Off
Incorrect Modbus connection to the card
Verify that the Low signal is
connected to terminal N and the
High signal is connected to
terminal P
Master is not polling
Verify that the master (PLC or
PC) is polling the inverter.
Incorrect baud rate setting
Verify that the baud rate (I/O47) is
set to match the baud rate of the
inverter.
Incorrect byte format
The inverter communicates using
8 data bits, 1 stop bit and no
parity bits. Verify that the master
is set to the same.
7
modbus-rtu iS5 manual.doc