Mitsubishi Electric FR-F720-55K Instruction Manual page 102

TROUBLESHOOTING
Display
Operation
LED of the
panel of
FR-A7NF *
inverter
DEV (D2)
RMT (D4)
E.OP1
E.OP2
E.OP3
DEV (D2)
RMT (D4)
DEV (D2)
0.00
RMT (D4)
: Off, : Red is lit,
* Refer to page 8 for the LED indications.
96
Possible Causes
The inverter is not
participated in FL remote
network and communication
between the FR-A7NF and
switching hub is
disconnected.
After the inverter
participated in FL remote
network, communication
between the FR-A7NF and
switching hub is
disconnected.
FL remote network
communication is not
established.
: Green is lit, : Red is flickering
Check Point
Check that no break in the cable
between the FR-A7NF and
switching hub.
Check that node address setting
of the inverter and slave station
setting of the master are the
same.
Countermeasure
Make sure to connect the
cable between the FR-A7NF
and switching hub.
Set the node address of the
inverter and slave station of
the master to the same
setting.