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7.3.
Advanced Troubleshooting
WARNING:
SEVERELY DAMAGED UNIT.
CAUTION:
CERTAIN SECTIONS OF THIS POWER SOURCE.
WARNING:
DEATH ON CONTACT MAY RESULT IF PERSONNEL FAIL TO OBSERVE SAFETY
PRECAUTIONS. DO NOT TOUCH ELECTRONIC CIRCUITS WHEN POWER IS
APPLIED.
7.3.1.
Switch Off Unit
Switch off the unit with the power on/off switch on the rear panel as well as removing the
input power from the unit.
WARNING:
7.3.2.
Removing Top Cover
Remove the screws securing the top cover and remove the top cover.
7.3.3.
Initial Inspection
Perform a visual inspection of the unit and ensure all the connectors are properly mated and
there are no loose or broken wires.
7.3.4.
Connectors and Fuses Check Up
Ensure all connectors are properly mated and there are no broken wires. Check fuse F1 on
the A2 assembly and fuse F2 on the A3 assembly. Replace with the same type fuse.
7.3.5.
Power on Troubleshooting Using the LEDs
If no fuses were blown or if fuses were found blown but all the IGBT‟s checked out good and
the fuses have been replaced, reconnect power to the unit.
WARNING:
Do not touch any parts inside the unit during this test as they will be live
and dangerous. Always wear safety glasses.
RP Series
DO NOT CONNECT 400-480V TO THE UNIT, THE RESULT WILL BE A
VOLTAGES UP TO 270 VAC AND 400VDC ARE PRESENT IN
THIS EQUIPMENT GENERATES POTENTIALLY LETHAL VOLTAGES.
Wait 10 minutes for all internal capacitors to discharge.
March 2011
31
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Table of Contents
Troubleshooting
