8
NOTE
• Set the compatible mode switch before switching ON the inverter and do not change the setting while the power is
ON. Otherwise you may get an electric shock.
• Do not turn ON the switch 2 of the compatible mode switch.
1.3 MNS LED (operation status indication)
The MNS LED indicates the operating status of the option unit by its indication status.
Check the position of LED on
LED
indicator
Description
Corrective action
OFF
Inverter power OFF
Supply power to the inverter.
Network power OFF
Supply power to the network.
Cable disconnected
Check for a DeviceNet cable disconnection, connector contact fault, and misplaced
terminating resistor.
Own node only on the network
Supply power to the master.
Different baud rate between the
inverter and master
Set the same baud rate for the inverter (
Pr.346
) and master.
Green
(flickering)
Connection not established
(Cable connection and network
power are normal.)
Check the node address setting (node address switches and
Pr.345
) of the inverter.
Set the master to the RUN mode.
Check that the size (number of bytes) of the I/O communication from the master matches
with that set in
Pr.346
of the inverter. (For how to check the I/O communication size of the
master, refer to the Instruction Manual of the master device.)