Philips 4000 - Grinder, Coffee Cycle, and Bean Level Monitoring

PHILIPS 4000 and 3000 04 OPERATING LOGIC
4/10
4.4. Coffee grinder Philips 4000
2
3
4
5
1
The coffee grinder is driven by a direct current motor (1) using a worm screw helicoidal wheel
transmission (2).
Thewormscrew(2)drivesaplasticgearwheel(3),whichturnsthelowergrinder(4)andthe
increment pin (5)
4.4.1 Autodose system description
mA
I
0
I0 + 100
I
0 + 55
I
0 + 200
Aroma 4/5
Aroma 2/3
Aroma 1
Auto-Zero
100≤I
0 ≤300
I
0 =currentwhentheBUismovingwithoutload,i.e.withoutcoffee.Itoccurs,forexample,dur-
ing the rinsing phase of coffee spout.
Current targets:
Aroma 1 55mA
Aroma 2/3 100mA
Aroma 4/5 200mA
100 mA ≤I0 ≤ 300 mA
If the BU current is ≤ the current target the grinding time
If the BU current is ≥ the current target the grinding time