HF Series Generators
T roubleshooting
TR-1005R4
37
6. Repeat the measurements done in point 5 for the other IGBT.
Don’t forget to remove the jumper across the DC Bus after all measurements are
made, otherwise the Inverter will suffer serious damage.
7. If any of the IGBTs are short-circuited, replace the IGBT.
8. If both IGBTs are OK, remove both shielded cable that connect the Inverter to the HV
Transformer: P1, P3 and SHLD (P2) . Isolate the three wires completely from each other and
from the metal sheet or ground. Make sure that wires are perfectly isolated and that no
short-circuit is made otherwise serious damages could be produced.
9. Set Dip-switch 3000SW2--2 in ON position at the HT Controller Board.
10. Turn ON mains and Generator.
11. Make an exposure:
G If “E09” or “Generator Overload” appear or the exposure has not been cut before 80ms,
change (if possible) the whole Inverter. If it is not possible check capacitor C9 and choke
L1 of the inverter (normally placed at the backside of the inverter). If both seem OK, c hange
both IGBTS and IPM Drivers (Do not forget to re--connect both shielded cables to the HV
Transformer (P1, P2 and P3).
G If “E09” or “Generator Overload“ does not appear and the exposure has not been cut before
80 ms, re--connect both shielded cables to the H. Voltage Transformer (P1, P2 and P3).
Follow the procedure in paragraph C (High Voltage Transformer Test).
At the end of an Exposure and right after releasing the Handswitch, error “E13” is
shown on the Console (this is normal, reset and continue
).
12. Set Dip-switch 3000SW2-2 in OFF position at the HT Controller Board. Re-connect both
shielded cables that connect the Inverter to the HV Transformer P1, P3 and SHLD (P2).
Note .
Note .
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