Emerson Dixell XM669K - Page 4

1592023020 XM660K_XM669K GB r1.0 07.01.2013.doc XM660K - XM669K 4/8
SHd Superheat alarm activation delay: (0.0 ÷ 42.0 min: resolution 10s) when a superheat alarm
occurs, the time SHd have to pass before signalling alarm;
FrC Fast-recovery Constant: (0÷100 s) permits to increase integral time when SH is below the set-
point. If FrC=0 fast recovery function is disabled.
DEFROST
dPA defrost Probe A: (nP; P1; P2, P3, P4, P5) first probe used for defrost. If rPA=nP the regulation
is performed with real value of dPb.
dPb defrost Probe B: (nP; P1; P2, P3, P4, P5) second probe used for defrost. If rPB=nP the
regulation is performed with real value of dPA.
dPE defrost virtual probe percentage: (0÷100%) it defines the percentage of the dPA respect to
dPb. The value used to regulate room temperature is obtained by:
value_for_defrost= (dPA*dPE + dPb*(100-dPE))/100
tdF Defrost type: (EL – in) EL = electrical heater; in = hot gas;
EdF Defrost mode: (rtc – in) (only if RTC is present) rtc= defrost activation via RTC; in= defrost
activation with idf.
Srt Heater set point during defrost: (-55.0 ÷ 150.0°C; -67 ÷ 302°F) if tdF=EL during the defrost
the defrost relay perform an ON/OFF regulation with Srt as set point.
Hyr Differential for heater: (0.1°C ÷ 25.5°C , 1°F ÷ 45°F) the differential for heater;
tod Time out for heater: 0 ÷ 255 (min.) if the defrost probe temperature is bigger than Srt for all
tod time the defrost ends altough the defrost probe temperature is lower than dtE or dtS. It
permits to reduce defrost duration;
dtP Minimum temperature difference to start defrost: [0.1°C ÷ 50.0°C] [1°F ÷ 90°F] if the
difference between the two defrost probes stays lower than dtP for all ddP time the defrost is
activated;
ddP Delay before starting defrost (related to dtP): (0 ÷ 60 min) delay related to dtP.
d2P Defrost with two probes: (n – Y) n= only the dPA probe is used to defrost management; Y=
defrost is managed with dPA probe and dPb probe. Defrost can performed only if both probe
value are lower than dtE for dPA probe and dtS for dPb probe;
dtE Defrost termination temperature (Probe A): (-55,0÷50,0°C; -67÷122°F) (Enabled only when
the evaporator probe is present) sets the temperature measured by the evaporator probe dPA
which causes the end of defrost;
dtS Defrost termination temperature (Probe B): (-55,0÷50,0°C; -67÷122°F) (Enabled only when
the evaporator probe is present) sets the temperature measured by the evaporator probe dPb
which causes the end of defrost;
IdF Interval between defrosts: (0÷120h) Determines the time interval between the beginning of
two defrost cycles;
MdF Maximum duration of defrost: (0÷255 min) When dPA and dPb aren’t present, it sets the
defrost duration, otherwise it sets the maximum duration for defrost;
dSd Start defrost delay: (0 ÷ 255 min) This is useful when different defrost start times are
necessary to avoid overloading the plant.
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.
Fdt Drain down time: (0÷255 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 continuous cycle: (0÷23.5h) time interval between the end of the fast
freezing cycle and the following defrost related to it.
FAN
FPA Fan probe A: (nP; P1; P2, P3, P4, P5) first probe used for fan. If FPA=nP the regulation is
performed with real value of FPB;
FPB Fan probe B: (nP; P1; P2, P3, P4, P5) second probe used for defrost. If FPB=nP the regulation
is performed with real value of FPB;
FPE Fan virtual probe percentage: (0÷100%) it defines the percentage of the FPA respect to FPb.
The value used to regulate room temperature is obtained by:
value_for_defrost= (FPA*FPE + FPb*(100-FPE))/100
FnC Fan operating mode: C-n = running with the solenoid valve, OFF during the defrost; C-y =
running with the solenoid valve, 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.
FCt Temperature differential avoiding short cycles of fans (0.0°C ÷ 50.0°C; 0°F ÷ 90°F) If the
difference of temperature between the evaporator and the room probes is more than the value
of the Fct parameter, the fans are switched on;
FSt Fan stop temperature: (-50÷110°C; -58÷230°F) setting of temperature, detected by
evaporator probe, above which the fan is always OFF.
FHy Differential to restart fan: (0.1°C ÷ 25.5°C) (1°F ÷ 45°F) when stopped, fan restarts when fan
probe reaches FSt-FHy temperature;
Fod Fan activation time after defrost: (0 ÷ 255 min.) it forces fan activation for indicated time;
Fon Fan ON time: (0÷15 min) 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÷15 min) 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.
MODULATING OUTPUT (AnOUT) if present
trA Kind of regulation with PWM output: (UAL – rEG – AC) it selects the functioning for the PWM
output if CoM isn’t equal to OA7. UAL= the output is at FSA value; rEG= the output is regulated
with fan algorithm described in fan section; AC= anti-sweat heaters control (require the
XWEB5000 system);
SOA Fixed value for analog output: (0 ÷ 100%) value for the output if trA=UAL;
SdP Default value for Dew point: (-55,0÷50,0°C; -67÷122°F) default value of dew point used when
there is no supervising system (XWEB5000). Used only when trA=AC;
ASr Dew-point offset (trA=AC) / Differential for modulating fan regulation (trA=rEG): (-25.5°C
÷ 25.5°C) (-45°F ÷ 45°F);
PbA Differential for anti-sweat heaters: (0.1°C ÷ 25.5°C) (1°F ÷ 45°F)
AMi Minimum value for analog output: (0÷AMA)
AMA Maximum value for analog output: (Ami ÷ 100)
AMt Anti-sweat heaters cycle period (trA=AC)/ Time with fan at maximum speed (trA=rEG):
(0÷255 s) when the fan starts, during this time the fan is at maximum speed;
ALARMS
rAL Probe for temperature alarm: (nP - P1 - P2 - P3 - P4 - P5 – tEr) it selects the probe used to
signal alarm temperature
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 ÷ 150°C or
302°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 , - 55°C or - 67°F ÷
÷÷
÷
ALU) when this temperature is reached and after the ALd delay time, the LA alarm is enabled.
AHy Differential for temperature alarm: (0.1°C ÷ 25.5°C / 1°F ÷ 45°F) Intervention differential for
recovery of temperature alarm;
ALd Temperature alarm delay: (0÷255 min) time interval between the detection of an alarm
condition and the corresponding alarm signalling.
dLU High temperature alarm (defrost probe): (dLL ÷ 150°C or 302°F) when this temperature is
reached and after the ddA delay time the HAd alarm is enabled.
dLL Low temperature alarm (defrost probe): ( - 55°C or - 67°F ÷
÷÷
÷ dLU) when this temperature is
reached and after the ALd delay time, the LAd alarm is enabled.
dAH Differential for temperature alarm (defrost probe): (0.1°C ÷ 25.5°C / 1°F ÷ 45°F)
Intervention differential for recovery of temperature alarm;
ddA Temperature alarm delay (defrost probe): (0÷255 min) time interval between the detection of
an alarm condition and the corresponding alarm signalling.
FLU High temperature alarm (fan probe): (FLL ÷ 150°C or 302°F) when this temperature is
reached and after the FAd delay time the HAF alarm is enabled.
FLL Low temperature alarm (fan probe): (- 55°C or - 67°F ÷
÷÷
÷ FLU) when this temperature is
reached and after the FAd delay time, the LAF alarm is enabled.
FAH Differential for temperature alarm (fan probe): (0.1°C ÷ 25.5°C / 1°F ÷ 45°F) Intervention
differential for recovery of temperature alarm;
FAd Temperature alarm delay (defrost probe): (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 Temperature alarm exclusion after door open:
Sti Stop regulation interval (Only XM669K): (0.0÷24.0 hours: tens of minutes) after regulating
continuously for Sti time, the valve closes for Std time in order to prevent ice creation.
Std Stop duration (Only XM669K): (0÷60 min.) it defines stop regulation time after Sti. During this
stop display shows StP message
OPTIONAL OUTPUT (AnOUT) if present
OA7 Modulating output configuration (if CoM=0A7): (CPr - dEF - FAn - ALr - LiG - AUS – db) it
selects the functioning of the modulating output in case of CoM=OA7: CPr= compressor; dEF=
defrost; FAn= Fan; Alr= Alarm; LiG= Light; AUS= auxiliary; db= neutral zone (not available with
CrE=Y);
CoM Type of functioning modulating output:
• For models with PWM / O.C. output 

