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Identification: MD-AL-GI-00
Rev. 1.1 of 15/03/2021 - Application: GID
User’s Manual 3PH 20000TL - 33000TL-V2
Rev. 1.1 15/03/2021
c.
Position the dip switches of the last inverter of the daisy chain as shown in the figure below
for activating the 120 Ohm resistor and closing the communication chain. If there are no
switches, physically connect a 120 Ohm resistor to terminate the bus.
Figure 83 – Positioning of dip switches to connect the isolation resistor
3)
Check that the RS485 icon is shown on the display of all the inverters. This indicates that the
inverters are actually connected via the serial line. If this symbol does not appear, check that the
connection is correct, as indicated in this guide.
Figure 84 – RS485 symbol on the display of the inverter
4)
Set a sequential Modbus address on each inverter connected:
a.
Enter the “Settings” menu.
b.
Scroll to the submenu “Modbus Address.”
c.
Change the digits and set an increasing address on each inverter, starting from 01 (first
inverter) to the last inverter connected. The Modbus address will be shown on the display of
the inverter alongside the RS485 symbol. There should be no inverters with the same
Modbus address.
