11.2.7 Power-box
The car is equipped with a Power Distribution Module, usually referred to as power-box.
The Power-box manages the current distribution on the power lines listed on the following paragraphs. 16
power lines are available. The lines are subdivided in 2 groups: HP lines (total of 6) and LP lines (total of 10).
Some of the lines are merged in order to meet the power requirements of the devices connected.
User devices connected to customer available connections (CAN AUX ports, Radio, Power AUX) must not
exceed 5A in total and 2A per power supply pin.
WARNING: Do not disconnect the powerbox connection when power is ON!
If the power-box detects an overcurrent on one of the lines, it acts shutting off the power supply in the
relevant line. Please note that a cut on a power line implies an abnormal draw of current, most of the time
due to a short-circuit on the devices powered by the line or on the wiring loom. It is recommended to check
for the source of the electrical fault to avoid damages to the electrical components.
If the power-box cuts a line, it needs to be re-set in order to power the line cut again. To re-set the power-
box it is necessary a power cycle (the jump battery must be disconnected).
Evidence of line being cut are available on dashboard and data logging. If a line is turned off the alarm “ELEC-
F” is displayed on the dashboard. The powerbox page displays the line turned off with red background.
In the logged data are available the channels:
• PSD_HP_Alarm_1_6: bitmapped, triggers value 1 on relevant bit if one of the HP lines has been shut
off
• PSD_LP_Alarm_1_8: bitmapped, triggers value 1 on relevant bit if one of the LP lines (from number
1 to number 8) has been shut off
• PSD_LP_Alarm_9_10: bitmapped, triggers value 1 on relevant bit if one of the LP lines (number 9 and
10) has been shut off
Please refer to the tables below showing bitmap configuration for the channels above
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