LeeBoy 6150 - Plus +1 Controller

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LeeBoy 6150 Conveyor Paver 5-49
Maintenance
Check ECU Powering Up
Each engine has a power distribution block (PDB) on
the main engine harness that provides power to the ECU
through the ECU control relay; main relay; and fuses in
Positions 1, 2, 3, 4 and 8. (Figure 5-50)
1
2
3
4
8
Figure 5-50. Power Distribution Box (PDB)
To check the ECU powering up:
1. Locate the PDB on the right side of the paver inside
the engine access door.
2. Fuses can be checked by removing the fuse and
using a continuity tester OR checking for +12VDC on
each pin on the back of the fuse.
3. Conrm operation of ECU and main relays:
• If the ECU relay is not energizing, starter will not
operate.
• If the main relay is not energizing, the fuel pump
will not operate.
If none of these procedures correct the problem,
contact your authorized LeeBoy dealer for assistance.
Plus +1® Controller
The Plus +1 system is a 50-pin controller that monitors
paver control systems and alerts the operator in the
event of a fault. The Plus One status light on the control
panel (Figure 5-51) illuminates green and blinks
continuously or blinks, then pauses, then blinks again,
depending upon the fault or mode. Some fault codes
will also display on the PV480 digital controller. (See
code tables on the following page.) Optimization and
calibration procedures are described on Pages 5-50 to
5-52.
Plus One Light
Figure 5-51. Plus One Light
When the key is turned on, the status light illuminates
approximately three seconds while the Plus One
controller powers up, then turns off when the machine is
ready to start.
• The light will stay on and the Plus One will not allow the
engine to start if any joystick is out of neutral or more
than one Run/Stop switch is in the RUN position.
If the joystick(s) is in the forward position and the Run/
Stop switch is in the STOP position, the Plus One will
disable the control box after a set period of time. This
is a safety measure in the event the operator leaves the
station with the control box still active and the joysticks
accidentally moved. The operator must then toggle
the Run/Stop switch from RUN to STOP and back to
RUN again to regain control.
These faults will also prevent machine movement:
• Steering control box not detected.
• Joysticks not optimized.
• Pump control coil fault.
• Brake valve/pump neutral bypass coil fault.
• The fault happens in the steering control box that has
control (Run/Stop switch in the RUN position).
• The fault occurs when neither steering control box is
in control.