5.4 Brewing cycle sequence
Requirements:
► Appliance is switched on and “Ready” is displayed.
Press “Large coffee” or “Small coffee” button for no longer than 3 sec.
Sequence of
Check that ledge motor and spindle motor are in the correct position.
Brewing cycle:
Ledge motor starts – capsule infeed moves in.
Capsule infeed has reached its inner stop position when the "capsule infeed at rear" reed switch is closed and the
voltage on the ledge motor increases.
Ledge motor stops.
Ledge motor starts and moves the capsule infeed back to the home position.
Capsule infeed has reached its home position when the “capsule infeed at front” reed switch is closed and the
voltage on the ledge motor increases.
0.5 s delay. Ledge motor runs further towards the home position to ensure that both doors are 100% closed.
Ledge motor stops.
Spindle motor starts and moves the capsule cage into the brewing position.
Spindle motor is actuated a second time for approx. 1 sec. in order to strengthen the seat of the capsule cage seal.
Pump is actuated, all buttons are locked for approx. 5 sec.
Brewing cycle starts. The pump is actuated and conveys water out of the water tank through the flowmeter into the
heater and then to the capsule cage via the ceramic valve.
When the flow rate stored in the EEPROM is reached, the pump stops.
4 sec. delay in brewing position. If a “brew” button is pressed during this time, the brewing cycle starts a second
time with the same capsule at the same flow rate.
Spindle motor starts and raises the capsule cage by approx. 8–9 mm.
In this position the motor stops for approx. 1 sec.
Spindle motor starts and moves the capsule cage into the ejection position.
In this position the motor stops for approx. 0.5 sec.
Spindle motor starts and moves further towards the home position.
Appliance is in brewing mode again. “Ready” is displayed.
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