ENGLISH
LOW VOLTAGE ANALOG INPUTS
STCAF:
boiler temperature probe input
STLVAP:
steam spout temperature probe input
SLIV:
boiler level probe input
SLIVMIN:
boiler minimum level probe input
LOW VOLTAGE OUTPUTS (low voltage)
RISCAF:
low voltage output for triac or boiler heating element static relay (PID)
RS232 SERIAL LINE (low voltage)
TxD/RxD:
signals for RS232 serial transmission (TTL)
MICROPROCESSOR PROGRAMMING LINE (low voltage)
FLASH:
signals for "on-board" programming of the Flash processor (for Gicar use)
HIGH VOLTAGE OUTPUTS (8 RELAYS)
PUMP:
Pump relay output
EV1:
group 1 supply solenoid valve relay output
EV2:
group 2 supply solenoid valve relay output
EV3:
group 3 supply solenoid valve relay output
EVLIV:
filling solenoid valve relay output
EVTEA:
tea solenoid valve relay output
ON/OFF:
general contactor (on/off) relay output or output for heating remote control switch (not PID)
EVVAP:
steam solenoid valve relay output
POWER SUPPLY (high voltage)
The doser is supplied with the rated mains voltage through the connector provided.
CONNECTIONS
see "Electrical Characteristics".
When the doser is fed by means of the external main switch, it resumes the "OFF" or "IDLE-ON" status that it presented before being
disconnected from the mains (see "Procedures in the event of a power cut").
At the time of switching on the doser, the display briefly shows the version of the software installed (x.yy).
the display shows:
OFF STATUS (DOSER OFF BUT SUPPLIED)
With doser switched off:
- all the outputs are deactivated
- all the functions are disabled, except those of Programming the TECHNICAL LEVEL
the display shows:
IDLE ON STATUS (ON)
SWITCHING ON
To switch on the doser, press the button K3GR1.
In idle-on status, the doser detects the status of the level and minimum level probes (the latter only if used);
if the probe detects lack of water in the boiler, the order is given to fill the boiler by activating the filling so-
lenoid valve EVLIV and the PUMP until the correct water level is restored (Filling time-out - see ALARMS
paragraph).
When filling is completed, heating is activated (see paragraph "boiler heating").
If correct levels are found, or after the levels have been topped up, the doser enables or programmes the
selections of coffee doses (see following paragraphs).
Enabling distribution is not subordinate to reaching set-point temperature in the boiler.
SWITCHING ON THE DOSER
3D5 DE LUXE
REV.X.YY
OFF
hh:mm
where hh:mm INDICATE the present hour and
minutes
52