4. The cup level is monitored by an electronic system. An infrared LED (cup sensor
transmitter) is positioned in the cup assembly above the cup ring, with an infrared
detector (cup sensor receiver) mounted directly opposite.
5. 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 stack is located. A turret location micro-switch ensures that the cup
tubes stop centrally over the cup ring.
Note: The turret motor will run until the next stack is deposited into the cup
ring, which 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 tubes have been checked.
6. 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 machine will display the Out of Cups message.
Note: An illustration showing the parts breakdown for the Cup Drop Unit is
included in Section 12 - page 107.
7.6 Waste Level Probes
1. The waste level probes, fitted to the underside of the machine, detect the water
level in the waste tray.
2. The system consists of two springs set at different levels. When the water level
is high enough that both of the springs are immersed in the water a message is
displayed on the machine saying the waste tray is full and the machine is disabled.
Note: The springs are set at two different levels in order to lessen the chance
that movement of water in the drip tray could accidentally disable the machine.
7.7 CoEx® Brewer
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 initialize operations, indicating its
position. Please refer to Section 8 for full details of the CoEx® brewer and its
operation.
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Technical Manual