Emerson XR75CX Installation And Operation Manual page 15

Code Parameter
CF Temperature measurement unit
rES Resolution (for °C)
Lod Device display
Red X- REP display (optional)
dLy Display delay
dtr Percentage of the second and
first probe for visualization
when Lod = dtr (0 to 100; 100
= P1, 0 = P2 )
EdF Defrost mode (only for control-
ler with RTC)
tdF Defrost type
dFP Probe selection for defrost ter-
mination
dtE Defrost termination tempera-
ture
IdF Interval between defrost cycles
MdF (Maximum) length for defrost
dSd Start defrost delay
Table 7-1 - List of Parameters
The ON/OFF Function
DISPLAY
°C = Celsius
°F = Fahrenheit
(CAUTION! When the measurement unit is changed, the setpoint and the values of the
parameters Hy, LS, US, ot, ALU and ALL have to be checked and modified if neces-
sary).
(in = 1°C; dE = 0.1°C)
Allows decimal point display.
(P1; P2, P3, P4, SEt, dtr)
Selects which probe is displayed by the device:
P1 = Thermostat probe
P2 = Evaporator probe;
P3 = Third probe (only for models with this option enabled)
P4 = Fourth probe
SEt = setpoint
dtr = percentage of visualization
(P1; P2, P3, P4, SEt, dtr)
Selects which probe is displayed by X- REP:
P1 = Thermostat probe
P2 = Evaporator probe
P3 = Third probe (only for model with this option enabled)
P4 = Fourth probe
SEt = setpoint
dtr = percentage of visualization
(0 to 20.0 min; resul. 10 seconds)
When the temperature increases, the display is updated of 1°C/1°F after this time.
If Lod = dtr, it allows to set the visualization according to the percentage of the first and
second probe, as for the following formula (dtr(P1-P2)/100 + P2).
DEFROST
rtC = Real Time Clock mode. Defrost time follows Ld1 to Ld6 parameters on work-
days and Sd1 to Sd6 on holidays. in = interval mode. The defrost starts when the time
Idf is expired.
EL = electrical heater
in = hot gas
nP = no probe
P1 = thermostat probe
P2 = evaporator probe
P3 = configurable probe
P4 = probe on Hot Key plug
(-50 to 50°C/ -58 to 122°F) (Enabled only when EdF = Pb)
Sets the temperature measured by the evaporator probe, which causes the end of defrost.
(0 to 120 hr)
Determines the time interval between the beginning of two defrost cycles.
(0 to 255 min)
When P2P = n, (not evaporator probe: timed defrost) it sets the defrost duration, when
P2P = y (defrost end based on temperature) it sets the maximum length for defrost.
(0 to 99 min)
This is useful when different defrost start times are necessary to avoid overloading the
plant.
Function
Parameters • 9