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User and maintenance manual
2.5.9.4
Warning and error signals
SOC indicator
The yellow LEDs on the display shows the SOC (state of charge) value. If all LEDs are lit, the kart battery is fully
charged.
Pit LED
The pit LED on the steering wheel or on the front panel flashes when the SOC drops below 20%. In this case,
the kart must be recharged without delay. If the pit LED is continuously lit, the SOC value of one or more battery
cells has reached 0 or an error occurred. In this case, at least one of the red fault indicators (LEDs) on the dis-
play is also lit.
Fault indicators
The "Undervoltage" LED is lit, if the voltage measured at one or more cells is below 2.6 V. Possible causes:
–
Cell voltage below 2.6 V (cell is discharged and must be recharged without delay)
–
Cell defective (cell must not be recharged but replaced without delay)
–
Sense board defective (indicated values do not correspond to actual values; replace sense boards)
–
BMS CPU unit defective (replace)
The "Undertemperature" LED is lit, if the temperature measured at one or more cells is below -10 °C. Possible
causes:
–
Low ambient air temperature (do not drive the kart if the cell temperature is below -10 °C)
–
Sense board defective (indicated values do not correspond to actual values; replace sense boards)
–
BMS CPU unit defective (replace)
The "Overtemperature" LED is lit, if the temperature measured at one or more cells is above 60 °C. Possible
causes:
–
High ambient air temperature (do not drive the kart if the cell temperature is above 60 °C)
–
Fan, fan control defective/faulty (at high temperatures, the fans are unable to cool the battery adequately)
–
Cell defective (cell must not be recharged but replaced without delay)
–
Sense board defective (indicated values do not correspond to actual values; replace sense boards)
–
BMS CPU unit defective (replace)
The "System error" LED is lit, if a component of the BMS is defective or not correctly connected. Check the ca-
bles and crimping contacts for damage and proper connection. Replace defective components without delay.
For advice, contact the manufacturer.
