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ams machine question


matthew0582

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If you have a model 1 or an early model 2 this is normal as the motors have no home switches so the board has no way of knowing how the motor is positioned.

 

The late 2 and all 3 have switches on the motors and there is a set of software options that you can set to home the motor.

 

This is the thing I dislike most about the early AMS machines at whenever I walk up to one at least 1 of the 40 products is positioned so it can easy to shake out of the spiral and into the bin.

 

Walta

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The machine with no switches the board runs the motor until a product fall and breaks the beam in the bin. If the beam is not broken in X number of seconds the credit left on the machine and the customer is prompted to “Make Another Selection” if a selection fails 3 times it is locked out until the door is opened and closed.

 

Walta

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From the Sensit 3 manual.

 

3 - Motor Type 

Motor Type allows the user to change the motor-stop 

and credit deduction behavior. See the ‘Motor Types’ 

table below for more details on the various settings 

available under this function. 

Enter tray – enter tray number to change motor type. 

Press 1 to change motor type. 

Press # to save and exit. 

Press 2 to save entire vendor to this 

motor type. 

Note: All motors on a tray must be of the same 

design (S2 or S3), but trays with different motor types 

can be used in the same vendor. 

 

Motor Type Descriptions

 

HomeSensor/ will make one full turn and stop at 

home position. If a drop was detected, credit will be 

accepted. If no drop detected, “Please Make Another 

Selection” will scroll allowing the customer to try that 

or another selection- or press coin return. 

 

Sensit 

This setting ignores the Motor’s home switch (if 

present) completely. When the product is detected 

the motor is stopped and the vend cycle is complete. 

 

HomeSensor +/ 

This is similar to HomeSensor/, except that if no drop 

is detected the motor will make 2 short jogs in an 

effort to dislodge the product. If the motor stops off 

the home position, the next vend will begin the 

process again: it will stop at home and if a drop is 

detected the vend cycle is complete. If not, try up to 

two jogs. This is similar to the original Sensit 

sequence, and is the factory default setting for all 

vendors.

 

Home_Only/ 

This setting disregards the Sensit system, and will 

make one complete turn and take credit- whether a 

drop is detected or not. 

Auto Sensor Recovery is an improvement to the 

AMS Sensit system, that allows certain vends even 

when the sensor system is blocked or malfunctioning. 

If Motor Type is set to Home/Sensor/3 or Home 

Sensor+/3, and the sensor system is inoperable, the 

control will automatically switch to Home_Only/3 and 

allow a vend. Simply put, the sensors will be ignored, 

the helix will make a full turn and the credit value will 

be deducted. Once the error is cleared, the vendor 

will return to its original sensor setting. Note that this 

will only work with the 23007 and 23007-01 motors, 

and during this temporary mode, selecting an item 

with the older style motor will read “selection 

unavailable”. 
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AMS machines have a drop sensor-driven guaranteed vend system called Sensit. There have been 3 versions and the original Sensit system works as so: When a product drops and breaks the infrared beam across the top of the delivery bin, the machines sees that, cancels the credit and stops the running motor at that very time. This often leaves the spiral in a position that could lead to the next product close to also falling. There isn't any way to avoid this as it is the design of the system. You also cannot disable the Sensit system.

The Sensit 3 system gives you 3 options to set the system to: HomeSensor/ will run the motor one full revolution to the home position. If the item isn't detected then the credit remains and the customer gets a message to Make Another Selection, allowing them to make the same selection again or a different one. The next option is HomeSensor/+ which makes a full turn until reaching home and if the product didn't fall it will jog the motor 2 times to free the item. This ends the vend and might leave the motor off home. The next vend will run in the same way. This the same as the original Sensit system. The third option is Home_Only/ which will ignore the Sensit 3 system and run every motor to home and cancel the credit, regardless of whether a product was vended.

The Sensit2 system may work in the same way as the Sensit1 but it has improved sensors and a different logic board and a 2 line credit display.

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