Current Limit Fault (CL)
This fault occurs if the output current exceeds the maxi-
mum current by 20µA. This fault can be caused by ex-
cessive overspray on the applicator or a paint formulation
that is too conductive. 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 Sec-
tion for more information.
Figure 13: Current Limit Fault Display
Voltage Cable Fault (UC)
This fault will occur if the microprocessor detects 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.
Figure 14: Voltage Cable Fault Display
Feedback Fault (FF)
This fault will occur if the microprocessor detects a loss of
the current feedback signal. If this occurs, reset the fault.
If this fault occurs repeatedly, refer to the Fault Trouble-
shooting Section to determine if the problem is with the
high voltage section or the main pc board.
Figure 16: Feedback Fault Display
Figure 15: Over Voltage Fault Display
Over Voltage Fault (OU)
This fault will occur if the microprocessor detects the unit is
trying to output voltage above the required for the specific
applicator type. If this occurs, reset the Controller. If this
fault continues to occur, replace the main PC board.
CURRENT LIMIT FAULT ILLUMINATES FAULT
INDICATOR AND DISPLAYS “CL”
VOLTAGE CABLE FAULT ILLUMINATES FAULT
INDICATOR AND DISPLAYS “UC”
OVERVOLTAGE FAULT ILLUMINATES FAULT
INDICATOR AND DISPLAYS “OU”
FEEDBACK FAULT ILLUMINATES FAULT
INDICATOR AND DISPLAYS “FF”
CP-13-03-R4 (05/2020)
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