Table 5-13 Hvps Hv Overcurrent Led Lights Red - ferrotec Temescal CV-12SLX User Manual

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Table Of Contents

Table of Contents

Section 5: Troubleshooting

Before performing the following procedure, perform the procedure described in

section 5.4.1.

Condition indicated: HV Output current is above 636 mA

Symptoms

TCS displays PSU1_FAIL_ALM (= Power Supply Control Is On failure alarm)

•

HVPS Front Panel: HV OVERCURRENT and POWER SUPPLY FAULT LEDs are lit

•

EBC: Fault LED lit in High Voltage section of Diagnostics screen

•

For additional information about this fault mode, see Ishikawa Diagram #8.

Possible Cause

1. Incorrect or fluctuating line

voltage

2. Faulty or loose cable

connections.

3. Emitter damaged

4. System improperly grounded for

If preceding steps have failed to correct the fault, perform the following procedure:

Switch off the power supply.

Disconnect HV output cable from HVPS J1.

Switch on the power supply and the HV and leave them switched on for no more than 9 seconds, observing whether the

symptom persists during that interval.

DO NOT leave the high voltage on for more than 9 seconds with the HV cable disconnected. Doing so will

result in the emitter's filament burning out.

If the symptom is not in evidence during Step 3, troubleshoot the emitter assembly, following the instructions in the e-gun

manual. If the symptom persists during Step 3, reconnect the HV output cable to HVPS J1, switch the power supply back

on, and proceed with the troubleshooting steps described below.

Possible Cause

5. Fault conditions whose investigation

requires removal of HVPS top cover.

0101-8292-0, Rev. C

DANGER: HIGH VOLTAGE