F02 - Sensor indication displacement (offset):
Allows compensation for any temperature deviations from sensor replacement or change in the cable
length.
F03 -
Using Presets:
Allows configuration of the controller so as whether or not to use the presets:
[no,,]
- No:
If configured this way, the instrument will not use the preset values in the control routines.
For this purpose, the setpoint
[SP,,]
will be used, adjusted via the quick access menu. The control
differential to be used shall be the same as in preset
,
[,F06]
-
“OUT1 output control
[Rc1,]
differential (
[rc1,]
)”. The cooling time to be used shall be the same as in preset
,
[,F07]
-
[Rc1,]
OUT1 output cooling time (
) ”.
Defrost time to be used will be the same as in preset 1,
[,F08]
-
[Rc1,]
“
OUT1 output defrost time (
) ”.
[Rc1,]
The value configured in
[sp,,]
may be adjusted between
[,F13]
- “
Minimum setpoint allowed to the
end user” and
[,F14]
-
“Maximum setpoint allowed to the end user”.
In this configuration, the controller will not indicate which preset is enabled.
[yEs,]
- Yes:
Selection of presets will be made through the quick access menu, in the same way as for
adjusting the setpoint. In this configuration, the controller will indicate in the display which preset is
enabled,
[rc1,]
or
[rc2,]
. If configured this way, in the control routines the instrument will use the
values of setpoint, control differential, cooling time and defrost time configured in the parameters table.
F04 - Output operating mode OUT1:
Selects the out1 output operating mode:
[,,,0]
- Cooling
[,,,1]
- Heating
F05 - Operation setpoint (
):
[Rc1,]
It is the reference value for temperature control, that is, the temperature to be maintained in a controlled
environment when preset (
[rc1,]
) is used.
F06 - Control differential (Hysteresis) (
):
[Rc1,]
It is the difference in temperature (hysteresis) between TURNING ON and OFF the cooling (or heating)
when recipe (
[rc1,]
) is used.
Example:
One wants to control the temperature at 4.0 °C with a differential of 1.0 °C. Therefore, the
cooling is switched off at 4.0 °C and switched back on at 5.0 °C (4.0 + 1.0).
F07 -
Cooling time (interval between defrosts) (
):
[Rc1,]
Corresponds to the time the controller will act on cooling when preset (
), is used; following this
[Rc1,]
period, the controller enters the natural defrost process.
F08 -
Defrost time (
):
[Rc1,]
It is the defrost duration time when preset (
) is used. Within this period, the relay will remain off;
[Rc1,]
following this period, the controller will then return to the cooling state.
F09 -
Operation setpoint (
):
[Rc2,]
It is the reference value for temperature control, that is, the temperature to be maintained in a controlled
environment when preset (
) is used.
[Rc2,]
F10 -
Control differential (Hysteresis) (
[rc2,]
):
It is the difference in temperature (hysteresis) between TURNING ON and OFF the cooling (or heating)
when preset (
[rc2,]
) is used.
Example:
One wants to control the temperature at 4.0 °C with a differential of 1.0 °C. Therefore, the
cooling is switched off at 4.0 °C and switched back on at 5.0 °C (4.0 + 1.0).
F11 -
Cooling time (interval between defrosts) (
[rc2,]
):
Corresponds to the time the controller will act on cooling when recipe (
[rc2,]
) is used; following this
period, the controller enters the natural defrost process.
F12 -
Defrost time (
[rc2,]
):
It is the defrost duration time when preset (
[rc2,]
) is used. Within this period, the relay will remain off;
at the end of this period, the controller will return to the cooling state.
F13 -
Minimum setpoint allowed to the end user:
Avoids regulation of excessively low setpoint temperatures by mistake
.
F14 -
Maximum setpoint allowed to the end user:
Avoids regulation of excessively high setpoint temperatures by mistake.
F15 -
Minimum OUT1 output time on:
It is the minimum time the compressor will remain on, i.e. the time interval between the last start-up and
the next stop.
F16 -
Minimum OUT1 output time off:
It is the minimum time the compressor will remain off, i.e. the time interval between the last stop and the
next start-up. It is used to relieve the discharge pressure and increase the service life of compressor.
F17 - Initial status when energizing the instrument:
It allows defrosting when controller is energized such as, for example, upon resuming of electric power
(in the event of power outage).
[,,,0]
- Cooling
[,,,1]
- Defrost
F18 - Temperature indication locked during defrost:
If
[,F18]
is enabled, the indication will only be released at the next cooling cycle after the temperature
reaches the “locked” value again, or after 15 minutes in cooling (as a safety measure).
F19 - Instrument energization delay:
This function being enabled, when the instrument is energized it only works as temperature indicator
remaining with the output off during the defined time. In installations with several units of equipment,
configuring different values for the delay time in the start-up of each instrument, it is possible to avoid
peaks of demand by activating the loads at different times.
This delay may be of the compressor or of defrost (when defrost is configured at the start).
Note:
At its end, the count of minimum time of output off is started, if there is any.
F20 - Compressor status with the sensor damaged:
If the sensor is in short-circuited, off or out of the measure range, the compressor assumes the set status
in this function.
[,,,0]
- Compressor off
[,,,1]
- Compressor on
[,,,2]
- Cycling according to times defined in
[,F21]
and
[,F22]
Note:
If in the heating mode, and in error, the output will be switched off.
F21 - Compressor time on in case of error:
F22 - Compressor time off in case of error:
These determine the minimum time the compressor will remain on/off, respectively, if the sensor is off or
out of the measure range.
