Table 5-14 Hvps Hv Overvoltage Led Lights Red - ferrotec Temescal CV-6SLX User Manual

5.4 Troubleshooting Procedures
Before performing the following procedure, perform the procedure described in
section 5.4.1.
Condition indicated: HV Output Voltage Is Above Maxiumum (i.e., 105% of Setpoint)
Symptoms
TCS displays PSU1_FAIL_ALM (= Power Supply Control Is On failure alarm)
•
HVPS Front Panel: HV OVERVOLTAGE 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 #9.
Possible Cause
1. Incorrect or fluctuating line voltage
2. Faulty or loose cable connections.
3. Emitter damaged
4. System improperly grounded for HV.
If preceding steps have failed to correct the fault, perform the following procedure:
1. Switch off the power supply.
2. Disconnect HV output cable from HVPS J1.
3. 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.
4. 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. Broken or shorted emitter.
Fault condition(s) whose investigation
6.
requires removal of HVPS top cover.
CV-6SLX User Manual
DANGER: HIGH VOLTAGE

Table 5-14 HVPS HV OVERVOLTAGE LED Lights Red

1. Confirm input line voltage
2. Make sure that all power module and FPS cable connections are correctly and
securely made.
3. Follow instructions in gun manual to troubleshoot emitter issues.
4. Make sure that grounding instructions in e-gun manual have been correctly
implemented.
5. Check emitter for breaks and check emitter assembly and associated leads
for possible grounds.
6. Contact Temescal Field Service.
Procedure
CAUTION
Procedure
5-24
Section 5: Troubleshooting
0101-8242-0, Rev. C