AMS SENSIT 3 GLASS FRONT VENDOR
L0086, Rev. G
6-5
display for 15 minutes. The customer can add to
this credit to purchase additional items.
6.8.1.5 Multi-Vend
The factory default is “
N
” for no. If set to
“
Y
”, the merchandiser will hold the change
following a vend. The customer can make
additional purchases with the remaining credit.
The customer may push the coin return button at
any time to refund this credit.
6.8.1.6 Lev2 Coin Mech
The factory default is “
N
” for no. If set to
“
Y
”, the merchandiser will treat the coin
mechanism as a level 2 device. Merchandiser
must be powered down before change will take
effect. AMS recommends that this option remain
as “N” for no.
6.8.1.7 Instant
Reval
Adds value to card immediately when cash
is inserted.
BILL AND CASH-LESS APPLICATIONS
Sensit 3 software allows running the
merchandiser with no coin mech.
The changes to allow bill-only and bill and
cashless applications affect fundamental MDB
behavior of the VMC. It was decided to make
these changes without introducing new layers of
option settings. The typical customer using a
coin-based system should not notice any changes
except under unusual conditions. This section will
explain those changes and unusual conditions.
To simplify the discussion, the term
“healthy” will be used to describe a peripheral
(coin mech, bill validator, or a cashless device)
which is present, which is communicating normally
to the VMC, and which has no fatal out-of-service
conditions.
MDB OUT-OF-SERVICE
Previously, the VMC would go out-of-
service if what it determined a “critical” peripheral
became unhealthy. In a coin-based system, the
coin mech was the critical peripheral. In a
cashless-only system, the card reader was the
critical peripheral. Bill-only applications were not
supported, so an unhealthy validator was never
sufficient to take the machine out-of-service.
In this firmware, the machine will only go
out-of-service if at first at least one peripheral
becomes healthy, then all peripherals become
unhealthy.
REMAINING IN SERVICE W/O COIN MECH
If a bill validator is present, and the coin
mech becomes unhealthy, the VMC will now
continue running with the validator (and cashless if
present). Over the past several years, the criteria
for an “unhealthy” finding have become more
stringent, as various reported error conditions
such as coin jams were removed from out-of-
service consideration. Right now, in practical
terms, the coin mech either has to burn out
completely or become disconnected to be
considered unhealthy by the VMC’s criteria. A
healthy coin mech going unhealthy should be a
rather rare occurrence.
To help notify patrons and service
personnel that the coin mech has become
unhealthy, the EXACT CHANGE message will be
activated. This should discourage patrons from
inserting paper money, unless the prices happen
to be in paper money increments. Also, patrons
trying to feed coins into the mech will notice
immediately that the coins disappear (in the case
of a serious coin jam) or fall through.
‘#’ KEY FOR ESCROW RETURN
In bill-only applications, there is no classic
coin return button to request return of the last-
inserted bill. As a result, when the coin mech is
considered unhealthy, the ‘#’ key will be treated as
equivalent to a coin mech escrow return.
BILL-ONLY APPLICATION NOTES:
In a bill-only system, prices must be
restricted to the scaling factor of the bill validator.
Usually, this scaling factor will start from the
smallest paper currency unit instead of the
smallest coin unit. This will limit setting selection
prices that would require change-making.
Due to the absence of a coin mech, the
normal No Cheat logic is disabled, regardless of
the VMC option setting. The VMC’s fairness is
limited to not taking in more money than the
maximum price in the machine. As mentioned
earlier, the ‘#’ key is equivalent to escrow return,
possibly allowing the patron to retrieve the last-
inserted bill.
The EXACT CHANGE message should
never occur in a pure bill-only system.
BILL PLUS CASHLESS APPLICATION NOTES
Prices will be restricted to the scaling factor
of the cashless device, which is usually the
smallest coin unit.
Revaluation occurs in the same way it does
with a coin mech, except in cases where the
payment medium is at or near its maximum
balance. With a coin mech, the VMC will allow
credit to exceed the maximum balance as long as
any excess can be paid back in coins. Without a
coin mech, the VMC rejects any bills that would
exceed the maximum balance (in a card-first
revaluation) or rejects the payment medium
entirely (in a cash-first revaluation).
6.8.1.8. Hide Card Value
Use this feature to display or not display
the value on the card.
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