Gasboy Fuel Truck Controller User Manual
Page 40
Fuel Truck Controller Manual
34
Truck Controller is turned on 30 seconds after the truck is powered, when the motor should be
operating steadily.
Fuel Truck Controller does not include a power switch.
Figure 2-2 Power Supply – Block Diagram
2
2
-
-
6
6
.
.
G
G
R
R
O
O
U
U
N
N
D
D
I
I
N
N
G
G
A
A
N
N
D
D
S
S
H
H
I
I
E
E
L
L
D
D
I
I
N
N
G
G
Proper system grounding is an extremely important part of the system installation. As with the DC
power, the grounds for all system components should return to the same circuit breaker panel. This
helps you assure a common ground throughout the system, necessary for protection of the RS-485
data loop circuitry.
The Fuel Truck Controller box is shielded through its installation screws to the vehicle chassis.
Fuel Truck Controller includes several grounding studs in order to comply with requirements. The
DC power ground wire should be attached to the stud close to the Line Filter.
Each shielded cable connected to the Fuel Truck Controller is stripped of its shielding at the box
entry. Its shield wires are bundled together at the entrance of the box and attached to a shielding
stud within the Fuel Truck Controller box. Figure 2-3 shows a functional diagram of the shielding.
Figure 2-3 Cables Shielding