Ransburg 9060, Service Manual

Page: 26 / 36

9060 for No. 2 Process Handgun - Operation
21 CP-13-04.1
Figure 18: Cable Fault Display
Ground Fault (GF)
If this fault occurs, the fault indicator on the
control unit will illuminate, a GF indication will
show in the uA display. This fault will occur if
the microprocessor detects a loss of ground at
the high voltage section. If this fault occurs,
reset the fault. This fault can be caused by a
broken ground path between the applicator
and the control unit and may indicate a faulty
cable or plug assembly. It can also be caused
by a broken ground path between the high
voltage section and the pc board. Check the
wiring to the high voltage section. For more
information, refer to Fault Troubleshooting
Section.
Figure 19: Ground Fault Display
Cable Fault (CF)
This fault will occur if high voltage is active and
the microprocessor detects that no current is
being supplied to the applicator. This indicates
a connection problem from the control unit to
the cascade or handgun barrel assembly.
Typical causes include a faulty low voltage
cable, stuck pins on the plug assembly, or
contaminated contacts on the applicator. This
may also indicate a faulty barrel assembly for a
handgun. This could also indicate a connection
problem between the pc board and the high
voltage section. Check the wiring harness for
loose pins, or replace the high voltage section.
For additional information, refer to the Fault
Troubleshooting Section.
Overload Fault (OL)
This fault will occur if the overload feature is
active (see ‘Overload Activation” previously in
the “Operation” section) and the output current
exceeds the overload current value. This can
be caused by excessive overspray on the ap-
plicator or paint formulation that is too conduc-
tive. Clean the applicator, check the paint for-
mulation, or move overload jumper (JP17) to
the open position.
Figure 20: Overload Fault Display
Current Limit Fault (CL)
This fault occurs if the output current exceeds
the maximum current by 20µA. This fault can
be caused by excessive overspray on the ap-
plicator or a paint formulation that is too con-
ductive. It may also be caused by a bad pc
board. Clean the applicator, check the paint
formulation, or replace the pc board. See Fault
Troubleshooting Section for more information.