Mitsubishi FR-A800 User Manual

(A) Application parameters
PARAMETERS
545
5
GROUP
A
5.14.17 PLC function
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. (The Pr.414 setting change becomes valid after inverter reset.)
• 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".
•
For reading or writing sequence programs, use FR Configurator2 on the personal computer connected to the inverter via RS-
485 communication or USB. (When
Pr.414  "0", sequence programs can be read from or written to FR Configurator2.)
NOTE
• For the details of the PLC function, refer to the PLC Function Programming Manual and the Instruction Manual of FR
Configurator2.
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
Initial
value
Setting
range
Description
414
A800
PLC function operation
selection
0
0 PLC function disabled
1
PLC function
enabled
The SQ signal is enabled by input from a
command source (external input terminal/
communication).
2
The SQ signal is enabled by input from an
external input terminal.
415
A801
Inverter operation lock
mode setting
0
0
The inverter start command is enabled regardless of the
operating status of the sequence program.
1
The inverter start command is enabled only while the sequence
program is running.
416
A802
Pre-scale function
selection
0 0 to 5
Unit scale factor
0: No function
1: 1
2: 0.1
3: 0.01
4: 0.001
5: 0.0001
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)"
417
A803
Pre-scale setting value
1 0 to 32767
Pre-scale
setting value
498
A804
PLC function flash
memory clear
0
0, 9696
(0 to 9999)
0: Clears the flash memory fault display (no operation after
writing while the flash memory is in normal operation).
Write9696: Clears the flash memory (no operation Write after
writing during flash memory fault).
Other than 0 and 9696: Outside of the setting range
0: Normal display
Read
1: The flash memory has not been cleared because the
PLC function is enabled.
9696: During flash memory clearing operation or flash
memory fault
1150 to
1199
A810 to
A859
User parameters 1toUser
parameters 50
0 0 to 65535
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
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.

Mitsubishi FR-A800 Specifications

General

Brand	Mitsubishi
Model	FR-A800
Category	Inverter
Language	English