Troubleshooting Guide - Ransburg MICROPAK A11789 Service Manual

TROUBLESHOOTING GUIDE

W A R N I N G W A R N I N G
W A R N I N G W A R N I N G W A R N I N G
! ! ! ! !
The "Troubleshooting Guide" below
>
requires measurement of potentials that
can cause serious bodily injury if proper
measuring procedures are not followed.
For this reason, proper troubleshooting
should ONLY ONLY be conducted by qualified ONLY ONLY ONLY
electronics technicians using specific test
equipment.
General Problem General Problem General Problem General Problem General Problem
MicroPak Power MicroPak Power MicroPak Power MicroPak Power MicroPak Power
Indicator and Indicator and Indicator and Indicator and Indicator and
Meters do not light Meters do not light
Meters do not light Meters do not light Meters do not light
up when MicroPak up when MicroPak up when MicroPak up when MicroPak up when MicroPak
ON/OFF Switch is ON/OFF Switch is ON/OFF Switch is
ON/OFF Switch is ON/OFF Switch is
turned ON turned ON turned ON turned ON turned ON
No or Low kV Output No or Low kV Output
No or Low kV Output No or Low kV Output No or Low kV Output
at Spray Gun when at Spray Gun when at Spray Gun when at Spray Gun when at Spray Gun when
HV ON Indicator (red HV ON Indicator (red HV ON Indicator (red
HV ON Indicator (red HV ON Indicator (red
LED) is Lit LED) is Lit
LED) is Lit LED) is Lit LED) is Lit
(Continued On Next Page) (Continued On Next Page)
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CP-06-01
Possible Causes Possible Causes Possible Causes Possible Causes Possible Causes
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
voltage cable.
4. Loose or broken wire in power
supply.
MicroPak Controller - Maintenance
Corrective Action Corrective Action Corrective Action Corrective Action Corrective Action
1. Turn AC Power ON/OFF Switch on.
2. Ensure voltage across terminals L1 and N of
terminal block 1TB is between 90 and 264 VAC.
3. Check fuse and replace if defective (see Figure 9).
4. Voltage across terminals 1 and 8 of connector
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 integrity. Repair
wiring as needed.
2 0 2 0 2 0 2 0 2 0