Inspecting Display On Parameter Unit And Status Led - Mitsubishi FR-E500 Series Instruction Manual

5.2.12 Inspecting display on parameter unit and status LED

In response to the occurrence of a fault, the display unit of the inverter automatically
displays the code of the detected fault and MNS Status LED shows the status of the
detected fault.
Display
FR-PU04
LED
(Option)
E.OPT Blinking Red
0.00 Steady Red
Possible Causes
Connection time-
out,
Master designated Master station has
inverter for not been
communication, but disconnected from
sent no messages network.
within time limit=4 ×
EPR.
Duplicate node No duplicate node
address; address;
Network power off; Network power on;
Network cable No damage to
offline; network;
Inverter is only All cables are in
node, not even a proper connection;
Master is present; Master is on
Network damaged. network.
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PROTECTIVE FUNCTIONS
Check Corrective Action
Reset the inverter,
Reconnect the
network,
Master is up and
running,
Master sends
messages within
time limit.
Check required items
in the left box,
Reset the inverter,
Restart the network.