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The COMMBOX

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Chap 4 - Quiz

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1. What should be carefully monitored after the commissioning of the COMMBOX?
The color of the cables Communication data and possible alarms The length of the RJ45 connectors The position of the case
2. What is the main role of the COMMBOX in the energy system?
Connecting the batteries, the BMS and the inverter Producing electrical energy Converting direct current to alternating current Cooling the batteries
3. What operation allows you to quickly identify a loss of communication?
Replace the batteries immediately Increase the system voltage Monitor the CAN and RS485 communication statuses Disable the BMS
4. What can an irregular flashing of a communication LED reveal?
Normal operation A full charge of the batteries An improvement of the network A communication or configuration defect
5. What information does a power LED on provide?
The COMMBOX receives its power supply correctly An error in the CAN protocol A defective battery Loss of synchronization
6. What is one of the main causes of communication failures?
A low ambient temperature Poor wiring or faulty connectors A fully charged battery Solid wall mounting
7. What is the consequence of reverse polarity or incorrect wiring?
Better energy stability An increase in the life of batteries Improved CAN performance Loss of communication and malfunctions
8. What operation is part of the preventive maintenance of the COMMBOX?
Change BMS settings weekly Systematically replace cables Check connectors and cables regularly Disable RS485 communications
9. What is one of the main benefits of COMMBOX preventive maintenance?
Reduce the risk of failure and improve system reliability Automatically increase battery capacity Change UPS settings Remove CAN and RS485 protocols
10. Why do connectors need to be inspected regularly?
To increase the output voltage To improve the charging speed of batteries To detect wear, oxidation and bad contacts To change the BMS configuration