1592026601 XWi70K STD FULL EN r1.6 2022.07.29.docx
XWi70K
5/15
LS
Minimum Set Point:
(-100.0°C to SET; -148°F to SET) fix the minimum value for the
set point.
US
Maximum Set Point:
(SET to 150.0°C; SET to 302°F) fix the maximum value for the
set point.
HY
Compressor regulation differential in normal mode:
(0.1 to 25.0°C; 1 to 45°F) set
point differential. Compressor Cut-IN is
T > SET + HY
. Compressor Cut-OUT is
T<=SET
.
HY1
Proportional band in normal mode:
(0.1 to 25.5°C; 1 to 45°F) define a second
regulation band which is used when double ONOFF compressor regulation or a
variable speed compressor is configured.
odS
Output activation delay at start-up:
(0 to 255 min) this function is enabled after the
instrument power-on and delays the output activations.
AC
Anti-short cycle delay:
(0 to 999 sec) minimum interval between a compressor stop
and the following restart.
AC1
Anti-short cycle delay (2nd compressor):
(0 to 999 sec) delay before activating
second compressor, depending on regulation mode selected by par.
2CC
2CC
Activation mode for 2nd compressor (valid if oAx=CP1 and oAy=CP2):
(FUL;
HAF)
FUL
=second compressor will be activated after
AC1
delay.
HAF
=second
compressor will be activated with step logic.
rCC
Enable compressor rotation:
(n;Y)
n
= CP1 is always the first compressor activated.
Y
= CP1 and CP2 activation is alternated
MCo
Maximum time with compressor ON:
(0 to 255min) maximum time with ONOFF
compressor active. With
MCo=0
this function is disabled.
rtr
Regulation percentage=F(P1; P2) (100=P1; 0=P2):
100=P1 only; 0=P2 only
CCt
Maximum duration for Pull Down:
(0.0 to 99h50min, res. 10min) after elapsing this
time interval, the super cooling function is immediately stopped.
CCS
Pull Down phase differential (SET+CCS or SET+HES+CCS):
(-12.0 to 12.0°C; -21 to 21°F) during any super cooling phase the regulation
SETPOINT is moved to
SET+CCS
(in normal mode) or to
SET+HES+CCS
(in
energy saving mode)
oHt
Threshold for automatic activation of Pull Down in normal mode
(SET+HY+oHt):
(0.0 to 25.5°C; 0 to 45°F) this is the upper limit used to activate the
super cooling function.
Con
Compressor ON time with faulty probe:
(0 to 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 to 255 min) time during which the
compressor is OFF in case of faulty thermostat probe. With
CoF=0
compressor is
always active.
PROBE MENU
–
Prb
PbC
Probe selection:
(ntC; Pt1)
ntC
=NTC type;
Pt1
=PT1000 type
ot
Probe P1 calibration:
(-12.0 to 12.0°C; -21 to 21°F) allows to adjust any possible
offset of the first probe.
P2P
Probe P2 presence:
n
= not present;
Y
= present.
oE
Probe P2 calibration:
-12.0 to 12.0°C; -21 to 21°F) allows to adjust any possible
offset of the second probe.
P3P
Probe P3 presence:
n
= not present;
Y
= the defrost is present.
o3
Probe P3 calibration:
(-12.0 to 12.0°C; -21 to 21°F) allows to adjust any possible
offset of the third probe.
P4P
Probe P4 presence:
n
= not present;
Y
= present.
o4
Probe P4 calibration:
(-12.0 to 12.0°C; -21 to 21°F) allows to adjust any possible
offset of the fourth probe.
VARIABLE SPEED DRIVE MENU
–
vSC
FMi
Minimum value for Variable Speed Compressor (RPM * 10):
(0 to FMA) select
according to the VSC in use
FMA
Maximum value for Variable Speed Compressor (RPM * 10):
(FMi to 500) select
according to the VSC in use
EMi
Minimum value for Variable Speed Compressor (RPM * 10) in Energy Saving
Mode:
(0 to EMA) select according to the VSC in use
EMA
Maximum value for Variable Speed Compressor (RPM * 10) in Energy Saving
Mode:
(EMi to 500) select according to the VSC in use
Fr0
Value when Variable Speed Compressor is shut down (RPM * 10):
(0 to 200) select
according to the VSC in use
tSt
PI regulator, temperature sampling time:
(00:00 to 42min:30sec)
iSt
PI regulator, integral sampling time:
(00:00 to 42min:30sec)
vdC
Type of Variable Speed Compressor:
(nu; FrE)
nu
= no VSC in use;
FrE
= VSC with
frequency control mode is used;
VC1
= Embraco with serial control;
VC2
= SECOP
with serial control.