F23 - Maximum Compressor on without reaching setpoint:
This is the maximum time the compressor may remain on without reaching the setpoint during the
cooling process for safety reasons. If this time is surpassed, the output is switched off and also the visual
alarm
[ALrC]
and the audible alarm (buzzer) will be activated. This function can be switched off by
setting it at the minimum value 0
[no,,]
.
Note 1:
In this situation, the controller should be switched off and switched back on so as to continue
with the operation.
Note 2:
If the OUT2 output is set up to work differently from the alarm, this will also be switched off for
safety reasons.
F24 - Low temperature alarm:
It is the temperature below that which the instrument will visually display the low temperature alarm
[atlo]
as well as the audible alarm (Buzzer). The differential for switching off the alarm is fixed at
0.1°C / 1°F. This alarm considers the temperature shown on the display, thus being influenced by the
temperature indication that was locked during the defrost
[,f18]
. To disable this alarm, simply set this
function to the minimum value until
[,,no]
.
F25 - High temperature alarm :
It is the temperature above that which the instrument will visually display the high temperature alarm
[athi]
as well as the audible alarm (Buzzer). The differential for switching off the alarm is fixed at
0.1°C/1°F. This alarm considers the temperature shown on the display, thus being influenced by the
temperature indication that was locked during the defrost
[,f18]
. To disable this alarm, simply set this
function to the maximum value until
[,,no]
is displayed.
Note:
For safety, output OUT1 is switched
[athi]
occurs, or if it is configured for cooling and a low
temperature alarm
[atlo]
occurs, therefore, you must set the alarm limits above (if heating) or below
(if cooling) the desired temperature (setpoint of output OUT1).
F26
- Output OUT2 operation mode:
Select the operating mode of the OUT2 output.
[,,,1]
-Extra alarm-absolute range:
It considers the values defined in
[,F24]
and
[,F25]
as
minimum and maximum values to trigger the alarm output.
[,,,2]
-Extra alarm-setpoint range:
It considers the active receipt setpoint
[Rc1,]
or
[Rc2,]
and the absolute values defined in
[,F24]
and
[,F25]
, that is, the positive value of these functions
as minimum and maximum values to trigger the alarm output.
For example:
Desired temperature
[SP,,]
: - 5ºC
Low temperature alarm
[,F24]
: 2ºC
High temperature alarm
[,F25]
: 2ºC
City Limits: (
[SP,,]
-
[,F24]
and
[SP,,]
+
[,F25]
).
The low temperature alarm will go off at -7°C (-5-2) and the high temperature alarm at -3°C (-5+2).
[,,,3]
-Electric defrost (using resistances):
Where only the OUT2 output is activated during the
defrost process.
[,,,4]
-Hot gas defrost
: Where the compressor outputs OUT1 and OUT2 are activated during the
defrost process.
[,,,5]
-Output OUT2 as NF of output OUT1
: In this option, the OUT2 output is activated when the
OUT1 output is deactivated, regardless of the state (cooling / heating or defrost), except when the
sensor is in error
[,F20]
.
[,,,6]
-
OUT2 output as ventilation:
In this mode, the output will be used to activate a fan that will
remain on during the defrost interval. While the controller is cooling, the output will remain in operation
according to the configuration selected in function
[,F27]
- Fan Operation Mode during cooling.
[,,,7]
-
OUT2 output as an auxiliary compressor
: The output will be used to start a second
compressor. Output OUT2 will be activated immediately after output OUT1 is activated, according to the
value configured in function
[,F31]
- Delay between the activation of compressors, and always
switched off together with output OUT1.
Note 1:
If the OUT2 output is configured to work different than an alarm, the absolute alarm indications
are still visual (messages on the display) and audible (if the buzzer is enabled).
Note 2:
If the OUT2 output is configured for defrost (electric or hot gas), after the defrost time has
elapsed, a fixed time of 2 minutes is counted for drainage. This time is necessary for dripping, that is, for
the last drops of water to drain from the evaporator. During this period, outputs OUT1 and OUT2 remain
off.
Nota 3:
If output OUT2 is configured for ventilation, and if a sensor error occurs, output OUT2 will be
activated and deactivated together with output OUT1, that is, if OUT1 is activated OUT2 remains
activated, and will continue to work together according to the configuration selected in function [
,F20]
- Compressor status with the sensor disconnected.
Nota 4:
If OUT2 output is configured as ventilation and function
[F35]
(Digital input operating mode) is
configured as 1 or 2 (door open), OUT2 output will be turned off whenever the door is opened and turned
back on when closing the door. If the door remains open for the time defined in
[F38]
(Door open time
to issue alarm), the OUT1 and OUT2 outputs will remain off while the door is open.
F01- Access code 123 (one hundred and twenty-three):
This is required when intending to change the configuration parameters. Entering of this code is not
required if the intention is just visualizing the parameters adjusted.
It allows entering of the expected access codes:
[,123]
- Allows access for changing the table parameters.
[,231]
- Allows configuring of the unit of measurement
[,=f,]
or
[,=C,]
.
[,231]
- To select the unit in which the instrument will operate enter the function
[,F01]
using the
access code
[,231]
then press the
/
key. Then, select the unit desired
[,=C,]
or
[,=F,]
using
the
< >
keys; to confirm press
/
.
or
Note:
Every time the unit is changed, the parameters should be reset, since they assume the ‘standard’
values of the parameter’s table.
Temperature [°C]
Setpoint
Cooling
Se Hysteresis
Time [S]
Relay Off
Relay On
4°C
5°C
Temperature [°C]
Setpoint
Heating
Setpoint - Hysteresis
Time [S]
4°C
5°C
Relay Off
Relay On
6.5.1. Description of parameters
