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7.8 HOW TO LOCK THE KEYBOARD (MANUALLY)

Keep the UP and DOWN keys pressed together for more than 3 sec the UP and

DOWN keys.

The "PoF" message will be displayed and the keyboard is locked. At this point it is

only possible the viewing of the set point or the MAX o Min temperature stored and

to switch ON and OFF the light, the auxiliary output and the instrument.

TO UNLOCK THE KEYBOARD

Keep the UP and DOWN keys pressed together for more than 3 sec.

7.9 ON/OFF FUNCTION (STAND BY)

By pushing the ON/OFF key, the instrument shows "OFF" for 5 sec. and the ON/OFF LED

is switched ON.

During the OFF status, all the relays are switched OFF and the regulations are stopped; if

a monitoring system is connected, it does not record the instrument data and alarms.

When the instrument is in stand by the keyboard displays "oFF".

N.B. During the OFF status the Light and AUX buttons are active.

7.10 TO SEE THE PROBE VALUES

Enter in "Pr1" level.

Parameters "dP1", "dP2", "dP3" and "dP4" display the value of probes 1, 2, 3 and 4.

PARAMETER LIST

rtC

Real time clock menu (only for controller with RTC): to set the time, date and defrost

start time.

REGULATION

Differential: (0.1 to 25.5°C; 1 to 45°F) intervention differential for set point. Compressor

Cut IN is Set Point + differential (HY). Compressor Cut OUT is when the temperature

reaches the set point.

Minimum set point: (-55°C to SET; -67°F to SET) sets the minimum value for the set

point.

Maximum set point: (SET to 150°C; SET to 302°F) set the maximum value for set point.

Thermostat probe calibration: (-12.0 to 12.0°C; -21 to 21°F) allows to adjust possible

offset of the thermostat probe.

P2P

Evaporator probe presence: (n; Y) n = not present, the defrost stops by time;

Y = present, the defrost stops by temperature.

Evaporator probe calibration: (-12.0 to 12.0°C; -21 to 21°F) allows to adjust possible

offset of the evaporator probe.

P3P

Third probe presence (P3): (n; Y) n = not present, the terminals 18-20 operate as digital

input; Y = present, the terminals 18-20 operate as third probe.

Third probe calibration (P3): (-12.0 to 12.0°C; -21 to 21°F) allows to adjust possible

offset of the third probe.

P4P

Fourth probe presence: (n; Y) n = Not present; Y = present.

NOTE: only for XW60LT models.

Fourth probe calibration: (-12.0 to 12.0°C; -21 to 21°F) allows to adjust possible offset

of the fourth probe.

NOTE: only for XW60LT models.

odS

Outputs activation delay at start up: (0 to 255min) this function is enabled at the initial

start up of the instrument and inhibits any output activation for the period of time set in the

parameter.

Anti-short cycle delay: (0 to 50min) minimum interval between the compressor stop and

the following restart.

rtr

Percentage of the second and first probe for regulation: (0 to 100; 100=P1, 0=P2) it

allows to set the regulation according to the percentage of the first and second probe, as

for the following formula (rtr(P1-P2)/100 + P2).

CCt

Compressor ON time during continuous cycle: (0.0 to 24h00min, res. 10min) allows to

set the length of the continuous cycle. Compressor stays on without interruption during

CCt time. This is useful, for instance, when the room is filled with new products.

CCS

Set point for continuous cycle: (-55 to 150°C; -67 to 302°F) it sets the set point used

during the continuous cycle.

Con

Compressor ON time with faulty probe: (0 to 255min) time during which the

compressor is active in case of faulty thermostat probe. With Con=0 compressor is

always OFF.

CoF

Compressor OFF time with faulty probe: (0 to 255min) time during which the

compressor is OFF in case of faulty thermostat probe. With CoF=0 compressor is always

active.