voS
Signal output variation for Variable Speed Compressor:
(0 to 100 Hz or RPM*10)
VSC variation when
SET-
HY ≤ T ≤ SET+HY
vo2
Signal output variation for Variable Speed Compressor:
(0 to 100 Hz or RPM*10;
nu)) VSC variation when
SET-HY-
HY1≤T<SET
-
HY and SET+HY<T≤SET+HY+HY1
vo3
Signal output variation for Variable Speed Compressor:
(0 to 100 Hz or RPM*10;
nu)) VSC variation when
SET-HY-HY1<T and T>SET+HY+HY1
PdP
Variable Speed Compressor (in %) during any Pull Down:
(0 to 100%) this value
is always calculated using FMi and FMA limits. 0=function disabled.
SPi
Compressor speed (in %) in case of any probe error during Con interval:
(0 to
100%) this value is always calculated using FMi and FMA limits.
Aod
Compressor speed (in %) during any defrost cycle (valid if tdf=in):
(0 to 100%)
this value is always calculated using FMi and FMA limits.
AoF
Compressor speed (in%) during a pre-defrost phase (valid if tdf=in):
(0 to 100%)
this value is always calculated using FMi and FMA limits.
tHv
PI regulator, max interval for output variation:
(tLv to 255 sec)
tLv
PI regulator, min interval for output variation:
(1 sec to tHv)
rSr
PI regulator, range for output value calculation (RPM * 10):
(0=disabled; 1 to 255
RPM*10)
Str
PI regulator, delay before range drift:
(0 to 255 sec)
dPt
PI regulator, divisor for PI response time reduction (acts on both par. tSt and
iSt):
(1 to 10)
CMn
Continuous control ON in normal mode:
(n; Y)
Y
= VSC is never stopped during
regulation.
CME
Continuous control ON in energy saving mode:
(n; Y)
Y
= VSC is never stopped
during regulation.
MnP
Compressor speed threshold to activate lubrication (valid for variable speed
compressors only, 0=disabled):
(nu; 1 to 100%; OFF) nu = not used; 1 to 100% =
select the percentage to activate function; OFF = compressor is stopped when the
condition is reached
tMi
Time range with compressor speed below MnP to activate lubrication cycle:
(00:00 to 24h00min) time before activating the lubrication function
tMA
Time range with compressor speed at 100% to activate lubrication cycle:
(0 to
255 min) VSC will be forced to 100%, for
tMA
, after activating the lubrication function.
NOTE: if
MnP=OFF
, VSC will be stopped for
tMA
A00
Number of serial controlled VSC:
(1 to 2) number of VSC connected
A01
Serial address for compressor 1:
(1 to 247)
A02
Serial address for compressor 2:
(1 to 247)
VARIABE SPEED FAN (MODBUS) - vSF
S00
Number of serial condenser fans (0=disabled):
(0 to 4) number of variable
speed condenser fans controlled via Modbus. Only EMB ventilators are supported.
C01…C04
Serial addresses for condenser fans:
(1 to 247) up to 4 condenser fan can be
controlled in parallel (all of them will use the same speed value).
F12
Serial baudrate for condenser fan (kbaud): 4.8
=4800baud;
9.6
=9600baud;
19.2
=19200baud
SFr
Direction of rotation for condenser fan:
(Lt; rt)
Lt
= left rotation;
rt
= right rotation
tCC
Time with condenser efficiency function activated:
(0 to 255 sec) interval for
condenser fans cleaning function.
