DeLonghi MAGNIFICA PLUS ECAM320 - Working Principle; Microswitches, Sensors and Solenoid Valves

Doc. Nr.: DSDL_24024_B
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5 WORKING PRINCIPLE
5.1 MICROSWITCHES, SENSORS AND SOLENOID VALVES
MICROSWITCHES
Function
Logic
M1 = UPPER MICROSWITCH
Detects when the infuser is on top
position
“NC”, it opens when the infuser is in top
position
M2 = LOWER MICROSWITCH
Detects when the infuser is on down
position
“NO”, it closes when the infuser is in
down position
M3 = DRAWER MICROSWITCH
Detects when the drip tray is in
correct position
3-pin micro switch. When the drip tray is
inserted:
- the contact for the drip tray
detection is OPEN;
- the contact for the transmission
motor power supply is CLOSED.
M4 = WATER TANK
MICROSWITCH
Detects the presence of the water
tank
3-pin micro switch. When the water tank is
inserted:
- the contact for the water tank
detection is OPEN;
- the contact for the transmission
motor power supply is CLOSED.
M5 = IFD CONNECTOR
MICROSWITCH
Detects when the IFD connector is
attached to the machine
“NO”, it closes when the IFD connector is
attached.
REED AND ENCODER
Function
Logic
REED SENSOR EMPTY WATER
TANK
Detects when the water level is at
minimum
HALL SENSOR ENCODER
Detects rotations of transmission
motor