Operation Status Leds - Mitsubishi Electric FR-A800 Series Instruction Manual

• Check the following:
- Is any Ethernet cable disconnected?
- Is any of the Ethernet cables shorted?
- Are the connectors securely connected?
• Do not use Ethernet cables with broken latches. Doing so may cause the cable to unplug or malfunction.
• Hold the connector part when connecting and disconnecting the Ethernet cable. Pulling a cable connected to the module
may damage the module or cable, or result in malfunction due to poor contact.
• The maximum station-to-station distance is 100 m. However, the distance may be shorter depending on the operating
environment of the cable. For details, contact your cable manufacturer.
• Check the instructions on
• When the operations listed below are performed, all stations on the network may be reconnected. At that time, a data link
error may momentarily occur in all the stations, and the communication error E.OP1 may occur in the connected inverters.
Network configuration
Star topology
Line topology / ring topology
• To keep outputting a data link error (inverter communication error), set Pr.500 Communication error execution waiting
time or Pr.502 Stop mode selection at communication error.
NOTE
• When wiring cables to the inverter's RS-485 terminals, take caution not to let the cables touch the CC-Link IE Field Network
communication circuit board or of the inverter's circuit board. Otherwise, electromagnetic noises may cause malfunctions.
• After wiring, wire offcuts must not be left in the inverter. Doing so may cause a fault, failure, or malfunction.

2.11.6 Operation status LEDs

• Check the operation status LED to confirm the CC-Link IE Field Network operating status.
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page 110 before wiring, and perform correct wiring.
• Powering ON/OFF a slave station or the switching hub
• Connecting/disconnecting an Ethernet cable connected to the switching hub
• Disconnecting an Ethernet cable from a slave station and connecting it to another slave station or to
the switching hub
• Disconnecting ten stations or more, or disconnecting half the number of slave stations in the system or
more
• Changing the network topology when adding a slave station
• Simultaneously powering ON/OFF multiple stations
• Simultaneously connecting/disconnecting Ethernet cables to/from multiple stations (When a data link
faulty station returns, a data link error will occur in all the stations.)
• Disconnecting ten stations or more, or disconnecting half the number of slave stations in the system or
more
• Changing the network topology when adding a slave station
At plug in/unplug or power ON/OFF
RUN
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Operation
D LINK
SD ERR
RD L.ERR
2.11 Wiring for use of the CC-Link IE Field Network (FR-A800-GF)
A momentary error
in all stations
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