Crane Snack Eenter I User Manual

Snack - Based Troubleshooting and Repair Guide
1670065 Page 14 of 54 September, 2002
Within one second of receiving the +24 vdc, the motor should have turned enough for
its cam to actuate the cycle switch, opening it and removing +24 vdc from the Cycle 0
Even diode on the tray connector. This removes the reverse bias from the diode,
allowing the ground to again be passed through the diode to the controller (turning the
Cycle 0 Even line back ON). If this does not occur within one second, the controller
will shut down power to the motor, turning OFF both the Row and Column drivers.
The controller then records the selection as a jammed motor, preventing any future
vends until it is repaired. If a vend is attempted for this selection, the display will tell
the customer to MAKE ANOTHER SELECTION.
Note that the Cycle 1 Odd line remains ON (grounded). This line is not normally
used during a normal (even selection) vend after the controller determined that the
motor was present. In the case where initial testing located a motor that was not
“home”, Cycle 0 Even would have been OFF, as it is now. Cycle 1 Odd in the ON
state indicates a motor is present but not “home”.
If the cycle switch opens in the allotted time as previously described, power remains
applied to the motor until it returns to the home position. (This should take no more
than four additional seconds.) The motor’s cam allows the cycle switch to close, plac-
ing +24 vdc back on the Cycle 0 Even diode. The diode is again reverse biased,
removing the ground from the Cycle 0 Even line, turning it OFF. The controller then
shuts down the Column and Row drivers, then the vend is complete. A five second
total time limit is set for a vend, and if the motor does not return home within that time
power is removed from that motor and the selection is recorded as a jammed motor.
G. Multi-Drop Bus (MDB)
1. Multi-Drop Bus (MDB) is a controller/node serial communication bus for a vending
machine which allows up to 32 devices to be connected on a single bus. A coin
mechanism, a bill validator, a card reader, and a vending machine controller
(VMC) can all be connected on one bus. The VMC is the bus master; all other
devices are nodes and provide responses or actions as instructed by the VMC.
2. The MDB capability uses a new monetary operating system which has new rules for han-
dling bills and coins. Improvements in several monetary configuration functions now uti-
lize a variable value which provides greater flexibility in machine setup. These three
functions are listed below:
a. The amount of change which is paid without a purchase.
b. The denominations to accept when the change is less than that denomination.
c. The change level when the “USE EXACT CHANGE” message will appear.
3. The MDB interface was added to the new PIE controller boards and will not be available
on any pre-PIE machines. MDB capability can be added to an existing PIE machine by
adding the MDB cable (cable P/N 1679054) and the appropriate MDB software
(EPROM).
4. DEX Overview and Capabilities
NOTE:
Availability on all Crane Snack-Based equipment.

Crane Snack Eenter I Specifications

General

Brand	Crane
Model	Snack Eenter I
Category	Vending machines
Language	English