Mitsubishi Electric FR-A820-00046 Instruction Manual page 1035

Parameters
Setting procedure
Set a value other than "0" in Pr. 414 "PLC function operation selection" to enable the PLC function.
To set the inverter as the master, set "0" in Pr. 1124 "Station number in inverter-to-inverter link",
and to set the inverter as a slave, select a station number from 1 to 5 and set the number in Pr. 1124.
Set the total number of inverters used for the inverter-to-inverter link function in Pr. 1125 "Number
of inverters in inverter-to-inverter link system". For example, set "3" in Pr. 1125 when two slave
inverters and the master inverter are used.
Use FR Configurator2 to write sequence programs to the master inverter.
NOTES Use different station numbers for different devices. (If different devices have the same station
number, the communication cannot be performed properly.
Set consecutive numbers for the station numbers. (Do not skip any numbers like 1, 2, then 4.)
When Pr. 1124 is set to a value equal to or larger than the value set in Pr. 1125, normal communica-
tion is not available.
Use the Inverter-to-inverter linkup (LNK) signal to check that the master-slave communication is
established. (For the details of the LNK signal, refer to page 5-832.)
To detect the interruption of the inverter-to-inverter link communication and activate the protec-
tive function, set Pr. 997 "Fault initiation" in advance, and create and execute a sequence program
to activate the protective function by the input of the signal loss detection signal from the exter-
nal sensor.
For the details of the PLC function, refer to the PLC Function Programming Manual and the
Instruction Manual of FR Configurator2.
For the details of FR Configurator2, refer to the Instruction Manual of FR Configurator2.
FR-A800
Inverter-to-inverter link function (FR-A800-E)
5 - 833