Planmeca Proline CC, Technical Manual

Page: 37 / 207

Chapter C - HELP & ERROR MESSAGES
Planmeca Proline CC panoramic x-ray C-7
Technical Manual
3.5 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 tube head
- 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 tube head 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 tube head
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.
3.6 Errors 40-43 (mechanical errors)
Er 40 Rotation remains short
At the end of the panoramic exposure the rotation end sensor must be reached. If not, this error
is indicated.
- Friction drive slipping (surfaces, motor spring)
- Inoperative sensor
- Sensor misplaced
- Check in service mode and adjust if necessary
Er 41 Rotation too long
At the end of the panoramic exposure the rotation must not go over the end sensor. If so, the
operation is stopped with this error indication.