Necta KORO Fresh Brew - Printed Board Functions and Indicator Lamps; Actuation Board

29
© by N&W GLOBAL VENDING SpA 0603 265 - 00
PRINTED BOARD FUNCTIONS
AND INDICATOR LAMPS
ACTUATION BOARD
This board, placed at the back of the machine, (see Fig. 27)
processes the information from the push-button card and
from the payment system; it also controls the actuations,
the input signals and the boiler board.
The 15 V AC voltage required for board operation is
supplied by a transformer which is protected by a 800 mAT
fuse on the primary and by a 1.25 AT fuse on the secondary
winding. The voltage supply is rectified and stabilised
directly by the board.
This board houses the Flash EPROM. The control software
of the board is installed directly (via RS232 or UpKey) in the
microprocessor.
- the red LED (7) indicates the operating status of the boiler
heating element;
- the red LED (9) for resetting the CPU glows during the
board reset;
- the green LED (11) blinking indicates that the
microprocessor is working correctly;
- the yellow LED (12) indicates the presence of 5 V DC.
Fig. 27
1 - Main switch
2 - Mains fuse
3 - Boiler control board
4 - Brewer control board
5 - Actuation/CPU board
6 - Transformer fuses
7 - Transformer
Fig. 28
1 - 120 V~ users
2 - Input signal
3 - Can-Bus connection
4 - Can-Bus connection
5 - Relay expansion connection
6 - Boiler control probe
7 - Red LED - boiler heating element
8 - Input signal
9 - Red LED
10 - Not used
11 - Green LED
12 - Yellow LED
13 - To the push-button board
14 - Connector for board programming (RS232)
15 - UpKey connector
16 - Board power supply (15Vac)
17 - Relays K1÷K16
18 - 120 V~ users
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