 PM5= PWM 50Hz; PM6= PWM 60Hz;
OA7= two state, it can be used as an open collector output;
• For models with 4÷20mA / 0÷10V output 

 Cur= 4÷20mA current output;
tEn= 0÷10V voltage output;
DIGITAL INPUTS
i1P Digital input 1 polarity: (cL – oP) CL: the digital input is activated by closing the contact; OP:
the digital input is activated by opening the contact.
i1F Digital input 1 function: (EAL – bAL – PAL – dor – dEF – AUS – LiG – OnF – Htr – FHU – ES
– Hdy) EAL= external alarm; bAL= serious external alarm; PAL= pressure switch activation;
dor= door open; dEF= defrost activation; AUS= auxiliary activation; LiG= light activation; OnF=
switch on/off the instrument; Htr= change type of action ; FHU= not used; ES= activate energy
saving; Hdy= activate holiday function;
d1d Time interval/delay for digital input alarm: (0 ÷ 255 min.) Time interval to calculate the number
of the pressure switch activation when i1F=PAL. If I1F=EAL or bAL (external alarms), “d1d”
parameter defines the time delay between the detection and the successive signalling of the
alarm. If i1F=dor this is the delay to activate door open alarm
i2P Digital input 2 polarity: (cL – oP) CL : the digital input is activated by closing the contact; OP:
the digital input is activated by opening the contact.
i2F Digital input 2 function: (EAL – bAL – PAL – dor – dEF – AUS – LiG – OnF – Htr – FHU – ES
– Hdy) EAL= external alarm; bAL= serious external alarm; PAL= pressure switch activation;
dor= door open; dEF= defrost activation; AUS= auxiliary activation; LiG= light activation; OnF=
switch on/off the instrument; Htr= change type of action ; FHU= not used; ES= activate energy
saving; Hdy= activate holiday function;
d2d 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), “d2d”
parameter defines the time delay between the detection and the successive signalling of the
alarm. If i2F=dor this is the delay to activate door open alarm
nPS Pressure switch number: (0 ÷ 15) Number of activation of the pressure switch, during the
“d1d” interval if i1F or “d2d” interval if i2F, before signalling the alarm even., If the nPS
activation in the d1d or d2d time is reached, switch off and on the instrument to restart
normal regulation.
odc Compressor and fan status when open door: no = normal; Fan = Fan OFF; CPr =
Compressor OFF; F_C = Compressor and fan OFF.
rrd Outputs restart after doA alarm: no = outputs not affected by the doA alarm; yES = outputs
restart with the doA alarm;
RTC SUBMENU (if present)
CbP Clock Presence (n÷y): it permits to disable or enable the clock;
Hur Current hour (0 ÷ 23 h)
Min Current minute (0 ÷ 59min)