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5.6 Alarm Table
5.6.1 Alarms
Alarms of Overcurrent and Temperature
Id Alarm Meaning Solution
AL 1: Function
Amp. Brush
Brush Amperometric Protection Check consumption of the brush motor. Detected high current
on brush motor.
AL 2: Function
Amp. Vacuum
Vacuum Amperometric Protec-
tion
Check consumption of the vacuum motor. Detected high cur-
rent on vacuum motor.
AL 3: Function
Power Broken
Damage of Power Damage power of brush or vacuum: replace the main card.
This alarm could be shown also during the trailing of the ma-
chine.
AL 4: Function
Overcurrent
Output overcurrent on brush or
vacuum
Detect a shortcircuit on output brush motor or vacuum motor:
Check connections and motors.
AL 5: Function
Overtemperature
Thermal protection on
brush/vacuum
Overtemperature of brush/vacuum motor: check consump-
tion of motors.
Traction Alarms
Id Alarm Meaning Solution
AL 14: Traction
Lever pressed
Safety lever pressed before start-
ing
Detected safety microswitch pressed before starting : release
the safety lever.
AL 15: Traction
Overtemperature
Thermal protection on traction Overtemperature on traction : check consumption of traction
motor (IMx BT).
AL 16: Traction
Power damage
Power of traction damage Replace the main card. This alarm could be shown also during
the trailing of the machine. (IMx BT)
AL 17: Traction
Overcurrent
Traction Overcurrent Detected a shortcircuit on the traction motor output: Check
connections and traction motor (IMx BT).
AL 18: Traction
Amp. Traction
Traction Amperometric protec-
tion
Check how the traction function is used. Detected too high
working current on traction motor (IMx BT).
AL 19: Traction
Electrobrake
Electrobrake not inserted Check the condition of the electrobrake and its related mi-
croswitch.
General Alarms
Id Alarm Meaning Solution
AL 20: General
EEprom malfunction
Error reading internal memory Replace the main card.
AL 21: General
Key
Error key sequence Error on key signal: Check the key connection. Check, also,
the batteries connections and main card
AL 22: General
General Relay
Damage of general relay Check the traction motor connections. If the connection are
OK, the general relay on the main card is damaged: replace
the main card. The same alarm is present also if power fuse is
damaged
AL 23: General
Overvoltage
Overvoltage Detected a overvoltage on the main card. Check the batteries
connections.
AL 24: Traction
Battery connections
Battery not connected to the
main card
Check the traction motor, Detected high voltage on traction
motor (IMx BT)
AL 25: General
Control Card connec-
tion
No communication between con-
trol card and main card
Check the connections between control card and main card.
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