Special Register (Master); Special Register (Slave) - Mitsubishi Electric A800-E Instruction Manual

Inverter-to-inverter link function
Device No.
Communication status of inverter-to-
SD1461
inverter link
 Special register (master)
Device No.
SD1470 to SD1477 Inverter-to-inverter link receive data 1 to 8 (slave 1)
SD1478 to SD1485 Inverter-to-inverter link send data 1 to 8 (slave 1)
SD1486 to SD1493 Inverter-to-inverter link receive data 1 to 8 (slave 2)
SD1494 to SD1501 Inverter-to-inverter link send data 1 to 8 (slave 2)
SD1502 to SD1509 Inverter-to-inverter link receive data 1 to 8 (slave 3)
SD1510 to SD1517 Inverter-to-inverter link send data 1 to 8 (slave 3)
SD1518 to SD1525 Inverter-to-inverter link receive data 1 to 8 (slave 4)
SD1526 to SD1533 Inverter-to-inverter link send data 1 to 8 (slave 4)
SD1534 to SD1541 Inverter-to-inverter link receive data 1 to 8 (slave 5)
SD1542 to SD1549 Inverter-to-inverter link send data 1 to 8 (slave 5)
 Special register (slave)
Device No.
SD1470 to SD1477 Inverter-to-inverter link receive data 1 to 8 (master)
SD1478 to SD1485 Inverter-to-inverter link send data 1 to 8 (master)
SD1486 to SD1549 For manufacturer setting. Do not set.
Troubleshooting
Condition
Communication is not
established.
A command sent by the master
is not applied to a slave.
74
PARAMETER
Name
Name
Name
Possible cause
The same station number is assigned to multiple
inverters.
The station numbers are not 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.)
The connection is half-duplex.
The inverter is not reset after Pr.1124 and Pr.1125
are set.
The PLC function is disabled.
Description
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.)
b15
Bit Target station
0 Slave 1
1 Slave 2
2 Slave 3
3 Slave 4
4 Slave 5
Data 1 to 8 received from slave 1
Data 1 to 8 sent to slave 1
Data 1 to 8 received from slave 2
Data 1 to 8 sent to slave 2
Data 1 to 8 received from slave 3
Data 1 to 8 sent to slave 3
Data 1 to 8 received from slave 4
Data 1 to 8 sent to slave 4
Data 1 to 8 received from slave 5
Data 1 to 8 sent to slave 5
Receive data 1 to 8 from master
Send data 1 to 8 to master
Set Pr.1124 correctly.
Set Pr.1124 so that the station numbers are
consecutive.
Set Pr.1125 correctly.
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.)
Reset the inverter.
Set a value other than "0" in Pr.414 to enable the
PLC function.
b5 b4 b0
Description
0: The link is not established.
1: The link is established.
Description
Description
Countermeasure