Planmeca Proline CC, Техническое руководство

Страница: 35 / 207

Chapter C - HELP & ERROR MESSAGES
Planmeca Proline CC panoramic x-ray C-5
Technical Manual
Er 11 Sudden kilovolt drop detected (tube arching)
kV feedback cable making bad contact
Tube arching. This is the case when an audible ‘knock’ can be heard at the same time. Quite nor-
mal but if it starts to appear more frequently, the tube head is to be suspected.
Generator stops operating when the exposure is on. More likely the generator voltage drops and
the undervoltage detector operates. Bad wiring or poor connections. Check generator voltage
while operating.
Generator or tube head defective. If this is the case the next exposures give indication ‘kV does
not rise’.
Er 12 Tube filament initializing not done
When first taken into use after tube head or generator processor replacement the tube filament
pre-heating values must be initialized. In the service mode this will be automatically done when
exposure switch is continuously pressed till operation stops. If this is not done, an attempt to
make a normal exposure will give this error indication.
3.3 Error 15 (Transversal slicing system error)
ER15 Layer positioning motor not calibrated
If the layer positioning motor has not been calibrated or there has been a flat battery, the trans-
versal slicing mode can not be entered.
Calibrate the layer positioning motor according to the instructions given in section “Patient posi-
tioning mechanism adjustment” on page D-14 (film-based panoramic x-ray) or “Patient position-
ing mechanism adjustment” on page E-31 (Dimax digital system).
3.4 Errors 20-28 (time out errors)
Er 20 Tube power generator time out
There is an individual RC-timing circuit on the generator processor board that measures the
exposure time length. If it exceeds about 25 seconds the generator is stopped with this error indi-
cation.
Check in service mode the length of the exposure. If it is less than 22 sec. and this error comes
on, the RC-circuit is defective. Replace the generator processor board.
Er 21 Up / down motor time out
If this motor runs more than 30 seconds continuously this time out error is generated and all
action is stopped.
If keyboard button was operated all the time the reason is either that the up/down motor cable is
broken (no movement or sound) or the carriage is jammed (humming sound 200 Hz can be
heard but no movement). If the carriage was moving but never stopped on the end limits the limit
sensor is inoperative. Check sensor operation in service mode.
If the motor was running while the keyboard was not operated and no buttons operate, defective
keyboard.
Er 22 Temple rest motor time out
If this motor runs more than 3 seconds continuously this time out error is generated and all action
is stopped.
Motor or motor cables broken if motor is not running
Motor limit detector inoperative. Check in service mode.