9.2.3
Errors with code from E200 to E299
These errors codes are concerning problems related to the movement axis of the
unit.
9.2.3.1
E200: Zero position optical sensor of rotation always active /
E201: Zero position optical sensor of rotation never active /
E202 and E203: Zero position optical sensor of rotation still
active after exiting from zero sensor /
E205: Timeout on rotation
These errors are signalling a problem on the rotation axis movement.
The position of rotation is controlled by the optical sensor B1, that is activated
during the rotation axis reset movement; if this sensor is found active at the start
up phase, and it is never sensed de-activated, the E200 message error is displayed,
meaning that the sensor itself is broken or that the motor is not running.
In case that it is never sensed activated, the E201 is displayed, and the reasons are
the same.
E202 or E203 is displayed when the rotation zero sensor B1 is still active after exiting
from axis zero position.
E205 means that the optical sensor is never activated during the rotation axis reset.
In all cases, the optical sensor functionality can be checked placing an opaque thin
material in the optical path and using a multimeter, verify that the voltage between
pin X22-2 and pin X22-4 on the MCU board is about 5V when the optical path is
covered by the thin material and about 0V when the optical path is not covered.
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 X18 of motor M3; 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.
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