Photovoltaic inverter photoelectric converter 485 wiring

What happens if you touch an RS485 inverter?

Touching electronic components can cause damage to or destroy the inverter or the product through electrostatic discharge. • Ground yourself before touching any component. The SMA RS485 Module enables SMA inverters to establish wired RS485 communication. The type label clearly identifies the product.

What is RS485 wiring in Sungrow SH**RS and s sh**RT inverters?

The purpose of the RS485 wiring in Sungrow SH**RS and SH**RT inverters is to allow multiple inverters to be controlled from one energy meter. As the single and 3-phase configurations are different, we will deal with each separately. The connection is done via the RS485 cable, and runs from meter to master, then to slave(s).

What is a RS485 wire?

Circular Connector: Pin 1 = Red = Positive 5 Volts, Pin 2 = Ground, Pin 3 = Yellow = RS485+, Pin 4 = Blue or White = RS485- Most RS485 conductors have 4 wires inside. A typical wiring scheme calls for an IN and an OUT, that means that each run will have a positive, a negative, a common wire, and a ground.

How many RS485 inverters can be connected in parallel?

Note that Meter connects to A2/B2 (pins 1 & 3)in the master, and the master communicates with the slaves on A1/B1 (pins 5 & 7). If connecting two RS485 cables in parallel, please use the provided Bootlace terminators. The maximum number of 3-Phase Hybrid inverters that can be connected inn parallel is 5 (five) – One Master, and up to Four slaves.

Where does the ground go on a RS485 inverter?

In the picture, only ONE ground is actually grounded, and it's at the coms box. The rest are just passing through the inverter.Also note the resistor at the end of the RS485 line. The last inverter will always require this. The last OUT will go to the coms box or datalogger at the end of a chain.

Which SMA inverters are compatible with the RS485 module?

The RS485 Module must only be installed in the following SMA inverters: • STP 50-40 (Sunny Tripower CORE1) The inverter still complies with the standard after the product has been installed. The product must only be used in countries for which it is approved or released by SMA Solar Technology AG and the grid operator.