Mitsubishi Electric FR-A820-00046 Instruction Manual page 137

Installation and wiring
NOTE PORT1 and PORT2 do not need to be distinguished.
● When only one connector is used in star topology, either PORT1 or PORT2 is applicable.
● When using two connectors for line topology and ring topology, an Ethernet cable can be con-
nected to the connectors in any combination. For example, the cable can be connected
between PORT1s or between PORT1 and PORT2.
PORT1 and PORT1, PORT2 and PORT2
communi-
● Precautions
Do not touch the core of the cable-side or module-side connector, and protect it from dirt or dust.
If oil from your hand, dirt or dust is attached to the core, it can increase transmission loss, arising
a problem in data link.
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 depend-
ing on the operating environment of the cable. For details, contact your cable manufacturer.
Check the instructions on page 2-104 before wiring, and perform correct wiring.
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.
FR-A800
Connection between
Connec- Connec- Connec- Connec-
tor for tor for tor for
communi- communi- communi-
cation cation cation
(PORT2) (PORT1) (PORT2) (PORT1)
Wiring for use of the CC-Link IE Field Network (FR-A800-GF)
Connection between
PORT1 and PORT1
Connec- Connec-
tor for tor for tor for
communi- communi-
cation cation cation
(PORT2) (PORT1)
To the next
connector for
communication
(PORT2)
Connec- Connec-
tor for tor for
communi- communi-
cation cation
(PORT2) (PORT1)
To the next
connector for
communication
(PORT2)
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