CdF
Default configuration sent to condenser fan (at power on):
(n; Y)
DISPLAY MENU - diS
CF
Temperature measurement unit:
(°C; °F)
°C
= Celsius;
°F
= Fahrenheit.
rES
Temperature resolution:
(dE; in)
dE
= decimal;
in
= integer.
rEd
Remote keyboard visualization:
(P1; P2; P3; P4; Set; dtr)
Px
=probe “x”;
Set
=set
point;
dtr
=percentage calculated from P1 and P2 and using par.
dtr
.
dLY
Temperature display delay:
(0.0 to 20min00sec, res. 10 sec) when the temperature
increases, the display is updated of 1°C or 1°F after this time.
dtr
Probe visualization percentage, F(P1; P2):
(1 to 99)
with
dtr=1
the display will show
this value
VALUE=0.01*P1+0.99*P2
DEFROST MENU - dEF
EdF
Defrost mode:
in
=fixed intervals;
rtC
=following real time clock
tdF
Defrost type: EL
=electrical heaters;
in
=hot gas
dFP
Probe selection for defrost control:
(nP; P1; P2; P3; P4)
nP
=no probe;
Px
=probe
“x”.
dSP
Probe selection for 2
nd
defrost control:
(nP; P1; P2; P3; P4)
nP
=no probe;
Px
=probe “x”.
dtE
End defrost temperature:
(-55 to 50°C; -67 to 122°F) sets the temperature measured
by the evaporator probe (
dFP
), which causes the end of defrost cycle.
dtS
End 2
nd
defrost temperature:
(-55 to 50°C; -67 to 122°F) sets the temperature
measured by the evaporator probe (
dFP
), which causes the end of defrost cycle.
idF
Interval between two successive defrost cycles:
(0 to 120 hours) determines the
time interval between the beginning of two defrosting cycles.
MdF
Maximum length of defrost cycle:
(0 to 255 min; 0 means no defrost) when
P2P=n
(no evaporator probe presence) it sets the defrost duration, when
P2P=Y
(defrost end
based on evaporator temperature) it sets the maximum length for the defrost cycle.
MdS
Maximum length of 2
nd
defrost cycle:
(0 to 255 min; 0 means no defrost) when
P2P=n
(no evaporator probe presence) it sets the defrost duration, when
P2P=Y
(defrost end based on evaporator temperature) it sets the maximum length for the
defrost cycle.
dSd
Start defrost delay:
(0 to 255 sec) delay in defrost activation.
StC
Compressor off-cycle before starting any defrost:
(0 to 255 sec) interval with
compressor OFF before activating hot gas cycle
dFd
Displaying during defrost:
(rt; it; SEt; dEF; Coo)
rt
= real temperature;
it
= start
defrost temperature;
SEt
= set point;
dEF
= label “
dEF
”;
Coo
= when a defrost ends,
it shows the label “Coo” until the regulation temperature is above
SET+HY+HY1
dAd
Temperature display delay after any defrost cycle:
(0 to 255 min) delay before
updating the temperature on the display after the end of any defrost.
Fdt
Draining time:
(0 to 120 min) regulation delay after finishing a defrost phase
Hon
Drain heater enabled after draining time (par. Fdt):
(0 to 255 min) the relative output
will stay on after draining time.
SAt
Sampling time to calculate the average compressor speed before any desfrost
cycle:
(0 to 255 min) the average compressor speed is used only with VSC.
dPo
Defrost cycle enebled at stat-up:
(n; Y) enables defrost at power on.
dAF
Pre-defrost time:
(0 to 255 min) enable a lower setpoint (SET-1°C or SET-2°F) before
activating the defrost phase.
od1
Automatic defrost (at the beginning of any energy saving mode):
(n; Y)
n
=function
disabled;
Y
=function enabled
od2
Optimized defrost:
(n;Y)
n
= function disabled;
Y
= the controller needs a temperature
probe placed on the evaporator surface to monitor the presence of ice during any
defrost phase.
Syd
Type of synchronized defrost:
(n; SYn; nSY; rnd)
n
= function disabled;
SYn
=
synchronized, all devices connected will start a defrost phase at the same time.
nSY
= de-synchronized, all devices connected will delay the beginning of the same defrost
phase;
rnd
= random defrost function.
dt1
Differential temperature for latent heating control
(0.1 to 1.0 °C) to catch the latent
heating phase during any defrost
ndE
Number of connected controllers for special defrost operations (valid if
Syd=SYn, nSY or rnd):
(1 to 20) number of devices connected to the same network
for syncro, desyncro or random defrost.
FAN MENU - FAn
FAP
Probe selection for evaporator fan:
(nP; P1; P2; P3; P4)
nP
=no probe;
Px
=probe “x”.
