1592009130 XW570L GB r1.0 03.08.2015
XW570L
3/5
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;
dEG
= “dEG” 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.
Fdt Drain down time:
(0÷60 min.) 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:
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.
FANS
FnC Fan operating mode:
C-n
= running with the compressor, OFF during the defrost;
C-y
= running with the compressor, ON during the defrost;
O-n
= continuous mode, OFF during the defrost;
O-y
= continuous mode, ON during the defrost;
Fnd Fan delay after defrost:
(0÷255 min)
The time interval between the defrost end and evaporator fans start.
FSt Fan stop temperature:
(-50÷110°C; -58÷230°F) setting of temperature, detected by evaporator probe,
above which the fan is always OFF.
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 and fan differential:
(0,1÷25,5°C; 1÷45°F) Intervention differential for temperature
alarm set point and fan regulation 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.
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
255 min) Time interval between the detection of the temperature
alarm condition at the end of defrost and the alarm signalling.
dot Delay of temperature alarm after closing the door :
(0
255 min) Time delay to signal the temperature
alarm condition after closing the door.
doA Open door alarm delay:
(0÷254min,nu) delay between the detection of the open door condition and its
alarm signalling: the flashing message “
dA
” is displayed. If
doA=nu
the door alarm will be not signalled.
tbA Buzzer and alarm relay silencing:
by pushing one of the keypad buttons.
n
= Only the Buzzer is silenced;
y
=
Buzzer and relay are silenced.
nPS Pressure switch number:
(0
15) Number of activation of the pressure switch, during the “
did
” interval,
before signalling the alarm event (I2F= PAL).
ANALOGUE OUTPUT 4÷20 mA (OPTIONAL)
AOS Analogue output start point:
(-50÷110°C or -58°÷230°F). Sets the temperature at which the analogue
output begins.
APB Analogue output band width
:
(-50÷110°C or -58°÷230°F) sets the width of the regulation band for the
analogue output. If APb is
positive
then it is above the start point and the kind of action is direct
(condenser application). If APb is
negative
then it is below the start point and the kind of action is inverse
(evaporator application).
CAO Input type for the analogue output:
four input types can be selected:
P1
= room probe temperature;
P2
= evaporator probe temperature;
P3
= temperature of the third probe
1r2
= temperature difference between the room probe and the evaporator probe
PROBE INPUTS
Ot Thermostat probe calibration:
(-12.0
12.0°C/ -21
21°F) allows to adjust possible offset of the
thermostat probe.
OE Evaporator probe calibration:
(-12.0
12.0°C/ -21
21°F) allows to adjust possible offsets of the
evaporator probe.
O3 Auxiliary probe calibration:
(-12.0
12.0°C/ -21
21°F) allows to adjust possible offsets of the evaporator
probe.
P2P Evaporator probe presence:
n
= not present: the defrost stops only by time;
y=
present: the defrost stops by temperature and time.
P3P Auxiliary probe presence: n
= not present;
y=
present.
HES Temperature increase during the Energy Saving cycle :
(-30÷30°C / -54÷54°F) sets the increasing
value of the set point during the Energy Saving cycle.
DIGITAL INPUTS
odc Compressor and fan status when open door:
no
= normal;
Fan
= Fan OFF;
CPr
= Compressor OFF;
F_C
= Compressor and fan OFF.
I1P Door switch input polarity:
CL
: the digital input is activated by closing the contact;
OP
: the digital input is activated by opening the contact.
I2P Configurable digital input polarity:
CL
: the digital input is activated by closing the contact;
OP
: the digital input is activated by opening the contact
I2F Digital input operating mode:
configure the digital input function:
EAL
= generic alarm;
bAL
= serious alarm mode;
PAL
= Pressure switch;
dFr
= Start defrost;
AUS
= Relay AUX actuation;
Es
= Energy Saving;
onF
= remote On/OFF;
Hdf
= Holiday function.
did Time interval/delay for digital input alarm:
(0
255 min.) Time interval to calculate the number of the
pressure switch activation when I2F=PAL. If I2F=EAL or bAL (external alarms), “did” parameter defines
the time delay between the detection and the successive signalling of the alarm.
TO SET CURRENT TIME AND WEEKLY HOLIDAYS (3SEC.
afterward
)
Hur
Current hour
(0 ÷ 23 h)
Min
Current minute
(0 ÷ 59min)
dAY
Current day
(Sun ÷ SAt)
Hd1
First weekly holiday
(Sun ÷ nu) Set the first day of the week which follows the holiday times.
Hd2
Second weekly holiday
(Sun ÷ nu) Set the second day of the week which follows the holiday times.
Hd3
Third weekly holiday
(Sun ÷ nu) Set the third day of the week which follows the holiday times.
N.B.
Hd1,Hd2,Hd3
can be set also as
“nu”
value (Not Used).
TO SET ENERGY SAVING TIMES (3SEC.
afterward
)
ILE
Energy Saving cycle start during workdays
: (0 ÷ 23h 50 min.) During the Energy Saving cycle the
set point is increased by the value in HES so that the operation set point is SET + HES.
dLe
Energy Saving cycle length during workdays
: (0 ÷ 24h 00 min.) Sets the duration of the Energy
Saving cycle on workdays.
