Dose Self-Learning (Sas) 120-127V - Philips 5000 Service Manual

PHI 5000

3.9. Dose self-learning (SAS) 120-127V

The aim of this function is to automatically regulate the average dose of ground coffee (SELF-LEARNING);
this takes place with an algorithm based on the following values and setting by the user:
1. Number of coffee grinder pulses during the grinding cycle.
2. Max. average value of the power consumed by the gear motor during the coffee brewing cycle.
3. Aroma selected by the user.
The algorithm compares the maximum average value of the power consumed by the gear motor with the
value listed in the table for the selected aroma, in order to calculate the new grinding pulse value for the next
coffee produced.
If the power consumption value is less than the minimum current value, the grinding pulses will be in-
creased by 2.
If the power consumption value is greater than the maximum current value, the grinding pulses will be de-
creased by 4.
If the power consumption value falls within the "over-torque" interval, the product will be dispensed and the
grinding pulses will be decreased by 10.
If the power consumption value falls within the "abort cycle" interval, the dreg will be expelled and the
grinding pulses will be decreased by 10.
If the "pre-ground" flavour is selected by the user, no modification will be made.
This guarantees that, regardless of the coffee type used, the grinding level setting and the wear on the
grinders, the ground coffee dose always remains constant.
3 levels
A
Light
Aroma
B
of the
Med
grinded
product
C
Strong
Important:
For perfect operation, machine adjustment should take place in the area of the fields highlighted in green
(A, B, C). When the type or brand of coffee is changed, there may be variations in the size of the beans
and their stickiness or roasting level. This leads to variations in power consumption (mA), with resulting
excessive or insufficient doses (until the necessary adjustments have been made to compensate for this
change).
Caution: In the case of excessive dosage, powder may be expelled into the dreg drawer. This is not a fault, but
can occur during preliminary operation or after a service.
DOSE ADJUSTMENT (NUMBER OF GRINDER IMPULSES)
5 levels +2
MAX_CURRENT_mA
Very Light <150mA
Light
MAX_CURRENT_mA
<250mA
Med
Strong
MAX_CURRENT_mA
<350mA
Very Strong
TO APPLY TO MED AROMA
0 -4
<=150mA
MAX_CURRENT_mA
MAX_CURRENT_mA
>250mA
<=250mA
<=250mA
MAX_CURRENT_mA
MAX_CURRENT_mA
>350mA
<=350mA
<=350mA
MAX_CURRENT_mA
MAX_CURRENT_mA
>500mA
<=500mA
03 OPERATING LOGIC
-10 and
-10 CYCLE
ABORTED
MAX_CURRENT_mA MAX_CURRENT_mA
>800mA >1000mA
MAX_CURRENT_mA MAX_CURRENT_mA
>800mA >1000mA
MAX_CURRENT_mA MAX_CURRENT_mA
>800mA >1000mA
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