Ransburg MicroPak LECU5004 - Manual (Page 32)

MicroPak - Maintenance
Ransburg
29 LN-9218-00.13
MAINTENANCE
TROUBLESHOOTING
The Ohm Meter Measurements for HP404, RP404,
HP505 Cascades and RansPak 1000 Cascade
charts are shown in the “Maintenance” section
(see Figures 8 and 9) and will assist in making
Ohm meter measurements through the low voltage
cable for troubleshooting. Note that one table is
for the HP404, RP404, HP505 cascades and
one is for the RansPak 1000 cascade. Also note
that measurements should be taken with the low
voltage cable terminal strip disconnected from
the motherboard.
Troubleshooting Di/dt Faults
Areas to investigate for cause:
• Dirty atomizer interior or exterior
• Conductive solvent residue on atomizer assembly
• Moisture is inside or outside of atomizer body,
causing continuity or partial continuity back to
ground.
• Moisture inside or outside of air lines back to
ground. (High humidity)
• Loose high voltage connections or defective
high voltage cable.
• Loose ground connections or defective ground
connections/wire on atomizer holder or mecha-
nism.
• Dump lines not clean or dry leading back to
ground.
• Target not grounded and causing arcing to ground
from target.
• Di/dt SLP set too sensitive for the application
conditions.
• 24 or 28 VDC DC Power Supply to the Micro-
Pak is unstable.
- Excessive robot tip speed near neighboring parts