1598024001 XR44CX ISA GB r2.0 21.06.2012.doc XR44CX 4/4
13.1 ALARM RECOVERY
Probe alarms “P1”, “P2” and “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” 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.
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: frontal 32x74 mm; depth 60mm;
Mounting: panel mounting in a 71x29mm panel cut-out
Protection: IP20; Frontal protection: IP65
Connections: Screw terminal block 2.5 mm
2
wiring
Power supply: 12VAC/DC, ±10%
Power absorption: 3VA max
Display: 3 digits, red LED, 14.2 mm high
Inputs: Up to 3 NTC or PTC probes
Digital inputs: free voltage contact
Relay outputs:
Compressor SPST 16(6) A 250VAC
Defrost: SPST 16(6) A, 250VAC
Buzzer: optional
Data storing: on the non-volatile memory (EEPROM)
Kind of action: 1B
Pollution degree: 2
Software class: A
Rated impulsive voltage: 2500V
Overvoltage Category: II
Operating temperature: 0 to 55°C
Storage temperature: -25 to 60°C
Relative humidity: 20 to 85% (no condensing)
Measuring and regulation range:
NTC probe: -40 to 110°C (-40 to 230°F)
PTC probe: -55 to 150°C (-67 to 302°F)
Resolution: 0.1°C or 1°C or 1°F (selectable)
Accuracy (ambient temp. 25°C): ±0.7°C ±1 digit
15. CONNECTIONS
16. DEFAULT SETTING VALUES
Label
Name Range Value
Level
SEt Set point LS; US -5.0 - - -
HY Differential
[0.1 to 25.5°C]
[1 to 45°F]
2.0 Pr1
LS Minimum set point
[-55°C to SET]
[-67°F to SET]
-40.0 Pr2
US Maximum set point
[SET to 150°C]
[SET to 302°F]
110 Pr2
ot Thermostat probe calibration
[-12.0 to 12.0°C]
[-21 to 21°F]
0.0 Pr1
P2P
Evaporator probe presence n; Y Y Pr2
oE Evaporator probe calibration
[-12.0 to 12.0°C]
[-21 to 21°F]
0.0 Pr2
P3P
Third probe presence n; Y Y Pr2
o3 Third probe calibration
[-12.0 to 12.0°C]
[-21 to 21°F]
0 Pr2
odS
Outputs delay at start up 0 to 255 min 0 Pr2
AC
Anti-short cycle delay for first
compressor
0 to 50 min 1 Pr1
AC1
Anti-short cycle delay for second
compresor
0 to 50 min 5 Pr1
CCt Continuous cycle duration 0.0 to 24h00min, res. 10 min 0.0 Pr2
CCS
Set point for continuous cycle
[-55 to 150.0°C]
[-67 to 302°F]
0.0 Pr2
Con
Compressor ON time with faulty probe 0 to 255 min 15 Pr2
CoF
Compressor OFF time with faulty probe 0 to 255 min 15 Pr2
CF Temperature measurement unit °C; °F °C Pr2
rES Resolution dE; in dE Pr1
Lod
Probe displayed P1; P2; P3; P4; SEt; dtr P1 Pr2
tdF Defrost type EL; in EL Pr2
Label
Name Range Value
Level
dtE First defrost termination temperature
[-55 to 50.0°C]
[-67 to 122°F]
8 Pr1
dtS Second defrost termination temperature
[-55 to 50.0°C]
[-67 to 122°F]
8 Pr1
idF Interval between defrost cycles 0 to 120 hours 6 Pr1
MdF
(Maximum) length for first defrost 0 to 255 min 30 Pr1
MdS
(Maximum) length for second defrost 0 to 255 min 30 Pr1
dSd
Start defrost delay 0 to 255 min 0 Pr2
dFd
Displaying during defrost rt; it; SEt; dEF it Pr2
dAd
MAX display delay after defrost 0 to 255 min 30 Pr2
Fdt Draining time 0 to 255 min 0 Pr2
dPo
First defrost after start-up n; Y n Pr2
dAF
Defrost delay after fast freezing 0.0 to 24h00min, res. 10 min 0.0 Pr2
FnC
Fan operating mode C-n; o-n; C-Y; o-Y o-n Pr2
Fnd
Fan delay after defrost 0 to 255 min 0 Pr2
FCt
Differential of temperature for forced
activation of fans
[0 to 50°C]
[0 to 90°F]
0 Pr2
FSt Fan stop temperature
[-55 to 50.0°C]
[-67 to 122°F]
50 Pr2
ALC
Temperat. alarms configuration rE; Ab Ab Pr2
ALU
MAXIMUM temperature alarm
Rel: [0.0 to 50.0°C] [0 to 90°F]
AbS: [ALL to 150°C] [ALL to 302°F]
110.0
Pr1
ALL
Minimum temperature alarm
Rel: [0.0 to 50.0°C] [0 to 90°F]
AbS: [-55°C to ALU] [-67°F to ALU]
-50.0 Pr1
AFH
Differential for temperat. alarm recovery
[0.1 to 25.5°C]
[1 to 45°F]
1.0 Pr2
ALd
Temperature alarm delay 0 to 255 min 10 Pr2
dAo
Delay of temperature alarm at start up 0.0 to 24h00min, res. 10 min 1.3 Pr2
oA1
AUX1 relay configuration
dEF = defrost; FAn= do not select it;
ALr = alarm; LiG =Light; AUS =AUX;
onF=always on; db = neutral zone;
CP2 = second compressor;
dF2 = second defrost.
CP2 Pr2
oA2
AUX2 configuration
dEF = defrost; FAn= do not select it;
ALr = alarm; LiG =Light; AUS =AUX;
onF=always on; db = neutral zone;
CP2 = second compressor;
dF2 = second defrost.
dEF Pr2
oA3
AUX3 relay configuration
dEF = defrost; FAn= do not select it;
ALr = alarm; LiG =Light; AUS =AUX;
onF=always on; db = neutral zone;
CP2 = second compressor;
dF2 = second defrost.
DF2 Pr2
i1P Digital input polarity oP; CL oP Pr1
i1F Digital input configuration
EAL; bAL; PAL; dor; dEF; AUS; Htr;
FAn; ES.
bAL Pr1
did Digital input alarm delay 0 to 255 min 0 Pr1
nPS
Number of activation of pressure switch 0 to 15 15 Pr2
odC
Compress and fan status when open
door
no; FAn; CPr; F-C no Pr2
rrd Regulation restart with door open alarm n; Y Y Pr2
HES
Differential for Energy Saving
[-30 to 30°C]
[-54 to 54°F]
0 Pr2
Adr Serial address 0 to 247 1 Pr2
PbC
Kind of probe PtC; ntC ntC Pr2
dP1
Room probe display probe value - Pr1
dP2
Evaporator probe display probe value - Pr1
dP3
Third probe display probe value - Pr1
rEL Software release read only - Pr2
Ptb Map code read only - Pr2
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