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5.3 Ishikawa Diagrams Section 5: Troubleshooting

CV-6SLX User Manual 5-6 0101-8242-0, Rev. C

Figure 5-10 Aux Supply Low and External Control Fault LEDs

• LED turns red when the nominal

+24 VDC control voltage drops

below +19.5 VDC

• LED lights red: (a) when fault

occurs in internal I/O switch

power, or (b) when fault occurs

in the external control circuit

via J4 pin 6

5.3 Ishikawa Diagrams

Each of the following diagrams illustrates the troubleshooting logic that applies in the case of a

given fault condition. The diagrams, in order, are:

Ishikawa Diagram #1: No Input Power ......................................................................................... 5-7

Ishikawa Diagram #2: Interlock Fault ........................................................................................... 5-7

Ishikawa Diagram #3: No Beam After HV and Gun Are Switched ON ............................................... 5-8

Ishikawa Diagram #4: HV Output Unstable ................................................................................... 5-8

Ishikawa Diagram #5:

HV Out of Regulation

LED Lights Frequently ................................................. 5-9

Ishikawa Diagram #6:

Arc/Out of Regulation

LED Lights Excessively for the Material/Application ....... 5-9

Ishikawa Diagram #7: Rail Undervoltage Fault ............................................................................ 5-10

Ishikawa Diagram #8: HV Overcurrent Fault ............................................................................... 5-10

Ishikawa Diagram #9: HV Overvoltage Fault ............................................................................... 5-11

Ishikawa Diagram #10: Setpoint Overvoltage Fault ........................................................................ 5-11

Ishikawa Diagram #11: Output Arcing Fault .................................................................................. 5-12

Ishikawa Diagram #12: Overtemperature Fault ............................................................................. 5-12

Ishikawa Diagram #13: Aux Power Supply Low Fault ..................................................................... 5-13

Ishikawa Diagram #14: External Control Fault ............................................................................... 5-13

Ishikawa Diagram #15: Filament Load Fault .................................................................................. 5-14

Ishikawa Diagram #16: Simultaneous Filament Load Fault + Filament Power Fault ........................... 5-14

Ishikawa Diagram #17: Emission Current Unstable ........................................................................ 5-15

External Control Fault LED

Aux Supply Low LED

ferrotec Temescal CV-6SLX User Manual

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