Led Status; Device Status Led (Dev), Remote Status Led (Rmt); Transmitting (Tx)/Receiving (Rx) Led; Communication Set Status Led (Chg) - Mitsubishi Electric 700 Series Instruction Manual

4.4

LED status

Each LED indicates the operating status of the inverter and network according to the indication status.
4.4.1

Device status LED (DEV), remote status LED (RMT)

LED Status

Node Status
DEV RMT
Power is OFF
Hardware fault
FL remote network is not connected Although hardware is normal, it is not connected to the FL remote network.
FL remote network at a remote stop It is correctly set to connect to the FL remote network and waiting for remote I/O control.
FL remote network during remote
connection processing
Master is not present
FL remote network
during remote operation
Own node is disconnected
Setting error
Duplicate node
Unsupported protocol
:OFF, : red is lit, : green is lit,
: red and green are alternately flickering
4.4.2

Transmitting (TX)/receiving (RX) LED

LED Status Node Status
Not transmitting (TX)
/not receiving (RX)
Transmitting (TX)/receiving (RX)
:OFF, : green is lit
4.4.3

Communication set status LED (CHG)

LED Status Node Status
Communication setting is not
changed
Communication setting is
changed
:OFF, : red is flickering
CHG : Communication set status LED
DEV : Device status LED
TX/RX : Reception/transmission LED
RMT : Remote status LED
The inverter power is OFF.
Node address is out of range (other than 1 to 64).
The option board is faulty.
A contact fault or other failure has occurred in the option connector between the
inverter and a communication option.
Although remote I/O control started, initial processing is in progress.
When the master is disconnected from FL remote network.
During remote I/O control
When the own node is disconnected from FL remote network.
Although it is connected to the FL remote, setting error is found.
(When the slave is not the one the master is expected.)
When node address is duplicate with other node address
Communication is attempted via an unsupported protocol.
:red is flickering, : green is flickering,
Flickers at high speed during continuous transmitting/receiving
Red flickers when the setting value actually reflected and of node address switch
differ. The setting value of the node address switch is reflected by re-powering ON the
inverter in this status, then communication setting status LED turns OFF.
DEV
CHG
RMT
TX RX
Description
Description
Description
LED status
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