9.2.3.3
E240: Zero position sensor for Y axes always active /
E241: Zero position sensor for Y axes never active /
E243: Timeout of Y axes
These errors are signalling a problem on the Y axis movement. The position of Y
axis is controlled by the optical sensor B2, that is activated during the translation
axis reset movement.
E240 is displayed when the sensor B2 is found active at the start-up phase and it is
never sensed de-activated.
E241 is displayed when the sensor B2 is never sensed activated.
E243 means that the optical sensor B2 is never activated during the translation axis
reset.
The above errors may mean that the sensor B2 is broken or that the motor system
is not running (MCU driver or motor group fault).
1.
If there is no variation and the arm does not move or moves with difficulty or
jumps:
a.
check the belt and verify that it is not broken; if the belt is loose, adjust its
tension
b.
check cable X19 of motor M4; there can be a short circuit or a broken wire;
check also for a loosen contact. In case of short circuit, replace the cable,
verifying also that no damage has been caused to the motor driver on the
MCU.
Note
In the event of a short circuit on the X19 cable, the MCU board fuse F1 may
be blown (the 24V power supply LED H2 OFF) and / or the motor driver (on
the MCU board) may be damaged: if it is the case, replace the fuse F1 and
then the MCU board.
2.
If the arm moves but no variation of the signals is detected, replace the optical
sensor B2 and if the problem is still present, the MCU board (see paragraph
11.3.2).
Technical Service additional information required
:
-
Audio / Video with the global view of the unit movement
-
Audio / Video of the view of the translation motor group movement (with unit top
cover removed)
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