68 04-2017 5325 00
ACTIVATION BOARD
This board activates the electrical devices
and directly activates the DC motors via re-
lays. It manages the signals originating from
the cams and/or microswitches on the vari-
ous electrical devices. Furthermore, it con-
trols the heating unit management board.
The board works with 24 V AC for the elec-
tronic parts and the payment systems.
The board management software is loaded
directly, (through RS232) on the micropro-
cessor.
-The green LED 6 (23) flashes when the
board is working normally.
-The yellow LED 7 (25) indicates the pres-
ence of 5 V DC.
-The red LED 8 (12) is lit when the board is
being reset.
-The red LED 4 (17) indicates the operating
status of the espresso heating unit heating
element.
-The red LED 5 (18) not used on these
models, indicates the operating status of
the instant drinks heating unit heating ele-
ment.
-The green LED 1 (26) indicates the flow
meter pulses.
-The green LED 2 (1) indicates 34 V DC.
-The green LED 3 (4) indicates regulated
34 V DC.
RL1: EEA, PM water tank
RL2: MAC
RL3: MSB
RL4: MSCB
RL5: Not used
RL6: PM heating unit
RL7: ESC
RL1
RL2
RL3
RL4
RL5
RL6
RL7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26
27
28 29
Fig. 48
1. LED 2
2. (J1) 24 V AC power supply
3. (J15) DC actuators
4. LED 3
5. (J13) Solenoid valves - motor mixers (EV-MF)
6. Not installed
7. (JP2) CAN Bus jumper closed
8. (J12) MD motor-dosers
9. (J15) CAN Bus
10. (J4) Expansion card connection (optional)
11. (J3) To the CPU board
12. LED 8
13. (J6) Board programming
14. (J10) Relay-activated actuators
15. (JP1) closed jumper
16. (J14) Brewing unit motor (ES model)
17. LED 4
18. LED 5
19. (J16) On the relay board (if present)
20. Not used
21. (J7) Not used
22. (J11) Not used
23. LED 6
24. (J8) input signals
25. LED 7
26. LED 1
27. (J9) input signals
28. (J17) Heating unit board and probe
29. (J2) Not used
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