Ransburg 9060 LV Auto Cascade 80120-XXX - Manual (Page 49)

9060 Cascade Low Voltage Controller - Maintenance
CP-13-02.2 44
Fault Description Solution
Ground Fault (GF) The Ground Fault is typically
caused by a ground connection
problem, and can create a safety
hazard. It can occur without high
voltage and will not reset. 1. Check for secure connection on both ends
of the low voltage cable and tighten if nec-
essary. Re-test for GF fault.
2. Replace low voltage cable.
3. Replace external cascade or send in for
repair.
Over-Voltage Fault
(OU) The Over Voltage Fault indicates
the output voltage exceeds the
design specifications. It typically
occurs during a high voltage trig-
ger. 1. Check connections using two finger pull
test to ensure they are connected.
2. Replace the pc board.
3. Send unit in for repair.
Over-Load Fault
(OL) The Over Load Fault indicates the
current output has exceeded the
overload threshold. This fault is
only active if jumper 17 is shorted.
The overload threshold is normally
set at 10 µA below the maximum
output of the applicator. 1. This may indicate the paint conductivity is
too high (resistance too low) or the outside
of the applicator is contaminated with paint.
Test paint for proper conductivity or clean
applicator with non-polar solvent.
Current Limit Fault
(CL) The Current Limit Fault indicates
the current output of the gun has
exceeded the maximum allowable
output current. It typically occurs
with the high voltage on. 1. This may indicate the paint conductivity is
too high (resistance too low) or the outside
of the applicator is contaminated with paint.
Test paint for proper conductivity or clean
applicator with non-polar solvent.
2. Replace applicator and re-test. If problem
still exists, replace main pc board.
3. Send applicator in for repair.
Feedback Fault
(FF) The Feedback Fault indicates
there is no current feedback or it
is incorrect. It typically occurs
with the high voltage on. 1. Send high voltage controller in for repair.