RS485 Troubleshooting Quiz

What is the purpose of the 'Slave Detect' function in the master inverter?

• To locate and solve RS485 communication issues

• To configure the inverter as 'Master'

• To connect up to 32 inverters on one bus

• To measure the resistance on the terminal block

Which tool is NOT required for troubleshooting RS485 communication issues?

• Flathead small screwdriver

• 5mm Helen hexagon key

• Ethernet cable

• Volt Meter + Resistance tester

How many inverters can be connected on one bus using the RS485 connection method?

• Up to 128 inverters

• Up to 64 inverters

• Up to 32 inverters

• Up to 16 inverters

What should be connected to B, A, and G as per the RS485 connection scheme?

• A to B, B to A, G to G

• B to B, A to A, G to G

• A to A, B to B, G to G

• B to A, A to B, G to G

What should be done before testing the resistance of the RS485 terminal block?

• Turn the DC switch ON

• Turn the AC supply OFF

• Check the resistance between points A and G

• Connect the RS485 cable in parallel to electric cables

What does the LCD panel display when the inverter is connected to the SolarEdge Monitoring Server?

• Connection timeout

• Error message

• Voltage and power readings

• S_OK

What is the resistance value when testing the entire bus for RS485 communication?

• 310 Ω

• 120 Ω

• 400 Ω

• 200 Ω

What is the most common issue related to RS485 communication faults?

• Multiple inverters stopped reporting

• One or more inverters stopped communicating

• A group of inverters were not detected

• All slaves were detected

What should be done if multiple inverters stopped reporting?

• Reconfigure the inverter as 'Master'

• Turn off the AC supply

• Replace the RS485 cable

• Check the communication board resistance

What is the purpose of configuring the inverter as 'Slave' in RS485 communication?

• To act as the 'Master' inverter

• To locate the non-reporting inverter

• To connect directly to the router/server

• To connect up to 32 inverters on one bus