PVI 50/60 TL Installation and Operation Manual (Rev C)
DOCR-070645-E
Page 46 of 102
2.4 Inverter Communication Connections
The PVI 50/60TL inverter supports industry standard Modbus RS485 communications
for monitoring purposes. In addition to SolrenView and/or third party monitoring,
these inverters are also able to send data to an online portal which is used for
remote diagnostic purposes. This capability can be used by Yaskawa-Solectria Solar
for remote diagnostics, remote firmware upgrades and remote troubleshooting.
This function is performed by the Ethernet Network Card.
Each Ethernet Network Card can handle up to 32 inverters. If a site has more than 32
inverters, additional Ethernet Network Cards will be needed.
When a third party monitoring system is used, the DAS should be connected to the
Ethernet Network Card, and the Ethernet Network Card is then connected to the
inverters.
Each inverter has a Communication Board installed in the wiring box which is used to
daisy chain the inverters using RS485 for communication purposes. The Ethernet
Network Card should be mounted on the communications card of the first or last
inverter in the daisy chain.
The following sections describe an overview of the Communication Board and
Ethernet Network Card.
2.4.1
Communication Board:
Each inverter has a Communication Board (shown below) which is installed in the top
right corner of the wiring box. This board is used for daisy chaining inverters for
connection to the Ethernet Network Card.
Figure 2-39: Communication Board