User guide

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96192-11.2014-DGbFE
5| Electrical connection
5.6 External connection of the MP 10 for terminal boxes at reduced height (Accessories)
Terminal box
PTC1
PTC2
1
2
3
4
3
4
PE
R2
X3:
Fig. 23
0,5mm²
ThecompressorandthetriggerunitMP10areoperationalwhentheH3LED(green)illuminates.
5.7 Function test of the trigger unit MP 10
Item
Procedure
LED H1 LED H2 LED H3
red red green
1
● Power supply interrupted (L1 or S1) OFF OFF OFF
● Releasethemotortemperaturesensorconnection(1or2)
● Releasethehotgastemperaturesensor(ifinstalled)(3or4)
2
● Restore the power supply (L1 or S1) ON
● Functioncheckofmotortemperaturesensor:operational ON
● Functioncheckofhotgastemperaturesensor:operational ON
3
● Power supply interrupted again (L1 or S1) OFF OFF OFF
● Reconnect terminals 1 or 2 and/or 3 or 4
4
● Restore the power supply (L1 or S1): OFF OFF ON
● MP 10 is operational again
Before start-up, troubleshooting or making changes to the control power circuit,
checkthefunctionalityofthetriggerunit: