Automatic Products 310, Operating & Service Manual

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2.09
components
Control System and Boards
The MasterVend™ Control System consists of up to three different boards, depending on the configuration. All Model
120 and all Control modules consist of the LogicCenter board (LCB) and the display board. All 320 machines also
contain a Food Driver Board (FDB).
LogiCenter Board (LCB)
The LCB interfaces with the FDB (when used), display board, selector panel, MasterMenu keypad, coin mechs, bill
validators and all other peripherals. The LCB also stores all the programing and Mis information.In addition the LCB
supplies power to the FDB. (ESD sensitive)
Food Driver Board (FDB)
This board contains all the temperature monitoring functions for cabinet that it is contained in, and communicates with
the LCB via a 6 wire computer level interconnect harness. The FDB has three LEDs on it and the status of the FDB can
be determined by observing these LEDs. The three LEDs will give you the status of the communications between the
FDB and LCB, if the board is currently telling the refrigeration unit to run, and if the board is currently telling the machine
to go through a defrost cycle. (ESD sensitive)
The Food Driver Board is located on the front face of the Relay Box for the compressor assembly. This board controls the
function of all the refrigeration components along with providing the circuits for the vend motors and the baffle delivery
door. There are also two jumpers for default settings of this board.These jumpers are a set of three pins which will have
only two pins connected at any one time. The connection between the two pins is made by a small black cap, which
slides over the pins in use. The black caps are identical, and should not be removed from the board for any reason.The
two jumpers are the Cabinet selection jumper and the temperature control jumper.
Cabinet Selection Jumper
The position of this jumper identifies which cabinet is named CAB1 (Cabinet 1), or CAB2 (Cabinet 2).These are
abbreviated on the FDB board cover decal (pictured below) as C1 and C2 Cabinet 1 will contain the selections 110
through 157, and Cabinet 2 will contain the selections 210 through 257.All machines are shipped with this jumper
installed on CAB1.This jumper should be changed only if you are connecting a second cabinet to a 310 Control
Module or a 120 Snack.
Temperature Control Jumper
The second jumper on the board controls the default setting for the temperature in the event the FDB looses
communication with the LCB. This will hold the cabinet temperature at the setting indicated by the jumper. A jumper
set at “
R ” will hold the temperature at 36°F (2°C), and a jumper set at “ F ” will hold the temperature at -15°F (-26°C). If
you change the temperature in the SET TEMPS menu item, you must also change the position of the jumper to the
corresponding position.The position of this jumper can be verified through the hole in the board cover.
The Front Panel Display
The display is capable of displaying 20 alpha-numeric characters. The supported character set includes:
• Upper case alphabetic characters “A” through “Z”
• Numeric characters “0” through “9”
• Special characters: (, ), [, ], ., ‘, -, =, $, /, \, *, ^, +, , ,”, ?, _.