to calculate the number of pressure switch
activation.
nPS
Number of pressure switch activation: (0 to 15) Number of activation, during the did or
d2d interval, before signalling an alarm event (i1F, i2F=PAL).
If the nPS activation during did or d2d time is reached, switch off and on the instrument to
restart normal regulation.
odC
Compressor status when open door: (no; FAn; CPr;F_C;) no = normal;
FAn = normal; CPr = compressor OFF, F_C = compressor OFF.
rrd
Outputs restart after door open alarm: (n; Y) n = outputs follow the odC parameter.
Y = outputs restart with a door open alarm.
LES
Light off during Energy Saving status: n; Y.
HES
Delta temperature during an Energy Saving cycle: (-30.0 to 30.0°C; -54 to 54°F) it
sets the increasing value of the set point [SET+HES] during the Energy Saving cycle.
CURRENT TIME AND WEEKLY HOLIDAYS (ONLY FOR MODELS WITH RTC)
Hur
Current hour: 0 to 23h.
Min
Current minute: 0 to 59min.
dAY
Current day: Sun to SAt.
dYM
Day of the month: 1 to 31.
Mon
Month: 1 to 12.
YAr
Year: 00 to 99.
Hd1
First weekly holiday: (Sun to nu) set the first day of the week which follows the holiday
times.
Hd2
Second weekly holiday: (Sun to nu) set the second day of the week which follows the
holiday times.
N.B.: Hd1, Hd2 can be set also as "nu" value (Not Used).
ENERGY SAVING TIMES (ONLY FOR MODELS WITH RTC)
ILE
Energy Saving cycle start during workdays: (0 to 23h50min) during the Energy Saving
cycle the set point is increased by the value in HES so that the operation set point is
SET+HES.
dLE
Energy Saving cycle length during workdays: (0 to 24h00min) sets the duration of the
Energy Saving cycle on workdays.
ISE
Energy Saving cycle start on holidays: 0 to 23h50min.
dSE
Energy Saving cycle length on holidays: 0 to 24h00min.
TO SET DEFROST TIMES (ONLY FOR MODELS WITH RTC)
Ld1...Ld6
Workday defrost start: (0 to 23h50min) these parameters set the beginning of the
6 programmable defrost cycles during workdays. Ex: when Ld2=12.4 the second
defrost starts at 12.40 during workdays.
Sd1...Sd6
Holiday defrost start: (0 to 23h50min) these parameters set the beginning of the 6
programmable defrost cycles on holidays. Ex: when Sd2=3.4 the second defrost
starts at 3.40 on holidays.
N.B.: to disable a defrost cycle set it to "nu" (not used).
OTHER
Adr
Serial address: (1 to 247) identifies the instrument address when connected to a
ModBUS compatible monitoring system.
1592026020 XW60K GB R2.1 22.06.2012.doc
PbC
Type of probe: (PtC; ntC) it allows to set the kind of probe used by the instrument:
-
PtC = PTC probe;
ntC = NTC probe.
-
onF
On/Off key enabling: (nU; oFF; ES) nU = disabled; oFF = enabled; ES = not set it.
dP1
Thermostat probe display.
dP2
Evaporator probe display.
dP3
Third probe display.
dP4
Fourth probe display (only for XW60LT models).
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.
9
DIGITAL INPUT
The free voltage digital input is programmable in different configurations by the i1F parameter.
9.1 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 is 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.
9.2 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.
9.3 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.
9.4 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.
9.5 AUXILIARY OUTPUT SWITCHING (I1F =AUS)
With oA3=AUS and i1F=AUX it switches the fourth relay (22-23).
9.6 START DEFROST (I1F = DFR)
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.
9.7 KIND OF ACTION: HEATING OR COOLING (I1F = HTR)
This function allows to invert the regulation of the controller: from cooling to heating and viceversa.
9.8 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.
9.9 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
10 INSTALLATION AND MOUNTING
T620 keyboard 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).
V620 keyboard shall be mounted on vertical panel, in a 72x56 mm hole, and fixed using two screws
3 x 2mm. To obtain an IP65 protection grade use the front panel rubber gasket (mod. RGW-V).
CX620 keyboard shall be mounted on vertical panel, in a 29x71 mm hole, and fixed using the special
bracket supplied.
The controller XW60K shall be mounted in a din rail
It must be connected to the keyboard by means of a two-wire cable ( 1mm). 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 same recommendations apply to probes. Let the air circulate by the
cooling holes.
XW60K
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