68 Service manual
4. Troubleshooting CRANEX
®
Novus e
4.3 Problems while preparing the unit for an exposure
Image of emergency button appears on main display
CAUSE
The emergency switch has been pressed down.
NOTE: LED D4 (ESTOP on) on L1600 will come on
when the emergency switch is pressed down.
SOLUTION
Turn the emergency switch clockwise to release it.
The side control panel Return key does not work
CAUSE
The Membrane key panel is faulty.
SOLUTION
Press some of the other keys to see if they work cor-
rectly. If they do it indicates that the return membrane
key is faulty and the membrane key panel must be
replaced.
Error E7 (Opto or r-motor failed during r-movement)
CAUSE
L2100 or R5100 or rotating unit stepper motor is faulty.
The rotating unit cannot position itself correctly and
keeps on rotating, until the timeout (E 9) stops move-
ment, because L2100 is faulty.
The rotating unit does not move when the R key is
pressed.
SOLUTION
L2100 can be checked by using the service command
"optotest", see section Service Assistant and Service
Functions.
The optotest command displays values that indicate
the position of L2100. When you manually rotate the
rotating unit the values should change, sector 0, sector
1, sector 2 and sector 3, which indicates that the op-
tosensors on the board are working and that L2100 is
functioning correctly.
If the values do not change, L2100 or the cable from
L1700 to L2100 is defective.
If L2100 is functioning correctly it indicates that there is
a problem with the stepper motor.
Check if R5100, the stepper motor or cable from R5100
to the stepper motor are faulty. Replace any that are.
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