User guide

D
GB
F
E
I
Ru
19
96178-11.2014-DGbFEIRu
5| Electrical connection
ThecompressorandthetriggerunitMP10areoperationalwhentheH3LED(green)lights.
5.7 Function test of the trigger unit MP 10
Pos
Procedure
LED H1 LED H2 LED H3
red red green
1
• Interrupt power supply (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
• Interrupt power supply 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: