F47 - Evaporator temperature (S2/S3) to start defrosting:
When the evaporator temperature is below the value configured in this function the controller will start the
defrost. If sensor S3 is configured as the second evaporator sensor (F57), the controller will start the
defrost as soon as one of the sensors, S2 or S3, meets this condition. This function is disregarded when the
condition to start the defrost is time (F45).
F48 - Door open time to switch off the fan:
For safety reasons, after a time with the door open equal or longer than the one adjusted in this function has
elapsed, the fan will be switched off in the refrigeration step. This function is disabled when configured
with
[no,,]
(-1).
F49 - Door open time to switch off the control outputs:
For safety reasons, after a time with the door open equal or longer than the time adjusted in this function
has elapsed, the outputs will be switched off (compressor, fan, and defrost). This function is disabled when
configured with
[no,,]
(0).
F50 - Maximum condenser temperature (S3) to switch off the control outputs:
Above this temperature, in addition to the indication of the visual and audible alarms (
[atC2]
) the loads
activated by the outputs will be switched off. This alarm will be deactivated if the S3 input is configured
(F57) for another function. This alarm is ignored until the controller reaches the control temperature for the
first time.
F51 - Control differential for the maximum condenser temperature (hysteresis):
For the loads to be switched on again, the temperature in sensor S3 (condenser) must drop to the value
adjusted in F50 minus the value configured in this parameter.
F52 - Compressor on time without reaching the setpoint to switch off the control outputs:
It is the maximum time the compressor will remain on without reaching the setpoint during the cooling
process. If this time is exceeded, the outputs will be switched off (compressor, fan, and defrost), and the
visual and audible alarms will be activated
[ALrC]
. This function can be disabled by adjusting it to the
minimum value
[no,,]
(0).
NOTE:
In this condition the controller must be switched off and on again to resume normal operation.
F53 - Room temperature alarm delay:
When this configuration is active, the temperature must remain in the alarm condition for the time defined in
this parameter so the alarm can be triggered.
It will avoid false alarms originating from punctual temperature variations, like after a defrost.
F54 - High condenser temperature alarm (S3):
It is the condenser temperature above which the controller will indicate the visual (
[atC1]
) and audible
(F56) high temperature alarm. This alarm will be deactivated if the S3 input is configured (F57) for another
function. This alarm is ignored until the instrument reaches the control temperature for the first time.
F55 - Open door time for the alarm to go on:
If the door is kept open for a time equal or longer than the one configured in this parameter the controller will
activate a visual and audible (F56) door open alarm. The alarms are suspended when the door is closed.
The visual alarm can be inhibited through the key
>
(pressed for 2 seconds). For the door open alarm to
work, one of the digital inputs must be configured as door contact (F57 and F58). This function is disabled
when configured with
[no,,]
(0).
F56 - Enable buzzer:
Allows enabling and disabling the internal buzzer for alarm signaling.
F57 - Function of the digital input 1 / sensor S3:
[Off,]
Off
[,,,1]
Digital input: Activate economic setpoint (NO switch)
[,,,2]
Digital input: Force defrost (NO switch)
[,,,3]
Digital input: Force fast freezing (NO switch)
[,,,4]
Digital input: External alarm (NO)
[,,,5]
Digital input: Door contact (NO)
[,,,6]
Digital input: Activate economic setpoint (NC switch)
[,,,7]
Digital input: Force defrost (NF switch)
[,,,8]
Digital input: Force fast freezing (NC switch)
[,,,9]
Digital input: External alarm (NC)
[,,10]
Digital input: Door contact (NC)
[,,11]
Sensor S3: Temperature difference for economic setpoint (S3-S1)
[,,12]
Sensor S3: Condenser temperature control
[,,13]
Sensor S3: Second evaporator temperature control
[,,14]
Digital input: pressostat 1 status, contact NO
[,,15]
Digital input: pressostat 1 status, contact NC
[,,16]
Digital input: high pressure switch, contact NO
[,,17]
Digital input: high pressure switch, contact NC
F58 - Function of the digital input 2:
[Off,]
Off
[,,,1]
Digital input: Activate economic setpoint (NO switch)
[,,,2]
Digital input: Force defrost (NO switch)
[,,,3]
Digital input: Force fast freezing (NO switch)
[,,,4]
Digital input: External alarm (NO)
[,,,5]
Digital input: Door contact (NO)
[,,,6]
Digital input: Activate economic setpoint (NC switch)
[,,,7]
Digital input: Force defrost (NF switch)
[,,,8]
Digital input: Force fast freezing (NC switch)
[,,,9]
Digital input: External alarm (NC)
[,,10]
Digital input: Door contact (NC)
[,,11]
Digital input: pressostat 2 status, contact NO
[,,12]
Digital input: pressostat 2 status, contact NC
[,,13]
Digital input: low pressure switch, contact NO
[,,14]
Digital input: low pressure switch, contact NC
NOTE:
When digital input is configurated as pressure switch, it allows turn off the compressor outputs, fans
and defrost, displaying the associated alarm to this alarm origin. When there are no longer pressostat
event, the controler returns to initial process configurated.
F59 - S2 Evaporator temperature indication offset:
It allows compensation for possible deviations in the evaporator temperature reading (S2) caused by the
replacement of the sensor or changes in the cable length. Sensor S2 can be switched off by adjusting the
function to the minimum value until the message
[,OFF]
is displayed. In this condition all the functions
that rely on the reading of sensor S2 will be disabled.
