12
Part No. 917543 Rev. A
November 1992
3.2.
LIGHTED CASH/CREDIT INTERFACE BOARD (LIGHTED SELECT BUTTONS), continued
This board contains a four position DIP switch which must be set correctly in order for
the display to operate; the settings are as follows:
Position 1
Open or off
Position 2
Closed or on
Position 3
Open or off
Position 4
Closed or off
3.3.
SOLENOID DRIVE BOARD
The solenoid drive board primarily serves as an AC switching board. By utilizing solid
state relays it can control AC power to the pump motor relays and two stage actuator
valves. Also, the solenoid drive board enables the correct pulser assembly by switching
the pulser select (0 volt) lines. In addition, blender solenoid drive boards provide DC
power to side 1 and side 2 blend motors.
Located on the solenoid drive board is a fuse labeled F1; this fuse controls all AC voltage
supplied to the solenoid drive board. If the F1 fuse opens the dispenser will reset, but no
valves or relays will be energized.
3.4.
COMPUTER ASSEMBLY (see Figure 3-1)
The computer is a complete self-contained unit with a built in power supply and memory
retention device. It is responsible for performing the following functions:
•
Provides 5 VDC to, and monitors the return from, the handle switches.
•
Monitors the two output lines from each pulser.
•
Converts the data received from the pulsers into a volume amount.
•
Calculates the sale dollar amount based on the selected unit price.
•
Controls the solenoid drive board to switch on the correct submersible pump relays
and solenoid valves. It also switches the pulser select lines to enable the correct
pulser(s) by controlling the solenoid drive board.
•
Maintains electronic hose totals.
•
Sends sale and hose totals data to the control system via a two wire data loop.
•
Monitors all dispenser functions and, when a problem is found, generates and stores
error codes.
Summary of Contents for Vista Series
Page 1: ...SERVICE Vista Blending and Non blending Suction Pumps and Remote Dispensers...
Page 4: ...Part No 917543 Rev A November 1992...
Page 12: ...x Part No 917543 Rev A November 1992...
Page 34: ...22 Part No 917543 Rev A November 1992 FIGURE 4 1 NOZZLE BOOT ASSEMBLY WITH MICRO SWITCH...
Page 35: ...23 November 1992 Part No 917543 Rev A FIGURE 4 2 NOZZLE BOOT ASSEMBLY WITH TILT SWITCH...
Page 36: ...24 Part No 917543 Rev A November 1992...
Page 53: ...41 November 1992 Part No 917543 Rev A FIGURE 5 7 METER CUTAWAY...
Page 54: ...42 Part No 917543 Rev A November 1992 FIGURE 5 8 METER ADJUSTMENT...
Page 58: ...46 Part No 917543 Rev A November 1992...
Page 69: ...57 November 1992 Part No 917543 Rev A FIGURE 7 1 REPLACING THE DUPLEX II COMPUTER...
Page 71: ...59 November 1992 Part No 917543 Rev A FIGURE 7 2 REPLACING THE INTRINSIC SAFE BARRIER BOARD...
Page 72: ...60 Part No 917543 Rev A November 1992 FIGURE 7 3 REPLACING THE INTEGRATED DISPLAY BOARD...
Page 75: ...63 November 1992 Part No 917543 Rev A FIGURE 7 5 REPLACING THE SOLENOID DRIVE BOARD...
Page 82: ...70 Part No 917543 Rev A November 1992...
Page 84: ...72 Part No 917543 Rev A November 1992...
Page 106: ...94 Part No 917543 Rev A November 1992...
Page 110: ...98 Part No 917543 Rev A November 1992 FIGURE B 4 THE DEM IN THE SERVICE POSITION...
Page 112: ...100 Part No 917543 Rev A November 1992 FIGURE B 6 DUPLEX II COMPUTERS J3 CONNECTOR PINOUT...
Page 114: ...102 Part No 917543 Rev A November 1992 FIGURE B 8 DUPLEX II COMPUTERS J11 CONNECTOR PINOUT...
Page 115: ...103 November 1992 Part No 917543 Rev A FIGURE B 9 DUPLEX II COMPUTERS J6 CONNECTOR PINOUT...
Page 116: ...104 Part No 917543 Rev A November 1992 FIGURE B 10 DUPLEX II COMUTERS J1 CONNECTOR PINOUT...
Page 125: ...113 November 1992 Part No 917543 Rev A FIGURE B 18B 4 PRODUCT SOLENOID DRIVE BOARD...
Page 126: ...114 Part No 917543 Rev A November 1992 FIGURE B 18C BLENDER SOLENOID DRIVE BOARD...
Page 133: ...121 November 1992 Part No 917543 Rev A FIGURE B 24 MANUALLY TURNING THE PHOTOCOUPLER...
Page 139: ...127 November 1992 Part No 917543 Rev A FIGURE B 29 LIGHTED CASH CREDIT INTERFACE BOARD...
Page 144: ...132 Part No 917543 Rev A November 1992...
Page 145: ...133 November 1992 Part No 917543 Rev A APPENDIX C DISPENSER INTERNAL WIRING DIAGRAMS...
Page 146: ...134 Part No 917543 Rev A November 1992...
Page 150: ...138 Part No 917543 Rev A November 1992 1 6560 D INTERNAL WIRING DIAGRAM V390D...
Page 151: ...139 November 1992 Part No 917543 Rev A 3 6560 D INTERNAL WIRING DIAGRAM V399D...
Page 152: ...140 Part No 917543 Rev A November 1992 5 6560 D INTERNAL WIRING DIAGRAM V490D...
Page 153: ...141 November 1992 Part No 917543 Rev A 7 6560 D INTERNAL WIRING DIAGRAM V590D...
Page 154: ...142 Part No 917543 Rev A November 1992 9 6560 D INTERNAL WIRING DIAGRAM V387D...
Page 155: ...143 November 1992 Part No 917543 Rev A 11 6560 D INTERNAL WIRING DIAGRAM V390P...
Page 156: ...144 Part No 917543 Rev A November 1992 12 6560 D INTERNAL WIRING DIAGRAM V585D...
Page 157: ...145 November 1992 Part No 917543 Rev A 13 6560 D INTERNAL WIRING DIAGRAM V395D...
Page 160: ...148 Part No 917543 Rev A November 1992...
Page 162: ...150 Part No 917543 Rev A November 1992 FLOWCHART D1 PULSER FAILURE ERROR CODE XX 05 2...
