Ransburg MicroPak Controller A11789 - Manual (Page 23)

TROUBLESHOOTING GUIDE
General Problem Possible Cause Solution
> The “Troubleshooting Guide” below re-
quires measurement of potentials that can
cause serious bodily injury if proper measuring
procedures are not followed. For this reason,
proper troubleshooting should ONLY be con-
ducted by qualified electronics technicians
using specific test equipment.
W A R N I N G
!
(Continued On Next Page)
MicroPak Power
Indicator and Meters
do not light up when
MicroPak ON/OFF
Switch is turned ON
No or Low kV Output
at Spray Gun when HV
ON Indicator (red LED)
is Lit
1. AC Power ON/OFF switch on
rear of controller not turned ON.
2. Improper input line voltage.
3. Fuse of 24VDC power supply is
defective.
4. Defective 24VDC power supply.
5. Defective MicroPak Control
Unit.
1. High voltage adjust knob or kV
setpoint input not set to proper
value.
2. Local/remote switch in wrong
position.
3. Defective spray gun or low volt-
age cable.
4. Loose or broken wire in power
supply.
1. Turn AC Power ON/OFF Switch on.
2. Ensure voltage across terminals L1
and N of terminal block 1TB is be-
tween 90 and 264 VAC.
3. Check fuse and replace if defective
(see Figure 9).
4. Voltage across terminals 1 and 8 of con-
nector CON2 (see Figure 9) of 24VDC
power supply should be 24VDC. If not,
replace 24VDC power supply.
5. If none of the suggestions above
resolves the issue, replace the
LECU5004-31 MicroPak Control Unit.
1. Set high voltage adjust knob or kV set
point input to proper value.
2. Put local/remote switch in proper
position.
3. Perform a Cable Continuity Test. If
proper readings are not obtained,
check cable or spray gun for cause
(see current “Spray Gun” Service Manual).
4. Check all wiring connections for integri-
ty Repair wiring as needed.
MicroPak Controller - Maintenance
21
Ransburg
CP-06-01.1