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8.4 - ALARMS DURING THE FUNCTIONING (Fig. 9)
If the machine malfunctions, the display (38) will indicate the alarm type, according to the
following list.
In order to restore the machine’s proper functionality, consult the list below and perform the
recommended procedures.
If the recommended actions should not resolve the problem, contact Technical Assistance.
Alarm
Meaning
Solution
AL_1: Function
Brush Amp.
Brush amperometric
protection
Check the brush operating
mode. High brush motor
working current detected.
AL_2: Function
Aspirator Amp.
Aspirator amperometric
protection
Check aspirator motor ab-
sorption. High aspirator mo-
tor working current detected.
AL_3: Function
Power failure
Power stage damaged
Damaged aspirator or brush
power stage: replace card.
AL_4: Function
Overcurrent
Overcurrent on brush or
aspirator outputs
Short circuit detected on
brush or aspirator motor out-
put: check connections and
motor state.
AL_5:
Function
Overtemperature
Thermal protection on
brush/aspirator stage
Brush and aspirator power
stage overheating: check ab-
sorption.
AL_6: Function
Act1:endsw fail
Brushes actuator limit
switch reading anomaly
Anomalies in the limit switch
configuration. Check the
brushes actuator limit switch-
es connections and status.
AL_7: Function
Act2:endsw fail
Wiper actuator limit switch
reading anomaly
Anomalies in the limit switch
configuration. Check the
wiper actuator limit switches
connections and status.
AL_8: Function
Act1:timeout
Brushes actuator:
final position not reached
Brushes actuator position
not reached within the max-
imum expected time. Check
the actuator connections
and/or possible mechanical
obstacles.
AL_9: Function
Act2:timeout
Squeegee actuator:
final position not reached
Squeegee actuator position
not reached within the max-
imum expected time. Check
the actuator connections
and/or possible mechanical
obstacles.
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