41
ENG
mpxone +0300086EN rel. 2.2 - 13.11.2023
Functions
Switch to standby status (par. DIM)
Standby status is an intermediate state between ON and OFF: control is interrupted, the expansion valve is closed (0%), the con-
trol alarms and probe alarms remain active. ON status (normal operation) resumes after the time Stt has elapsed, after switching
off (OFF status) or when the controller is restarted.
Code Description Def Min Max UOM User User terminal
DIM Assign standby mode switch digital input
- see DIA
0-15- SNO
Stt Maximum time for standby status 0 0 240 min S NO
Switch to clean status (par. DIn)
Clean status is an intermediate state between ON and OFF: control is interrupted, the expansion valve is closed (0%), and only
the probe fault alarms remain active. ON status (normal operation) resumes after the time CLt has elapsed, after switching off
(OFF status) or when the controller is restarted.
Code Description Def Min Max UOM User User terminal
DIn Assign clean mode switch digital input
- see DIA
0-15- SNO
CLt Max time for clean status 0 0 999 min U NO
The meaning of each status, OFF, ON, standby and clean, is summarised in the following table:
Unit OFF Unit ON Standby Clean
Control OFF ON OFF OFF
Light independent independent independent independent
Probe alarms enabled enabled enabled enabled
Other alarms disabled enabled enabled disabled
User terminal OFF based on /t1 Stb CLn
Tab. 5.f
Change working set (par. DIo)
In this case, it is possible to choose between configuration 1 (digital input not active) and configuration 2 (digital input active).
The changeover between sets occurs during the transition in status.
Caution:
when changing sets, the default parameters for the chosen configuration are loaded into the memory, and any
settings made by the user will be overwritten.
Notice: use the configuration software to set the two default configurations. (see “Installation”).
Code Description Def Min Max UOM User User terminal
DIo Assign working parameter set change digital input - see DIA 0 -1 5 - S NO
Door switch without stopping control (par. DIP)
Operating mode that allows the door to be opened without stopping control. In this case, when opening the door, only the light
will switch on. This operating mode can be configured by setting parameter DIP with one of the digital inputs. Opening the door
introduces a temperature alarm delay as described for the door switch function (par. DIE).
Code Description Def Min Max UOM User User terminal
DIP Assign door switch without control stop digital input - see DIA 0 -1 5 - S NO
Start/stop defrost from digital input (par. DIr)
If configured in this new mode, a digital input can be used to start a defrost when closing and end the defrost when opening
(independently of par. d0). If the defrost ends after the maximum time (par.dP1), alarm Ed1 is activated if enabled (r3 = 1).
Code Description Def Min Max UOM User User terminal
DIr Assign defrost according to DI status digital input - see DIA 0 -1 5 - S NO
dP1 Maximum defrost duration 45 1 240 min S YES
r3 End defrost by timeout signal
0/1 = disabled/enabled
001- SNO
Enable alternative superheat set point
The superheat set point value can be modified via a digital signal.
If DIV is activated, the superheat set point switches to the value of P3A and the alarm threshold value to P7d.
Code Description Def Min Max UOM User User terminal
DIV Assign digital input to enable alternative superheat set point 0 -1 5 - S NO
P3A Alternative superheat set point 45 1 240 min S YES
P7d Alternative low superheat alarm thresholds 001- SNO
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