F60 - S3 sensor temperature indication offset:
It allows compensation for possible deviations in the S3 sensor temperature reading caused by the
replacement of the sensor or changes in the cable length. Sensor S3 can be switched off by adjusting the
function of the digital input 1 / Sensor S3 (F57) with the value
[,OFF]
(0) or making it to operate as a
digital input.
F61 - Intensity of the digital filter applied to sensor 1 (0 - deactivated):
This filter aims at simulating an increase of thermal mass on the sensor, thus increasing its response
time (thermal inertia). The higher the value adjusted in this function, the longer the response time of the
sensor.
F62 - Function lock:
It allows and configures the function lock (see item 6.3.8).
[,,,0]
- Do not allow the function lock.
[,,,1]
- Allow a partial lock where the control functions will be locked but the adjustment of the
setpoint is allowed.
[,,,2]
- Allow full locking.
NOTE:
The defrost and view of the minimum and maximum temperature records will always be
allowed.
F63 - Time for functions lockdown:
It configures the time in seconds for the command to activate the function lock.
[,,15]
-
[,,60]
Time in seconds for the command to activate the lock.
F64 - Control functions shutdown:
Authorizes switching off the control functions (see item 6.3.9).
[no,,]
Disables the control functions shutdown.
[,,,1]
Enables activation/deactivation of the control functions only if the functions are unlocked.
[,,,2]
Enables activation/deactivation of the control functions even if the functions are locked.
[,,,3]
Enables activation/deactivation of the control functions only if the functions are unlocked.*
[,,,4]
Enables activation/deactivation of the control functions even if the functions are locked.*
* When F64 is configured as 3 or 4 and the control functions shutdown is activated, the controller will
turn off the display, keeping only the indication light on. If any key is touched the display turns on by 5
seconds, turning off again until a new key is touched.
F65 - Operating mode of the room temperature alarms (S1):
Determines whether the values configured for the high room temperature (F07) and low room
temperature (F06) alarms are relative to the setpoint or absolute values.
[,,,0]
- The room temperature alarms F06 and F07 represent values relative to the setpoint.
Example:
Desired temperature
[SP,,]
: - 5ºC
Low temperature alarm
[,F06]
: 2ºC
High temperature alarm
[,F07]
: 2ºC
Limits: (
[SP,,]
-
[,F06]
and
[SP,,]
+
[,F07]
).
The low temperature alarm will be signaled at -7°C (-5-2) and the high temperature alarm at -3°C
(-5+2).
[,,,1]
- the room temperature alarms F06 and F07 are absolute values.
Example:
Low temperature alarm
[,F06]
: -30ºC
High temperature alarm
[,F07]
: 15ºC
The low temperature alarm will be signaled at -30 °C and the high temperature alarm at 15 °C.
F66 - Maximum operating time of the COMP output for maintenance:
Whenever the COMP output is activated the controller will count its operating time. When the counted
time is equal or longer than the one set in this function, the display will show the message
[Amai]
, and
the audible warning will be activated if it is enabled (F56), meaning that the compressor must be
serviced.
NOTE:
The value adjusted in this parameter will be multiplied by ten.
Example:
Value adjusted = 1, then 1*10 = 10 hours for the next service.
F67 - Time to confirm a low evaporator (S2 / S3) temperature to start defrosting (if F45=1):
When the evaporator temperature drops and then reaches the value set in F47, the controller starts
counting the confirmation time to start defrosting. After the counting finishes, if the temperature is still
below the value configured in F47 the defrost is started. If the temperature is above the value
configured in F47 during the counting, the system continues at the refrigeration stage and the count is
reset to zero.
F68 - High pressure event validation time:
It is the minimum time that the pressure switch connected to the discharge line must remain activated in
order to be validated this event. This time is used to avoid unnecessary triggering due to the pressure
oscillation.
F69 - Low pressure event validation time:
It is the minimum time that the pressure switch connected to the suction line must remain on for
validated this event. This time is used to avoid unnecessary triggering due to oscillation of pressure.
F70 - Time to inhibit the reading of the low pressure when initializing:
Delay time that the suction line pressure switch takes to be within its ideal initialize the controller,
avoiding unwanted alarms.
F71 - Time to wait for control return after high pressure event:
After the high pressure event, the controller uses this timeout to then regain control.
F72 - Delay time to return to control after a low pressure event:
After the low pressure event, the controller uses this timeout to then regain control.
F70
F68/F69
Reading validation of
the pressure switch
PRESSURE
SWITCH
ACTIVATED
Pressostat
event OFF
Pressostat
event ON
F71/F72
Control
released
PRESSURE
SWITCH
ACTIVATED
Control
deactivated
by pressure
switch
NOTE 1:
For safety reasons, if controller registers 3 high pressure or 3 low pressure events in one hour
period, three outputs of controller will be turned OFF: Compressor, Defrost & Fan display on controller
will show alarm message
[apHi]
- High pressure alarm or
[aplo]
- Low pressure alarm. To reset
[apHi]
and
[aplo]
alarms a manual intervention is required. To manually reset: short press key
;
on controller to navigate
[Hplp]
option, short press key, select the option ON and press key.
/
/
NOTE 2:
The values set in F57 and F58 must be properly configured for digital inputs of high/low
pressure switches.
NOTE 3:
The F71 and F72 times are independents of the time set in F10 - Minimum compressor time
ON.