DISPLAY

Temperature measurement unit: (°C; °F) °C = Celsius; °F = Fahrenheit.

WARNING: When the measurement unit is changed the SET point and the values of

the parameters HY, LS, US, ot, ALU and ALL have to be checked and modified (if

necessary).

rES

Resolution (for °C): (in=1°C; dE=0.1°C) allows decimal point display.

Lod

Instrument display: (P1; P2, P3, P4, SET, dtr) it selects which probe is displayed by

the instrument. P1 = Thermostat probe; P2 = Evaporator probe; P3 = Third probe (only

for model with this option enabled); P4 = Fourth probe, SET = set point; dtr =

percentage of visualization.

rEd

X-REP display (optional): (P1; P2, P3, P4, SET, dtr) it selects which probe is

displayed by X- REP. P1 = Thermostat probe; P2 = Evaporator probe; P3 = Third probe

(only for model with this option enabled); P4 = Fourth probe, SET = set point;

dtr = percentage of visualization.

dLY

Display delay: (0 to 20min00s; res. 10s) when the temperature increases, the display

is updated of 1°C or 1°F after this time.

dtr

Percentage of the second and first probe for visualization when Lod=dtr: (0 to 99;

100=P1, 0=P2) if Lod=dtr it allows to set the visualization according to the percentage

of the first and second probe, as for the following formula (dtr(P1-P2)/100 + P2).

1592026020 XW60K GB R2.1 22.06.2012.doc

DEFROST

EdF

Defrost mode (only for controller with RTC):

- rtC: Real Time Clock mode. Defrost time follows Ld1 to Ld6 parameters on

workdays and Sd1 to Sd6 on holidays.

- in: interval mode. The defrost starts when the time idf is expired.

tdF

Defrost type: (EL; in) EL = electrical heater; in = hot gas.

dFP

Probe selection for defrost termination: (nP; P1; P2; P3; P4) nP = no probe;

P1 =thermostat probe; P2 = evaporator probe; P3 =configurable probe; P4 = Probe on

Hot Key plug.

dtE

Defrost termination temperature: (-55 to 50°C; -67 to 122°F) (enabled only when

EdF=Pb) sets the temperature measured by the evaporator probe, which causes the

end of defrost.

idF

Interval between defrost cycles: (0 to 120hours) determines the interval of time

between two defrost cycles.

MdF

(Maximum) length for defrost: (0 to 255min) when P2P=n, (not evaporator probe:

timed defrost) it sets the defrost duration. When P2P=Y (defrost end based on

temperature) it sets the maximum length for defrost.

dSd

Start defrost delay: (0 to 99min) this is useful when different defrost start times are

necessary to avoid overloading the plant.

dFd

Temperature displayed during defrost: (rt; it; SEt; dEF) rt = real temperature;

it = temperature at defrost start; SEt = set point; dEF = "dEF" label.

dAd

MAX display delay after defrost: (0 to 255min) sets the maximum time between the

end of defrost and the restarting of the real room temperature display.

Fdt

Drip time: (0 to 120min) time interval between reaching defrost termination temperature

and the restoring of the control's normal operation. This time allows the evaporator to

eliminate water drops that might have formed due to defrost.

dPo

First defrost after start-up: (n; Y) n = after the idF time, Y = immediately.

dAF

Defrost delay after continuous cycle: (0.0 to 24h00min, res. 10min) time interval

between the end of the fast freezing cycle and the following defrost related to it.

FANS

FnC

Fans operating mode: (C-n; o-n; C-Y; o-Y) C-n = runs with the compressor, OFF during

defrost; o-n = continuous mode, OFF during defrost; C-Y = runs with the compressor, ON

during defrost; o-Y = continuous mode, ON during defrost.

Fnd

Fans delay after defrost: (0 to 255min) interval between end of defrost and evaporator

fans start.

