Controller Interface; Programming Mode - Emerson Dixell XWi70K Installing And Operating Instructions

7.3 ON –OFF RELAY (OAX = ONF)
By setting one of the parameters oAx=onF, correspondent the relay will operate as "on-off" relay: it
will be activated when the controller is switched on and it will be switched off when the controller is in
stand-by status.
7.4 ALARM RELAY (OAX=ALR)
By setting oAx=ALr the correspondent relay will work as alarm relay, it is switched on when an alarm
happens.
Parameters involved:
- tbA (n, y) Alarm relay silencing
- AoP (cL; oP) Alarm relay polarity
7.5 ANTI-SWEAT HEATER (OAX=TIM)
If oAx=tiM, the correspondent relay will be able to work as Anti-Sweat Heater output.
The relay will work based on the parameters btA (base time setting: seconds or minutes), AtF (output
OFF time) and Ato (output ON time) with the following logic: the relay output will cycle (starting with
the OFF time) between OFF and ON status.
7.6 ENERGY SAVING TIMEOUT
If the Energy Saving function has been activate by buttons or digital input, the Energy Saving will be
automatically deactivated once the time defined in the parameter ESt is expired. If the value of ESt=0
the timeout is not considered and the Energy Saving, once activated by button or digital input, can be
deactivated only manually by the user.
7.7 NEUTRAL ZONE (OAX=DB)
By setting oAx=db the controller will perform a
"neutral zone" regulation.
The heating element has to be connected to the
correspondent relay.
If the temperature increases and reaches set
point plus differential (HY) the compressor is
started and then turned off when the
temperature reaches the set point value again.
If the temperature decreases and reaches the
set point minus differential (HY) the output
(heater) is switched on and then turned OFF
when the temperature reaches again the set
point.
8 KEYBOARDS
Depending on the type of keyboard, some special function could be linked to predetermined buttons.
Follow here below some examples.
8.1 CH620 OR CX620 KEYBOARD
8.2 T620T OR T620H KEYBOARD
To display and modify target set point; in programming mode it selects a parameter
or confirm an operation. By holding it pressed for 3 sec when max or min
temperature is displayed it will be erased.
(UP) To see the max stored temperature; in programming mode it browses the
parameter codes or increases the displayed value.
(DOWN) To see the min stored temperature; in programming mode it browses the
parameter codes or decreases the displayed value.
(DEF) By holding it pressed for 3 sec the defrost is started.
(LIG) Switch ON and OFF the cold room light.
15980xxxxx - XWi70K FULL GB R1.3 24.01.2017.docx
(ONOFF) Switch ON and OFF the instrument.
KEY COMBINATIONS
+
To lock and unlock the keyboard.
+
To enter the programming mode.
+
To exit the programming mode.
8.3 USE OF LEDS
Each LED function is described in the following table.
LED MODE Function
ON The compressor is running
- Programming Phase (flashing with LED
FLASHING
- Anti-short cycle delay enabled
ON The fan is running
FLASHING
Programming Phase (flashing with LED
ON The defrost is enabled
FLASHING Drip time in progress
- ALARM signal
ON
- In "Pr2" indicates that the parameter is also present in "Pr1"
ON Pull down is running
ON Energy saving enabled
eco
ON Light on
ON Auxiliary relay on (CX/CH620 only)
°C/°F ON Measurement unit (CX/CH620 only)
9

CONTROLLER INTERFACE

HOW TO: SET THE CURRENT TIME AND DAY (ONLY WITH RTC)
When the instrument is switched on, it could be necessary to program the real time clock. This
operation requires to enter the rtC menu (depending on the visibility level) and set the following
parameters: HUr (hours), Min (minutes), dAy (day of the week), dYM (day of the month) Mon (month)
and YAr (year).
9.1 HOW TO SEE THE MIN TEMPERATURE
1.
Press and release the DOWN key.
2.
The "Lo" message will be displayed followed by the minimum temperature recorded.
3.
By pressing the DOWN key or waiting for 5 sec the normal display will be restored.
9.2 HOW TO SEE THE MAX TEMPERATURE
1.
Press and release the UP key.
2.
The "Hi" message will be displayed followed by the maximum temperature recorded.
3.
By pressing the UP key or waiting for 5 sec the normal display will be restored.
9.3 HOW TO RESET THE MAX AND MIN TEMPERATURE RECORDED
To reset the stored temperature, when max or min temperature is displayed:
1. Press SET key until "rSt" label starts blinking.
Note: after the installation remember to RESET the temperature stored.
9.4 HOW TO SEE AND MODIFY THE SET POINT
1. Push and immediately release the SET key: the display will show the Set point value;
2. To change the SEt value, push the UP or DOWN arrows within 10 sec.
3. To memorise the new set point value push the SET key again or wait for 10 sec.
9.5 TO START A MANUAL DEFROST
1. Push the DEF key for more than 2 sec and a manual defrost will start.
9.6 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.
9.7 TO SEE THE PROBE VALUES
1.
Enter in "Pr1" level.
2. Parameters "dP1", "dP2", "dP3" and "dP4" display the value of probes P1, P2, P3 and P4.

10 PROGRAMMING MODE

The configuration parameters are divided in groups (named menu). After entering the programming
mode, the first label corresponding to the first available group (menu) will appear on the display
depending on the visibility level. Every parameter belonging to a specific menu has its own visibility
rules for placement in PR1 (user accessible parameters) or PR2 (hidden parameters). Any menu can
have parameters placed both in PR1 and/or PR2.
XWi70K
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