Crane Merchandising Systems COTI, Technical Manual

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Technical Manual 94
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3. The cup level is monitored by an electronic system. An infrared LED (cup sensor
transmitter) is positioned in the cup assembly above the cup splitter with an
infrared detector (cup sensor receiver) mounted directly opposite.
4. The light emitted by the LED is detected when NO CUPS are present. With a stack
of cups present, the beam is broken. As the cups drop below the LED transmitted
light is detected. If this is the case, the controller will index the cup tubes until a
full stack is located. A turret location micro
- switch ensures that the cup tubes stop
centrally over the cup ring.
N.B. The turret motor will run until the next stack is deposited into the cup splitter. This
breaks the LED beam and the cup stack micro switch returns to its normally open state.
The motor will run until it either finds the next stack or all the turret extrusions have
been checked. If no cups are present the “ Out of Cups Please Insert Mug ” message is
displayed on the LCD.
5. The cup stack index motor is protected by a time - out feature. The motor will rotate
for a maximum period of 60 seconds. If at the end of this period no cups have
been detected the LCD will display the
“ Out of Cups ” message.
7.7 Waste Level Probes
1. The waste level probes are positioned in the waste bucket and detect the water
level in the bucket.
2. The system consists of two probes in a moulded body. When the water level is high
enough that both of the probes are immersed in the water a message is displayed
on the LCD indicating the waste bucket is full and the machine is disabled. The
machine will remain in this state until the waste bucket has been emptied.
7.8 CoEx® Brewer (Espresso Machines)
The unique CoEx® combined coffee and espresso brewer provides both freshly brewed
coffee along with fresh coffee from beans through the same unit. The unit is driven by a
24V DC, 13 RPM motor controlled by a micro switch. The switch sends logic signals to the
controller during vend and initialise operations, indicating its position.
Please refer to Section 7 for full details of the CoEx® brewer and its operation.
7.9 Oltre Brewer
Machines may be fitted with either one or two continuous belt Oltre brewers. The
chamber, base plate, filter belt and outlet elbows are different depending on whether you
are vending leaf tea or ground coffee.
Two 24V DC 30rpm motors are used on each of these brewers, one to raise and lower the
brewer chamber the other to advance the filter belt. A cam operated micro switch signals
to the Main Controller whether the chamber is open or closed.