10.3. Motor drive alarm board
The board controlling the motor drive is located inside the front upright
(fig. C ref. 6).
If drive is
interrupted, the error code should be identified by means of the status LED. In the absence of
malfunctions, the status LED is steadily on while the machine is in operation. If a malfunction is
detected, the status LED provides two types of information, a slow flash (2 Hz) or a rapid flash (4
Hz) to indicate the severity of the malfunction.
Malfunctions with a slow flash are cancelled automatically once the malfunction has been repaired
and the machine functions normally again. Malfunctions with a rapid flash ("*" in the table) are
considered more serious. The machine must be turned of using the key switch
(fig. A ref. 1)
to
reset operation after repairing the malfunction.
The indication of severity remains active for 10 seconds, after which the status LED flashes
constantly showing a two digit malfunction code until the repairs have been carried out.
For example, error code "1,4" is displayed as follows:
☼ ☼☼☼ example alarm code 1,4
LED CODES DESCRIPTION
1,1 ☼ ☼ Overheating > 92°
1,2 ☼ ☼☼ Accelerator malfunction
1,3 ☼ ☼☼☼ Speed limiter potentiometer malfunction
1,4 ☼ ☼☼☼☼ Overvoltage malfunction
1,5 ☼ ☼☼☼☼☼ Undervoltage malfunction
2,1 ☼☼ ☼ Principal contactor actuator opening failure
2,3 ☼☼ ☼☼☼ Principal contactor actuator closing failure
* 3,1 ☼☼☼ ☼ Accelerator potentiometer malfunction
3,2 ☼☼☼ ☼☼ Brake activation malfunction
3,3 ☼☼☼ ☼☼☼ Low battery voltage
3,4 ☼☼☼ ☼☼☼☼ Brake deactivation malfunction
3,5 ☼☼☼ ☼☼☼☼☼ HPD malfunction (incorrect regulation of accelerator
potentiometer)
* 4,1 ☼☼☼☼ ☼ Motor short circuit
* 4,2 ☼☼☼☼ ☼☼ Incorrect motor voltage/short circuit in motor
* 4,3 ☼☼☼☼ ☼☼☼ EEPROM malfunction
* 4,4 ☼☼☼☼ ☼☼☼☼ Short circuit in motor/EEPROM error
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