Mitsubishi Electric FR-E800, Инструкция по эксплуатации

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15. (A) Application Parameters
15.11 PLC function
15.11
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.
 Outline of PLC function
• To enable the PLC function, set a value other than "0" in Pr.414 PLC function operation selection . (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.)
 Sequence start (SQ) signal
• 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 parameter from Pr.178 to Pr.189
(Input terminal function selection) to assign the function. When the SQ signal is assigned to any parameter from Pr.185
to Pr.189 (Terminal NET X function selection) , the sequence program can be executed just by inputing the SQ signal
via terminal NET X. (The SQ signal needs not be input via an external terminal.)
• When Pr.414 = "1 or 11", the SQ signal must be input according to the command source (except when the SQ signal is
assigned to terminal NET X).
Pr. Name
Initial
value Setting
range
Description
414
A800 PLC function operation
selection
0
0 PLC function disabled
1, 11
PLC function enabled
The conditions to enable the SQ signal
depends on the
Pr.338 setting.
2, 12
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.
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).
Write 9696: Clears the flash memory (no operation after writing
while the flash memory is at a fault).
Other than 0 and 9696: Outside the setting range
0: Normal display
Read
1: The flash memory is not cleared because the PLC
function is enabled.
9696: During flash memory clearing operation or flash
memory fault
675
A805
User parameter auto
storage function
selection
9999
1 Auto storage function enabled
9999 Auto storage function disabled
1150 to
1199
A810 to
A859
User parameters 1 to
User 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 .