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4.9 HOW TO CHANGE THE PARAMETER VALUE

1. Enter the Programming mode.

2. Select the required parameter with o or n.

3. Press the "SET" key to display its value (

4. Use o or n to change its value.

5. Press "SET" to store the new value and move to the following parameter.

To exit: Press SET + UP or wait 15s without pressing a key.

NOTE: the new programming is stored even when the procedure is exited by waiting the time-out.

4.10 HOW TO LOCK THE KEYBOARD

Keep the o and n keys pressed together for more than 3 s the o and n 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 o and n keys pressed together for more than 3s.

4.11 ON/OFF FUNCTION

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;

N.B. During the OFF status the Light button is active.

5. PARAMETER LIST

REGULATION

Hy Differential: (0,1÷25,5°C; 1÷45°F): Intervention differential for set point, always positive.

Compressor Cut IN is Set Point Plus Differential (Hy). Compressor Cut OUT is when the

temperature reaches the set point.

LS Minimum set point limit: (-50,0°C

the set point.

US Maximum set point limit: (SET

110°C; SET÷230°F) Set the maximum acceptable value for set

point.

OdS Outputs activation delay at start up: (0÷255 min) 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.

(Light can work)

AC Anti-short cycle delay: (0÷30 min) interval between the compressor stop and the following

restart.

CCt Thermostat override: (0min ÷23h 50min) allows to set the length of the continuous cycle. Can

be used, for instance, when the room is filled with new products.

Con Compressor ON time with faulty probe: (0÷255 min) 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÷255 min) time during which the compressor is off

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

CH Type of action: CL = cooling; Ht = heating.

DISPLAY

CF Temperature measurement unit: °C = Celsius; °F = Fahrenheit. When the measurement unit is

changed the SET point and the values of some parameters have to be modified.

rES Resolution (for °C): (in = 1°C; de = 0,1°C) allows decimal point display.

dE = 0,1°C; in = 1 °C

DEFROST

EdF Defrost mode:

in = interval mode. The defrost starts when the time "Idf" is expired.

Sd = Smartfrost mode. The time IdF (interval between defrosts) is increased only when the

compressor is running (even non consecutively).

IdF Interval between defrosts: (1÷120h) Determines the time interval between the beginning of two

defrost cycles.

MdF (Maximum) duration of defrost: (0÷255 min) When P2P = n, no evaporator probe, it sets the

defrost duration, when P2P = y, defrost end based on temperature, it sets the maximum length for

defrost.

dFd Display during defrost:

rt = real temperature; it = temperature reading at the defrost start;

Set = set point; dEF = "dEF" label;

dAd Defrost display time out: (0

255 min) Sets the maximum time between the end of defrost and

the restarting of the real room temperature display.

dPO First defrost after start-up:

y = Immediately; n = after the IdF time

dAF Defrost delay after fast freezing: (0min÷23h 50min) after a Fast Freezing cycle, the first defrost

will be delayed for this time.

ALARMS

ALC Temperature alarm configuration

rE = High and Low alarms related to Set Point

Ab = High and low alarms related to the absolute temperature.

ALU High temperature alarm setting:

ALC= rE, 0

50°C or 90°F

ALC= Ab, ALL

110°C or 230°F

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

ALL Low temperature alarm setting:

ALC = rE , 0

50 °C or 90°F

ALC = Ab , - 50°C or -58°F

ALU

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

AFH Temperature alarm differential: (0,1÷25,5°C; 1÷45°F) Intervention differential for temperature

alarm set point, always positive.

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

and the corresponding alarm signalling.

1598002153 XW40LS GB VCS r1.0 06.12.2006.doc

Installing and Operating Instructions

and

LED starts blinking).

SET; -58°F÷SET) Sets the minimum acceptable value for

dEG = "dEG" label;

dAO Delay of temperature alarm at start-up: (0min÷23h 50min) time interval between the detection

of the temperature alarm condition after the instrument power on and the alarm signalling.

EdA Alarm delay at the end of defrost: (0

temperature alarm condition at the end of defrost and the alarm signalling.

PROBE INPUTS

Thermostat probe calibration: (-12.0

thermostat probe.

OTHER

PbC Type of probe: it allows to set the kind of probe used by the instrument:

PbC = PBC probe, ntC = NTC probe.

rEL Release software: (read only) Software version of the microprocessor.

Ptb Parameter table: (read only) it shows the original code of the dIXEL parameter map.

Prd Probes display: (read only) display the temperature.

Pr2 Access to the protected parameter list (read only).

6. INSTALLATION AND MOUNTING

Instruments XW40LS 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-

∅

LX). The temperature range allowed for correct operation is 0 - 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.

6.1 CUT OUT

Ø3 x2

6.2 MOUNTING

7. ELECTRICAL CONNECTIONS

The instruments are provided with Faston (2,8mm) to connect the analogue inputs. Relays and power

supply have a Faston connection (6,3mm). Heat-resistant cables have to be used. Before connecting

cables make sure the power supply complies with the instrument's requirements. 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 a suitable external relay.

N.B. Maximum current allowed for all the loads is 20A.

7.1 PROBE CONNECTIONS

The probe 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.

8. USE OF THE PROGRAMMING "HOT KEY "

The Wing units can UPLOAD or DOWNLOAD the parameter list from its own E2 internal memory to the

"Hot Key" and vice-versa.

8.1 DOWNLOAD (FROM THE "HOT KEY" TO THE INSTRUMENT)

Turn OFF the instrument by means of the ON/OFF key, remove the TTL serial cable if present,

insert the "Hot Key" and then turn the Wing ON.

XW40LS

rel.1.0 - cod. 1598002153

255 min) Time interval between the detection of the

12.0°C/ -21

21°F) allows to adjust possible offset of the

165

-1

+0.5

150

-0

RG-LX gascke

(optional)

2/3