ISE
Energy Saving cycle start on holidays
. (0 ÷ 23h 50 min.)
dSE
Energy Saving cycle length on holidays
(0 ÷ 24h 00 min.)
HES Temperature increase during the Energy Saving cycle
(-30÷30°C / -54÷54°F) sets the increasing
value of the set point during the Energy Saving cycle.
TO SET DEFROST TIMES (3SEC.
afterward
)
Ld1÷Ld8 Workday defrost start
(0 ÷ 23h 50 min.) These parameters set the beginning of the eight
programmable defrost cycles during workdays. Ex. When
Ld2
= 12.4 the second defrost starts at 12.40
during workdays.
Sd1÷Sd8 Holiday defrost start
(0 ÷ 23h 50 min.) These parameters set the beginning of the eight
programmable defrost cycles on holidays. Ex. When
Sd2
= 3.4 the second defrost starts at 3.40 on
holidays.
N.B. :
To disable a defrost cycle set it to “nu”(not used).
Ex.
If
Ld6
=nu
;
the sixth defrost cycle is disabled
OTHER
Adr RS485 serial address
(1÷247)
:
Identifies the instrument address when connected to a ModBUS
compatible monitoring system.
Rel Release software:
(read only) Software version of the microprocessor.
Ptb Parameter table:
(read only) it shows the original code of the Dixell parameter map.
Prd Probes display:
(read only) display the temperature values of the evaporator probe Pb2 and the auxiliary
probe Pb3.
Pr2 Access to the protected parameter list
(read only).
7.
DIGITAL INPUTS
The Wing series can support up to 2 free contact digital inputs. One is always configured as door switch, the
second is programmable in seven different configurations by the “
I2F
” parameter.
7.1
DOOR SWITCH INPUT
It signals the door status and the corresponding relay output status through the “
odc
” parameter:
no
= normal (any change);
Fan
= Fan OFF;
CPr
= Compressor OFF;
F_C
= Compressor and fan OFF.
Since the door is opened, after the delay time set through parameter “
dOA
”, the alarm output is enabled and the
display shows the message “
dA
”. The alarm stops as soon as the external digital input is disabled again. During
this time and then for the delay “
dot
” after closing the door, the high and low temperature alarms are disabled.
7.2
CONFIGURABLE INPUT - GENERIC ALARM (EAL)
As soon as the digital input is activated the unit will wait for “
did
” time delay before signalling the “
EAL
” alarm
message. The outputs status don’t change. The alarm stops just after the digital input is de-activated.
7.3
CONFIGURABLE INPUT - SERIOUS ALARM MODE (BAL)
When the digital input is activated, the unit will wait for “
did
” delay before signalling the “
BAL
” alarm message.
The relay outputs are switched OFF. The alarm will stop as soon as the digital input is de-activated.
7.4
CONFIGURABLE INPUT - PRESSURE SWITCH (PAL)
If during the interval time set by “
did
” parameter, the pressure switch has reached the number of activation of
the “
nPS
” parameter, the “
PAL
” pressure alarm message will be displayed. The compressor and the regulation
are stopped. When the digital input is ON the compressor is always OFF.
7.5
CONFIGURABLE INPUT - START DEFROST (DFR)
It executes a defrost if there are the right conditions. After the defrost is finished, the normal regulation will
restart only if the digital input is disabled otherwise the instrument will wait until the “Mdf” safety time is expired.
7.6
CONFIGURABLE INPUT - RELAY AUX ACTUATION (AUS)
This function allows to turn ON and OFF the auxiliary relay by using the digital input as external switch.
7.7
CONFIGURABLE INPUT - ENERGY SAVING (ES)
The Energy Saving function allows to change the set point value as the result of the SET+ HES (parameter)
sum. This function is enabled until the digital input is activated.
7.8
CONFIGURABLE INPUT - REMOTE ON/OFF (ONF)
This function allows to switch ON and OFF the instrument.
7.9
CONFIGURABLE INPUT - HOLIDAY FUNCTION (HDF)
In Holiday function Energy saving and defrost cycles follow holiday times.
(Sd1…Sd8)
7.10
DIGITAL INPUTS POLARITY
The digital inputs polarity depends on “
I1P
” and “
I2P
” parameters.
CL
: the digital input is activated by closing the contact.
OP
: the digital input is activated by opening the contact
8.
ANALOGUE OUTPUT 4÷20 MA (OPTIONAL)
The analogue output is obtained through a 4
20mA signal proportional to the input selected in parameter
“
CAO
”. Through the analogue output the speed of fans can be regulated according to the input variable.
The following input types can be selected through the “
CAO
” parameter:
“
CAO
” =
P1
room temperature
“
CAO
” =
P2
evaporator temperature
“
CAO
” =
P3
third probe temperature
“
CAO
” =
1r2
room temperature - evaporator temperature
To adjust the analogue output the following parameters are available:
“
AOS
” = Start point for analogue output
“
APb
” = Band width for analogue output can be either positive (direct action) and negative
(inverse action).
Named T the input, the relationship input-output is given by the following charts
