Configuration Switch settings:
From the following descriptions of the switch functions, you will have to determine the correct position for each of
the eight switches. For the initial set-up all should be placed in the OFF position. The configuration switch
is located on the VST Fuel S-810 Motherboard (See Figure 15). Note that anytime the switch positions are
changed the RESET button will need to be pressed.
5.2 AC Power
Turn the On/Off switch inside the VST Fuel S-810 to the Off position. Turn on the breaker and measure the ac
voltage at the terminals labeled "L" and "N" on the back of the VST-Fuel 810 (TB-1). The measured
voltage should be approximately 115 Vac. (Or 230 Vac for the 230 Vac Model). Verify that the ground
terminal is connected to a low impedance ground. If the correct voltage is present, turn the Esi-Fuel 810
power switch to the on position. Put the VST Fuel S-810 into the keypad diagnostic mode as explained in
the previous section. Run the diagnostics for the display (DIAG #1) and keypad entry (DIAG #2) at this
time as a general check that the VST Fuel S-810 is functioning.
5.3 Dispensers/Pump Control
Before proceeding, verify that the jumper blocks on the pump interface boards are in the proper positions for each
board (See Figure 16). If they need to be changed, turn the power off and change the jumper blocks to the
correct positions.
For each pump interface board, place the BYPASS/NORMAL switch in the bypass position and verify that the
proper voltage is applied to the pump or dispenser. Do this one pump at a time to isolate and detect any
cross wiring. Verify that the level of voltages on the pulser circuits is approximately 10 Vdc and that the
voltage on the run circuit is 115 Vac only when the pump is authorized and the handle is in the on position.
Figure 16. Pump Interface Board Jumper Settings
VST, 2010
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