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Alarm cause: improper communication between DSPs on control board, or/and defective
control board.
In case of alarm follow this procedure:
1. using EYE program interface, try to program control board flash memory;
2. replace control board .
Drive motor inverter overtemperature
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Eye alarm code: 20 for right drive motor
22 for left drive motor
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Alarm level: 5
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Alarm cause: inverter temperature, measured with a probe, exceed 100 ºC , or is inside
[95 ºC, 100 ºC] range at least 30 s.
In case of alarm follow this procedure:
1. alarm could be caused by ineffective temperature dissipation; verify thermal coupling
between inverter block and aluminium plate and between aluminium plate and truck
ballast. The presence of the correct amount of thermal grease in the coupling are
essential to ensure a correct heat exchange;
2. replace cable connecting the output CN1 ( for right drive motor) or CN2 ( for left
drive motor) of the control board to the corresponding inverter;
3. if temperature readings seem too high in function of total time interval of lift truck
using, replace inverter unit causing the alarm. You can read temperature measures
using “COMPACT” display or “EYE” communication software.
4. replace control board.
Serial communication alarm
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Eye alarm code: 21
-
Alarm level: 1
-
Alarm cause: error in serial communication between the two DSP; DSP present on main
board make a mutual software control, to insure fast diagnosis of such a fault.
