Operation By Plc Function (Pr. 414 To Pr. 417, Pr. 498, Pr. 506 To Pr. 515) - Mitsubishi Electric FR-A740-00023 Instruction Manual

Communication operation and setting

4.24.7 Operation by PLC function (Pr. 414 to Pr. 417, Pr. 498, Pr. 506 to Pr. 515)

I/O data read, write, etc. can be performed by accessing the inverter in the predetermined method using special
relays, special registers, etc.
Operation, parameter read/write, etc. can be performed in accordance with the created sequence programs (built
in the inverter) using input data from the control input terminals.
With the output signals, output data can be output to outside the inverter from the control output terminals as not
only the inverter's status signals but also pilot lamp on/off, interlock and other control signals set freely by the
user.
Parameter
Name
Number
PLC function operation
414
selection
Inverter operation lock
415
mode setting
Pre-scale function
416
selection
417 Pre-scale setting value
PLC function flash
498
memory clear
506 Parameter 1 for user
507 Parameter 2 for user
508 Parameter 3 for user
509 Parameter 4 for user
510 Parameter 5 for user
511 Parameter 6 for user
512 Parameter 7 for user
513 Parameter 8 for user
514 Parameter 9 for user
515 Parameter 10 for user
Refer to the FR-A700 PLC function programming manual for details of the PLC function.
346
Initial Value Setting Range
0
0
1
0
0
1
0 0 to 5
1 0 to 32767
0 0 to 9999
0 0 to 65535
Description
PLC function is invalid
PLC function is valid
(Inverter reset is necessary to make this setting valid.)
The inverter start signal is made valid regardless of the
sequence program execution key.
The inverter start signal is made valid only when the
sequence program execution key is set to RUN.
When the sequence program execution key is in the
STOP position, the inverter does not start if the inverter
start signal STF or STR is turned on. (If the key is
switched from RUN to STOP during inverter operation,
the inverter is decelerated to a stop.)
Pre-scale function selection (increments scaling factor)
0: No function
1: × 1
2: × 0.1
3: × 0.01
4: × 0.001
5: × 0.0001
Set the pre-scale value to calcute the number of
sampling pulse when inputting the pulse train.
9696: Flash memory clear
Other than 9696:
Flash memory is not cleared
Inverter parameters Pr. 506 to Pr. 515 can be used as
user parameters.
Since this parameter area and the devices used with the
PLC function, D110 to D119, are accessible to each
other, the values set in Pr. 506 to Pr. 515 can be used in a
sequence program.
The result of operation performed in the sequence
program can also be monitored using Pr. 506 to Pr. 515.