Ransburg 9060 LV Auto Cascade 80120-XXX - Manual (Page 45)

9060 Cascade Low Voltage Controller - Operation
CP-13-02.2 40
Figure 33: 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 or external cascade. If
this fault occurs, reset the fault. This fault can
be caused by a broken ground path between
the high voltage section and the pc board. In
external cascade applications, a failed low
voltage cable can cause this problem. Check
the wiring to the high voltage section. For
more information, refer to Fault Troubleshoot-
ing Section.
Figure 34: Ground Fault Display
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.
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, and re-test. If still a problem, re-
place the pc board. See Fault Troubleshooting
Section for more information.
Figure 35: Overload Fault Display
Figure 36: Current Limit Fault Display
Voltage Cable Fault (UC)
This fault will occur if the microprocessor de-
tects a loss of the voltage feedback signal.
This can be caused by a failed high voltage
cable, a failed high voltage section, or a failed
pc board. Replace the high voltage cable and
re-test. If still faulty, replace the high voltage
section or pc board and re-test.