Table 5-18 Hvps Overtemperature Led Lights Red; Table 5-19 Fan Fails To Rotate When Hvps Is Powered Up - ferrotec Temescal CV-12SLX User Manual

Section 5: Troubleshooting
Before performing the following procedure, perform the procedure described in
section 5.4.1.
Conditions indicated: One or more of the following: IGBT temp > 678 C, heat sink Temp >778 C, fan
stopped, fan rotating too slowly
Symptoms
TCS displays PSU1_FAIL_ALM (= Power Supply Control Is On failure alarm)
•
HVPS Front Panel: OVERTEMPERATURE 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 #12 in Appendix A.
Possible Cause
1. Incorrect or fluctuating line voltage
2. Fault condition(s) whose investigation
requires removal of HVPS top cover
Before performing the following procedure, perform the procedure described in
section 5.4.3.
Symptoms
TCS displays PSU1_FAIL_ALM (= Power Supply Control Is On failure alarm)
•
HVPS Front Panel: OVERTEMPERATURE and POWER SUPPLY FAULT LEDs light red
•
EBC: Fault LED lit in High Voltage section of Diagnostics screen
•
Possible Causes
1. Fan is mechanically stuck
Fault condition(s) whose investigation
2.
requires removal of HVPS top cover
0101-8292-0, Rev. C
DANGER: HIGH VOLTAGE

Table 5-18 HVPS OVERTEMPERATURE LED lights red

1. Check input line voltage.
2. Contact Temescal Field Service.
DANGER: HIGH VOLTAGE

Table 5-19 Fan fails to rotate when HVPS is powered up

1. Check to see whether fan is clogged with dust or dirt. Excessive dust build-up
around edges of fan will prevent it from moving. Clean and blow out dust. Restart
power supply.
2. Contact Temescal Field Service
Procedure
Procedure
.
5-27
5.4 Troubleshooting Procedures
CV-12SLX User Manual