4.2
Output functionality
4.2.1
Compressor
Control is carried out according to the temperature measured by the control probe with a positive differential
to the set point. If the temperature reaches and exceeds the set point value plus the differential, the
compressor output opens and closes again when the temperature returns to the set point value.
In the event of a probe fault, the compressor is switched on or off by the Cone CoF parameters.
4.2.2
Defrosting
Defrosting activation mode
In any case, the device checks the temperature of the defrosting probe before starting the procedure.
Defrosting can be triggered locally (manual activation or from the digital input or when the idF interval expires)
or the command to start defrosting can be issued from the local network. In this case, defrosting follows the set
parameters and at the end of the drip time, the instrument will wait until the other controllers have also
finished defrosting before resuming adjustment in accordance with the dEM parameter.
Whenever a controller within the local network starts defrosting, the defrosting start command can also be
sent to the other controllers in accordance with what is configured via parameter LMd.
Defrosting end mode
When defrosting is activated by the clock (if present), the maximum duration of the defrosting procedure is
obtained from the value of the parameter MdF and the defrosting end temperature is given by the
parameter dtE (and dtS if two probes have been selected).
If dPA and dPb are present and configured and d2P=y the instrument terminates the defrosting procedure when
dPA is greater than dtE and dPb is greater than dtS.
At the end of the defrosting procedure, the drip is carried out, the duration of which can be set via parameter
Fdt.
4.2.3
Evaporator fans - control via relay
The fan control mode is selected by the parameter FnC.
C, n: the fans run in parallel with the compressor, they are switched off during defrosting.
C, y: the fans run in parallel with the compressor, switched on during defrosting.
O, n: fans always on, off in defrosting OFF.
O, y: fans always on, also active in defrosting.
A further FSt parameter allows the lockout temperature of the fans, detected by the probe selected to control
them, to be set. This can be used to be sure to activate the fans when the air is sufficiently cold.
4.3
Input and output specifications
4.3.1
Digital input polarity
The digital input depends on the parameter i#P.
CL: the digital input is active when the contact is closed
OP: The digital input is active when the contact is open.
4.3.2
Power output devices
Cold room light
The maximum luminaire power that can be connected to the cold room light cable (supplied) is 10W for LED
lamps (power supply 230V- 50/60Hz).
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