16
(CODES) ALARM DISPLAY
All active alarms on the machine are displayed on the control panel.
Alarms may refer to the function unit, the drive unit and the machine general services.
Listed below are alarm summary tables complete with any relevant instructions/solutions.
“FUNCTION” ALARM SUMMARY TABLE
Alarm
Description
Solution
AL_1:Function
Brushes Ammeter
Brushes ammeter protection.
Check brushes motor working current. Excessive and continuous working current de-
tected on the brushes motor.
AL_2: Function
Vacuum Ammeter
Vacuum ammeter protection.
Check vacuum motor working current. Excessive and continuous working current de-
tected on the brushes motor.
AL_3: Function
Power stage Fail
Power circuit damaged.
Brushes or vacuum power circuit damaged: replace the power board.
The alarm may also be displayed if the machine is started when being towed or moving.
AL_4: Function
Overcurrent
Brushes or vacuum overcurrent.
Short circuit on brushes or vacuum motor detected: check wirings and motors.
AL_5: Function
Overtemperature
Brushes or vacuum circuit overtemperature.
Brushes and vacuum circuit power stage overtemperature: check absorption.
AL_7: Function
Act2 endsw fail
Squeegee actuator limit switch reading failure.
Limit switch setting failure.
Check connections and squeegee end switch position.
AL_8: Function
Act1 timeout
Brush actuator movement over the time limit (12s):
Check connections and any mechanical obstructions.
AL_9: Function
Act2 timeout
Squeegee actuator: end switch position not
reached
Squeegee actuator position not reached within the maximum time set. Check actuator
connections and/or any mechanical obstructions.
AL_11: Function
Water Level
Water tank full.
Water tank full. Check the water tank level.
“DRIVE” ALARM SUMMARY TABLE
Alarm
Description
Solution
AL_13: Traction
Pedal Failure
Pedal tear.
Check pedal potentiometer wirings.
AL_14: Traction
Release Pedal
Pedal active at power on.
Moving switch active at power on: release the pedal.
AL_15: Traction
Overtemperature
Traction circuit overtemperature.
Traction power stage overtemperature: check absorption.
AL_16: Traction
Power stage Fail
Traction circuit damaged
Traction circuit damaged: replace the power board.
The alarm may also be displayed if the machine is started when being towed or moving.
AL_17: Traction
Overcurrent
Traction overcurrent
Short circuit on traction motor detected: check wirings and motors.
AL_18: Traction
Tract. Ammeter
Traction ammeter protection.
Check traction motor's working current. Traction motor excessive overcurrent detected.
AL_19: Traction
Motor Voltage
Internal reading mistake.
If failure persists, replace board.
AL_24: Traction
Batt connection
Battery not connected to function card
Check traction motor's working current. Traction motor excessive overcurrent detected.
“GENERAL” ALARM SUMMARY TABLE
Alarm
Description
Solution
AL_20: General
EEprom Failure
Internal eeprom reading mistake
Replace board.
AL_21: General
Key-off failure
Key-reading failure.
Rebound detected on the key signal: check battery-keyboard-function card connec-
tions.
AL_22: General
Main relay failure
General relay damaged
The general relay on the board looks damaged: replace the board.
The alarm is triggered even in the event of a damaged power fuse.
AL_23: General
Overvoltage
Overvoltage.
Function card overvoltage detected.
Check battery connections.
AL_25: General
Keyboard fail
Display-function card communication error
Check connections between display and function card.
Summary of Contents for CHAMP 2417 RB
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