Inverter-to-inverter link function
74
Special register (master)
Special register (slave)
Troubleshooting
SD1461
Communication status of inverter-to-
inverter link
The communication status of the slaves in the inverter-to-inverter
link is stored.
(In the slave inverter, only its own communication status is
indicated.)
Device No.
Name
Description
SD1470 to SD1477
Inverter-to-inverter link receive data 1 to 8 (slave 1)
Data 1 to 8 received from slave 1
SD1478 to SD1485
Inverter-to-inverter link send data 1 to 8 (slave 1)
Data 1 to 8 sent to slave 1
SD1486 to SD1493
Inverter-to-inverter link receive data 1 to 8 (slave 2)
Data 1 to 8 received from slave 2
SD1494 to SD1501
Inverter-to-inverter link send data 1 to 8 (slave 2)
Data 1 to 8 sent to slave 2
SD1502 to SD1509
Inverter-to-inverter link receive data 1 to 8 (slave 3)
Data 1 to 8 received from slave 3
SD1510 to SD1517
Inverter-to-inverter link send data 1 to 8 (slave 3)
Data 1 to 8 sent to slave 3
SD1518 to SD1525
Inverter-to-inverter link receive data 1 to 8 (slave 4)
Data 1 to 8 received from slave 4
SD1526 to SD1533
Inverter-to-inverter link send data 1 to 8 (slave 4)
Data 1 to 8 sent to slave 4
SD1534 to SD1541
Inverter-to-inverter link receive data 1 to 8 (slave 5)
Data 1 to 8 received from slave 5
SD1542 to SD1549
Inverter-to-inverter link send data 1 to 8 (slave 5)
Data 1 to 8 sent to slave 5
Device No.
Name
Description
SD1470 to SD1477
Inverter-to-inverter link receive data 1 to 8 (master)
Receive data 1 to 8 from master
SD1478 to SD1485
Inverter-to-inverter link send data 1 to 8 (master)
Send data 1 to 8 to master
SD1486 to SD1549
For manufacturer setting. Do not set.
Condition
Possible cause
Countermeasure
Communication is not
established.
The same station number is assigned to multiple
inverters.
Set
Pr.1124
correctly.
The station numbers are not consecutive.
Set
Pr.1124
so that the station numbers are
consecutive.
The specified number of inverters in the system is
not correct.
(
Pr.1124
is set to a value equal to or larger than
the value set in
Pr.1125
.)
Set
Pr.1125
correctly.
The connection is half-duplex.
Use full-duplex connection. (When
Pr.1426 Link
speed and duplex mode selection
= "0 (initial
value)", check that the hub and the Ethernet cable
are compatible with full-duplex connection.)
The inverter is not reset after
Pr.1124
and
Pr.1125
are set.
Reset the inverter.
A command sent by the master
is not applied to a slave.
The PLC function is disabled.
Set a value other than "0" in
Pr.414
to enable the
PLC function.
Device No.
Name
Description
b15
b0
b4
b5
Bit
Target station
Description
0
Slave 1
0: The link is not established.
1: The link is established.
1
Slave 2
2
Slave 3
3
Slave 4
4
Slave 5