Planmeca Proline EC ceph, Technical Manual

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Chapter C - HELP & ERROR MESSAGES
Planmeca Proline EC X-ray unit C-5
ERROR MESSAGE EXPLANATIONS
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
normal but if it starts to appear more frequently, the tubehead 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 tubehead 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 tubehead or generator processor replacement the tube fila-
ment 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 Errors 21-26 (time out errors)
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, defec-
tive 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.
Er 23 Layer adjust motor time out
If this motor runs more than 30 seconds continuously this time out error is generated and all
action is stopped.
Motor or cables broken if motor is not running.
If keyboard button was operated all the time the reason is either that the layer motor cable is
broken (no movement or sound) or the carriage is jammed (loud sound can be heard). If the
carriage was moving but never stopped on the end limits the limit sensor is inoperative.
Check sensor operation in service mode. End limits do not stop the motor in service mode, be
careful not to break the mechanism!
If the motor was running while the keyboard was not operated and no buttons operate, defec-
tive keyboard.