Rs485 Communication Port - Toshiba TOSVERT VF-FS1 Series Function Manual

2.3. RS485 communication port

RS485 port is useful for RS485 serial communication option (USB001Z) or Remote Keypad (RKP002Z).
Refer to the inverter instruction manual for details.
N.B.: Caution for LIU007Z
When a RS485 port of LIU007Z is used for RS485 serial communication option, the
communication option interrupts and disables the communication line between L
unit and the inverter. At that time L
"Communiaction error (bit6)" in "nvoAlarmWord" and "nvoDrvAlarm" to the network. However,
"Fault (bit0)" in "nvoStatusWord" is not set at that time. this is because identify difference between
this alarm and Communication error trip (err5). This abnormality will automatically cancel itself
if the RS485 serial communication option is disconnected.
W option unit propagates the abnormality as
ON ORKS
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W option
ON ORKS