346
Communication operation and setting
4.24.7 Operation by PLC function (Pr. 414 to Pr. 417, Pr. 498, Pr. 506 to Pr. 515)
Refer to the FR-A700 PLC function programming manual for details of the PLC function.
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
Number
Name
Initial Value Setting Range
Description
414
PLC function operation
selection
0
0
PLC function is invalid
1
PLC function is valid
(Inverter reset is necessary to make this setting valid.)
415
Inverter operation lock
mode setting
0
0
The inverter start signal is made valid regardless of the
sequence program execution key.
1
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.)
416
Pre-scale function
selection
0
0 to 5
Pre-scale function selection (increments scaling factor)
0: No function
1:
×
1
2:
×
0.1
3:
×
0.01
4:
×
0.001
5:
×
0.0001
417
Pre-scale setting value
1
0 to 32767
Set the pre-scale value to calcute the number of
sampling pulse when inputting the pulse train.
498
PLC function flash
memory clear
0
0 to 9999
9696: Flash memory clear
Other than 9696:
Flash memory is not cleared
506
Parameter 1 for user
0
0 to 65535
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
.
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
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