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Run/stop Method Of Plc Function From An External Source (remote Run/stop); Run/stop Method Of Plc Function From An External Source; Stop - Mitsubishi Electric A800 Programming Manual

800 series, plc function.
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RUN/STOP method of PLC function from an external source (remote RUN/STOP)

3.14
RUN/STOP method of PLC function from an
external source (remote RUN/STOP)
The PLC function RUN/STOP is executed by ON/OFF of the SQ signal.
Remote RUN/STOP is performed by RUN/STOP of the PLC function from an external source when the SQ signal remains in
the ON state (RUN state).
Application of remote RUN/STOP
Remote RUN/STOP can be performed by remote control using remote RUN/STOP in the following types of cases.
• When the inverter is out of reach
• When executing RUN/STOP for the inverter in an enclosure from an external source
Operation at remote RUN/STOP
The operations of the sequence program that performs remote RUN/STOP are as follows.
• Remote STOP:
The sequence program is executed up to the END instruction, and enters the STOP state.
• Remote RUN:
If remote RUN is executed when the inverter has been switched to the "STOP state" by remote STOP, the state
changes to RUN state again, and the sequence program is executed from step 0.
Remote RUN/STOP method
The following methods can be used for remote RUN/STOP.
• Setting using the PLC function parameters (by contact)
Remote RUN/STOP can be executed by turning the remote RUN contact OFF/ON.
For example, this can be used to STOP the PLC function at the emergency stop contact.
(The state is "RUN" when the remote RUN contact is OFF, and "STOP" when the remote RUN contact is ON.)
POINT
POINT
• PLC function parameter settings for the remote RUN contact
X0 to X1F can be set for the remote RUN contact.
(For details, refer to the Instruction Manual of FR Configurator2)
96
Sequence program
SQ terminal
Remote RUN contact
(External input terminal)
Built-in sequence
function:
RUN/STOP status
Step 0
END
ON
OFF

STOP

RUN
STOP status
Step 0
END
0

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