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Installation and Operations Manual
Alarm Signals
MESSAGE CAUSE OUTPUTS
P1 Room probe failure
Compressor output according
to parameters “Con” and “COF”
P2
Evaporator probe
failure
Defrost end is timed
P3 Third probe failure Outputs unchanged
P4
Fourth probe
failure
Outputs unchanged
HA
Maximum
temperature alarm
Outputs unchanged
LA
Minimum
temperature alarm
Outputs unchanged
HA2
Condenser high
temperature
It depends on the Ac2
parameter
LA2
Condenser low
temperature
It depends on the bLL
parameter
dA Door open Compressor and fans restarts
EA External alarm Output unchanged
Alarm Recovery
Probe alarms P1, 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
replacing the probe.
Temperature alarms HA, LA, HA2 and LA2 automatically stop as soon
as the temperature returns to normal values.
Other Messages
MESSAGE MEANING
Pon Keyboard unlocked
PoF Keyboard locked
noP
In programming mode: none parameter is present in Pr1
On the display the selected probe is not enabled
noA None alarm is recorded
Technical Data
CHARACTERISTIC DESCRIPTION
Housing self extinguishing ABS
Case XR40CX/XR60CX frontal 32x74 mm;
depth 60mm
Mounting XR40CX/XR60CX panel mounting in a
71x29mm panel cut-out
Protection IP20
Frontal protection XR40CX/XR60CX IP65
Connections Screw terminal block ≤ 2,5 mm
2
wiring
Power supply according to the model: 12Vac/dc,
±10%; 24Vac/dc, ±10%; 230Vac ±10%,
50/60Hz, 110Vac ±10%, 50/60Hz
Power absorption 3VA max
Display 3 digits, red LED, 14,2 mm high;
Inputs Up to 4 NTC or PTC probes
Digital input free voltage contact
Relay outputs compressor: SPST 8(3) A, 250Vac; SPST
16(6)A 250Vac or 20(8)A 250Vac
defrost: SPDT 8(3) A, 250Vac
fan (XR60CX only): SPST 8(3) A, 250Vac
or SPST 5(2) A
Data storing on the non-volatile memory (EEPROM)
Kind of action 1B
Pollution grade 2
Software class A
Rated impulsive voltage 2500V
Overvoltage Category II
Operating temperature 0÷60 °C
Storage temperature -30÷85 °C
Relative humidity 20÷85% (no condensing)
Measuring and
regulation range
NTC probe: -40÷110°C (-40÷230°F)
PTC probe: -50÷150°C (-58÷302°F)
Resolution 0,1 °C or 1°C or 1 °F (selectable)
Accuracy (ambient
temp. 25°C)
±0,7 °C ±1 digit