Planmeca Proline EC ceph, Technical Manual

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Chapter C - HELP & ERROR MESSAGES
Planmeca Proline EC X-ray unit C-7
ERROR MESSAGE EXPLANATIONS
Technical Manual
3.4 Errors 30-33 (generator errors)
Er 30 kV value does not reach given value
If the kV value remains more than 6 kV below the desired value (in service mode if kV does
not exceed 35 kV) this error is indicated.
- kV feedback cable short circuit
- Defective tubehead
- Defective generator
- Defective generator processor board
- Check operating voltages and locate fault by replacing boards
- see Er 11
Er 31 mA value does not reach given value
If the mA value remains more than 1 mA below the desired value (in service mode if mA does
not exceed 0.5 mA) this error is indicated.
- mA feedback cable short circuit
- Faulty tubehead filament power cables
- Faulty X-ray tube filament
- Power generator tube filament power supply inoperative
- Defective generator processor board
- Check operating voltages and locate fault by replacing boards
- If it appears between Er 11 and continuous Er 30, most likely defective tubehead.
Er 32 Tube filament control inoperative
If the mA value exceeds more than 1 mA the desired value during exposure this error is indi-
cated.
Error during exposure:
- mA feedback opened during exposure (try new exposure Er 32)
- Filament power supply broken during exposure (try new exposure to see if Er 33 occurs)
- Generator processor board measuring circuits broken during exposure. (Try new exposure
to see if Er 33 occurs)
Er 33 Tube filament control inoperative
After 2 seconds pre-heat period the tube filament voltage must be within 0.1V. If not, this error
is indicated.
Error in the beginning of the exposure:
- Generator operating voltage missing (mains)
- Tube filament short circuit
- Generator board filament power supply defective (likely when after Er 11)
- Check operating voltages and locate fault by replacing boards.