Revision 22 13.10
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VIGILANT VEND SENSOR SYSTEM
The Vigilant vend sensor system is a series of infrared sensors that send a beam of light across the delivery bin. If this
beam is broken by a product, the machine knows that an item was delivered to the customer. If this beam is not broken,
the machine assumes that nothing was vended and turns the selection spirals by ¼ turns up to 3 times. If no product is
delivered, the customer will receive their money back.
Certain products can be problematic for any vend sensing system. Products that are very thin or very small in size may,
on occasion, miss the beams. With proper loading of the machine, sensing systems are irrelevant. A comfort level is
provided to customers who walk up to the machine and know, through technology, they will not experience a “rip-off”. For
this reason, a vend sensor system is desirable – however, if you vend very small or very thin items, you may want to
consider turning off your sensing system in case of malfunction via product size. See the Service Mode section of this
manual, Advanced menu, Rows and Columns sub-menu, for instructions.
The Vigilant vend sensors, made up of the emitter (right) and detector (left) are located inside the delivery bin as shown in
Figure 17. There is a red indicator light located on the left side when viewing the bin from the inside with the door open.
This light should be lit when the system is on, indicating that there is power to the system. Blocking any of the beams
turns off the red indicator light, which means the system is working correctly.
Fig. 17 Vend Sensor System
Note: When performing Motor Tests without product loaded, it is a good idea to shut off the Vigilant system.
Red
Indicator
Light
Product
Bin
