Wega EMA Use And Maintenance Manual

TECHNICIANS' manual 79 of 100
12.7.16 Wiring diagram code WY18090315
OUTLET connector
Solenoid valve
Remote switch
-
Solenoid valve
GR1 solenoid valve
GR4 solenoid valve
Heating unit lling solenoid valve
GR3 solenoid valve
GR2 solenoid valve
CN14
Motor pump
Common
PUSHBUTTON PANEL connectors
CN10
GR1 pushbutton panel
CN11
GR2 pushbutton panel
CN12
GR3 pushbutton panel
CN13
GR4 pushbutton panel
RS485 connector
GND_485
B-485-EXP
A-485-EXP
+5 V
CN8
PRESSURE SWITCH connector
-
PR
GND
+VPR
CN15
NTC connector
TLA
TLB
CN16
HEATING UNIT NTC connector
TCA
TCB
CN17
CUP WARMER NTC connector
-
TSA
TSB
CN18
Neutral
POWER SUPPLY connector
-
INLET connector
Connector
TILL RS232 SERIAL connector
GND
+5 V/+12 V
TX_OUT
RX_OUT
GND
+12 V
1
4
8
7
6
5
4
3
2
1
8
9
10
7
6
5
4
3
2
1
4
3
2
1
2
1
2
1
1
4
3
2
1
4
3
2
1
3
2
1
2
1
Heating unit level probe
Heating unit safety probe
GR1 ow meter
GR2 ow meter
GR3 ow meter
GR4 ow meter
Phase
CN1
CN2
CN4
CN3
Cup warmer
CUP WARMER OUTLET connector
-
Common
CN6
DIS
-
RS232 TELEMETRY connector
GND
TX_OUT-MOD
-
RX_IN-MODBUS
CN5
18090315 - 2
BL Blue
CAB Power cable
CAL Heating unit
CN1 Power supply connector
CN2 Inlet connector
CN3 Display connector
CN4 Till serial connector
CN5 Wi-Fi telemetry connector
CN7 Bluetooth connector
CN8 RS485 connector
CN10
GR1 pushbutton panel connector
CN11 GR2 pushbutton panel connector
CN12 GR3 pushbutton panel connector
CN13 GR4 pushbutton panel connector
CN14 Outlet connector
CN15 Pressure switch connector
CN16 Steam NTC connector
CN17 Heating unit NTC connector
CN18 Cup warmer NTC connector
CT Power supply connector
CV1 GR1 volumetric counter
CV2 GR2 volumetric counter
CV3 GR3 volumetric counter
CV4 GR4 volumetric counter
EV1 GR1 solenoid valve
EV2 GR2 solenoid valve
EV3 GR3 solenoid valve
EV4 GR4 solenoid valve
EVC
Heating unit lling solenoid
valve
EVT Tea solenoid valve
EVV Steam solenoid valve
F1 Inlet fuse (6.3 A)
F2 Motor pump fuse (500 mA)
FP1(*)
Motor pump fuse
UL (OPD) fuse
FP2(*) 230 V UL (OPD) fuse
F3 Telemetry fuse (500 mA)
GR Grey
GV Yellow-green
IG Main switch
IST Cup warmer switch
JP3 Programming key connector
JP5 Tea button connector
JP10 Steam connector
JP11 Level LED connector
JP20 Cup warmer LED connector
LA Indicator light
LST Cup warmer indicator light
MA Brown
MB
Pushbutton panel membrane
MP Motor pump
MTL GSM telemetry module
NE Black
PR Pressure switch
RE Heating element
SA Safety heating element
SCT
Cup warmer heating element
SS Heating element probe
SL Heating unit level probe
TR Transformer
(
*
) Fuses for UL versions where
a plug with a capacity greater
than 30 A is installed

Wega EMA Specifications

General

Brand	Wega
Model	EMA
Category	Coffee Maker
Language	English