FCt

Temperature differential to avoid fan short cycles: (0 to 59°C; 0 to 90°F) (N.B.: FCt=0

means function disabled) if the difference of temperature between the evaporator and the

room probes is higher than FCt value, the fans will be switched on.

FSt

Fans stop temperature: (-55 to 50°C; -67 to 122°F) setting of temperature, detected by

evaporator probe, above which fans are always OFF.

Fon

Fan ON time: (0 to 15min) with Fnc=C_n or C_Y, (fan activated in parallel with

compressor) it sets the evaporator fan ON cycling time when the compressor is off. With

Fon=0 and FoF≠0 the fan are always off, with Fon=0 and FoF=0 the fan are always off.

FoF

Fan OFF time: (0 to 15min)

With FnC=C_n or C_Y, (fan activated in parallel with compressor) it sets the evaporator

fan off cycling time when the compressor is off.

With Fon=0 and FoF≠0 the fan are always off, with Fon=0 and FoF=0 the fan are always

off.

FAP

Probe selection for fan management: (nP; P1; P2; P3; P4) nP = no probe;

P1 =thermostat probe; P2 = evaporator probe; P3 =configurable probe; P4 = Probe on Hot

Key plug.

OA3 = AUS: AUXILIARY THERMOSTAT CONFIGURATION (terms. 22-23)

ACH

Kind of regulation for auxiliary relay: (Ht; CL) Ht = heating; CL = cooling.

SAA

Set Point for auxiliary relay: (-55.0 to 150.0°C; -67 to 302°F) it defines the room

temperature set point to switch auxiliary relay.

SHY

Differential for auxiliary output: (0.1 to 25.5°C; 1 to 45°F) intervention differential for

auxiliary output set point.



ACH=CL, AUX Cut in is [SAA+SHY]; AUX Cut out is SAA.



ACH=Ht, AUX Cut in is [SAA–SHY]; AUX Cut out is SAA.

ArP

Probe selection for auxiliary: (nP; P1; P2; P3; P4) nP = no probe, the auxiliary relay is

switched only by the digital input; P1 = Probe 1 (Thermostat probe); P2 = Probe 2

(evaporator probe); P3 = Probe 3 (display probe); P4 = Probe 4.

Sdd

Auxiliary relay off during defrost: (n; Y) n = the auxiliary relay operates during defrost.

Y = the auxiliary relay is switched off during defrost.

ALARMS

ALP

Probe selection for alarm: (nP; P1; P2; P3; P4) nP = no probe, the temperature alarms

are disabled; P1 = Probe 1 (Thermostat probe); P2 = Probe 2 (evaporator probe);

P3 = Probe 3 (display probe); P4 = Fourth probe.

ALC

Temperature alarms configuration: (Ab; rE) Ab = absolute temperature, alarm

temperature is given by the ALL or ALU values. rE = temperature alarms are referred to

the set point. Temperature alarm is enabled when the temperature exceeds the

[SET+ALU] or [SET-ALL] values.

ALU

MAXIMUM temperature alarm:



If ALC=Ab: [ALL to 150.0°C or ALL to 302°F]



If ALC=rE: [0.0 to 50.0°C or 0 to 90°F]

when this temperature is reached the alarm is enabled, after the ALd delay time.

ALL

Minimum temperature alarm:



If ALC=Ab: [-55°C to ALU; -67 to ALU]



If ALC=rE: [0.0 to 50.0°C or 0 to 90°F]

when this temperature is reached the alarm is enabled, after the ALd delay time.

AFH

Differential for temperature alarm recovery: (0.1 to 25.5°C; 1 to 45°F) intervention

differential for recovery of temperature alarm.

ALd

Temperature alarm delay: (0 to 255 min) time interval between the detection of an alarm

condition and alarm signalling.

dAo

Exclusion of temperature alarm at start-up: (0.0 to 24h00min, res. 10min) time interval

between the detection of the temperature alarm condition after instrument power on and

alarm signalling.

XW60K

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