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MICROPROCESSOR-BASED DIGITAL ELECTRONIC FREEZER CONTROLLER
712 136511 8
9
10
3
4
1
2
Aux
-OK+
Fan AuxDefOut
AL
TLY 25
1 - Key P: Used for setting the Set point and for programming the function parameters
2 - Key DOWN/Aux: Used for decreasing the values to be set and for selecting the parameters. It can also be programmed via
the parameter “Fbd” to carry out other functions such as activating the Aux output, starting up the
continuous cycle, selecting the active set point or turning on and off (stand-by) the device.
3 - Key UP/DEFROST: Used for increasing the value to be set, for selecting the parameters and for activating manual defrosting.
4 - Key U: Used for visualising the temperatures taken by the cell probes and evaporator (Pr1 and Pr2) and the internal clock
(if present). It can also be programmed via the parameter “USrb” to carry out other functions, just like the
key DOWN/AUX (see par. 4.12).
5 - Led OUT: Indicates the compressor output status (or the temperature control device) on (on), off (off) or inhibited (flashing)
6 - Led DEF: Indicates defrosting in progress (on) or dripping (flashing).
7 - Led FAN: Indicates fan output status on (on), off (off) or delayed after defrosting (flashing)
8 - Led AUX: Indicates AUX output status on (on), off (off) or inhibited (flashing)
9 - Led AL: Indicates the alarm status (on), (off) and silenced or memorized (flashing)
10 - Led SET: Indicates the input in programming mode and the programming level of the parameters. It also serves to indicate
the Stand-by status.
11 - Led -: Indicates that a low temperature alarm is in progress (lit) or that a low temperature alarm has been memorised
(flashing).
12 - Led OK: Indicates that no alarms are in progress
13 - Led +: Indicates that a high temperature alarm is in progress (lit) or that a high temperature alarm has been memorised
(flashing)