Carel MPXone - Page 34

34
ENG
mpxone +0300086EN rel. 2.2 - 13.11.2023
Commissioning
/Fd: Assign tGS (superheated gas temperature probe)
This is used to assign the measurement of the superheated gas temperature at the evaporator outlet to the selected probe.
Code Description Def Min Max UOM User User terminal
/Fd Assign superheated gas temperature probe (tGS)
Val. Desc. Val. Desc.
0 Function disabled 7 Probe S7
1 Probe S1 8 Probe S8
2 Probe S2 -1 Serial probe S11
3 Probe S3 -2 Serial probe S12
4 Probe S4 -3 Serial probe S13
5 Probe S5 -4 Serial probe S14
6 Probe S6
0 -4 8* - S YES
Notice: the maximum value that can be set for /Fd depends on the version used (Medium: 6, Advanced: 8).
/FE: Assign PEu/tEu (saturated evaporation pressure/temperature probe)
This is used to assign the measurement of the saturated evaporation pressure/temperature to the selected probe. It is recom-
mended to connect the 0.5-4.5 Vdc ratiometric probe (CAREL standard ratiometric) to input S6.
Code Description Def Min Max UOM User User terminal
/FE Assign saturated evaporation pressure/temperature probe
(PEu/tEu) - see /FA
0 -4 8* - S YES
Notice: the maximum value that can be set for /Fd depends on the version used (Medium: 6, Advanced: 8).
/UE, /LE: Maximum / minimum value of probe PEu
Parameters /UE and /LE are used to define the maximum and minimum limits of the range of measurement for probe PEu.
Code Description Def Min Max UOM User User terminal
/UE Maximum saturated evaporation pressure probe reading (PEu/tEu) 9.3 /LE 200 bars M NO
/LE Minimum value for saturated evaporation pressure probe (PEu/tEu) -1 -1 /UE bars M NO
4.4 Checks after commissioning
Once having completed the installation, configuration and programming operations, after commissioning the controller check
that:
• the programming logic is suitable to control the unit and the system in question;
• the time has been set on the controller;
• the day/night time bands have been set correctly;
• the standard display has been set on the user terminal and remote display;
• the appropriate unit of measure has been set for the temperature probes (°C or °F);
• the passwords have been changed to avoid unwanted parameter settings;
• the label on the cover of each controller shows:
• serial address;
• whether main or secondary
• the number of secondary devices featured on the Fieldbus line;
• any notes.
Caution:
at the end of the commissioning procedure, the alarm log can be reset via the APPLICA app. See “Alarms”.