4.5 - GREEN MACHINE
™
- North America - Installation, Operation, Maintenance, & Troubleshooting Manual
Chapter 11: Operator Training Guide
Page 207
Overfill Alarm, continued…
•
An overfill might happen if the delivery person fails to stop fueling, ignoring both the overfill limit
and the high-product limit.
•
VST has determined that overfill protection is needed to reduce the chance of gasoline
entering the GREEN MACHINE.
•
Below are the precautionary measures taken to protect the GREEN MACHINE against an overfill
situation:
•
The VST Control Panel will disable the GREEN MACHINE when the UST level reaches the
OVERFILL Alarm setting (OVERFILL LIMIT: 90%) when the relay contacts close at the Fuel
Management System.
•
Eventually, as fuel is dispensed, the product would drop below the
OVERFILL Alarm threshold thereby resetting the relay and re-enabling the GREEN
MACHINE.
•
The Fuel Management System OVERFILL Alarm will not guarantee that the GREEN
MACHINE is protected from gasoline entering into it.
•
The GREEN MACHINE will not operate during this alarm.
11.3.6
SD Card Alarm
•
The GREEN MACHINE will operate when there is a SD Card Alarm.
•
The SD Card Alarm will activate when the following items occur:
•
An SD Card in not installed in the PLC.
•
The SD Card write protection is ON.
•
When the SD Card is not inserted in to the slot properly.
•
The card cannot record the data while there is an SD Card Alarm.
•
After the Card is installed, the fault will clear and Alarm will show Green.
•
The GREEN MACHINE will operate during this alarm.
