Outline Of Plc Function - Mitsubishi Electric FR-F800 Instruction Manual

5.11.14
PLC function
The inverter can be run in accordance with a sequence program.
In accordance with the machine specifications, a user can set various operation patterns: inverter movements at signal
inputs, signal outputs at particular inverter statuses, and monitor outputs, etc.
Pr. Name
414 PLC function operation
A800 selection
415 Inverter operation lock
A801 mode setting
416 Pre-scale function
A802 selection
417
Pre-scale setting value
A803
498 PLC function flash
A804 memory clear
1150 to
1199 User parameters 1toUser
A810 to parameters 50
A859
Outline of PLC function
• To enable the PLC function, set "1" or "2" in Pr.414 PLC function operation selection. When "2" is set in Pr.414, the
sequence startup (SQ) signal from the external input terminal is valid regardless of the setting of the Pr.338
Communication operation command source.
• Switch the execution key (RUN/STOP) of the sequence program by turning the SQ signal ON/OFF. The sequence program
can be executed by turning the SQ signal ON. To input the SQ signal, set "50" in any of Pr.178 to Pr.189 (input terminal
function selection) to assign the function to a terminal.
• When "1" is set in Pr.415 Inverter operation lock mode setting, the inverter can be operated only when the sequence
program is running. By changing the PLC program status from RUN to STOP during inverter operation, the motor
decelerates to stop.
To stop the inverter operation at the STOP status of the PLC program while performing auto operation using SD1148 (or
SM1200 to 1211) of the PLC program, set Pr.415 = "1".
• To write sequence programs, use FR Configurator2 on a personal computer connected to the inverter through RS-485
communication or USB.
NOTE
• For the details of the PLC function, refer to the PLC Function Programming Manual and the Instruction Manual of FR
Configurator2.
Initial Setting
value range
0 PLC function disabled
1
0
PLC function
enabled
2
The inverter start command is enabled regardless of the
0
operating status of the sequence program.
0
The inverter start command is enabled only while the sequence
1
program is running.
Unit scale factor
0: No function
1: 1
2: 0.1
0 0 to 5
3: 0.01
4: 0.001
5: 0.0001
Pre-scale
1 0 to 32767
setting value
0: Clears the flash memory fault display (no operation after
writing while the flash memory is in normal operation).
9696: Clears the flash memory (no operation Write after
writing during flash memory fault).
Other than 0 and 9696: Outside of the setting range
0, 9696
0
(0 to 9999)
0: Normal display
1: The flash memory has not been cleared because the
PLC function is enabled.
9696: During flash memory clearing operation or flash
memory fault
Desired values can be set.
Because devices D206 to D255 used by the PLC function can
be mutually accessed, the values set to Pr.1150 to Pr.1199 can
0 0 to 65535
be used by the sequence program. The result of performing
calculation by a sequence program can also be monitored by
Pr.1150 to Pr.1199.
(A) Application parameters
Description
The SQ signal is enabled by input from a
command source (external input terminal/
communication).
The SQ signal is enabled by input from an
external input terminal.
When the pulse train is input from terminal
JOG, the number of sampled pulses can be
converted.
The result of conversion is stored to SD1236.
"Number of sampled pulses" = "input pulse
value per count cycle"  "pre-scale setting
value (Pr.417)" "unit scale factor (Pr.416)"
PARAMETERS
Write
Read
5
GROUP
A
431