Coffee Cycle Operating Diagram - Saeco Syntia Service Manual

SYNTIA
4.3.

Coffee cycle operating diagram

Main switch ON
Time
Coffee grinder
Heating
Pump
Brewing unit gear
motor
Status
Notes: * Only with Pre-brewing
MS status
When the machine is switched on, the gear motor repositions itself as follows:
- It acts on microswitch 1 (see following. section)
- The gear motor changes its rotation direction and moves upwards again by approx. 1-2 mm
- The boiler begins to heat water for approx. 45 seconds. It absorbs all the available heating
power in order to reach the optimal temperature. The temperature will then remain at a constant
level.
1. The coffee grinder starts the grinding process (controlled by pulses generated by a sensor)
2. The gear motor (brewing unit) moves to the dispensing position
3. Preliminary dispensing phase (short pump activity, short pause)
4. Product dispensing (the pump operation period is defi ned by the amount of product dispensed)
5. The gear motor moves to its home position (the dregs are expelled automatically)
Saeco International Group
START
approx.
45 secs.
Heating Ready
OFF
Single microswitch gear motor
Switching on
Coffee cycle
Pulses
(Dosage)
*
Coffee cycle
ON
04 OPERATING LOGIC
STOP
Pump activity
(turbine pulses)
depending on the
product quantity
selected
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