Mitsubishi Electric MELSEC iQ-F FX5, Руководство по программированию

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8 APPLICATION INSTRUCTION
8.19 Initial State
• The switch functions shown in the table below are assigned to each of the devices specified for selector switches in the
operation mode. When X20 is assigned, it is necessary to set X20 to X24 as rotary switches so that they do not turn ON at
the same time. It is not necessary to wire unused switches, but they cannot be used for any other purpose because they
are occupied by IST instruction.
• Specify the smallest device number of practical state relays in (d1) (for the automatic mode).
• Specify the largest device number of practical state relays in (d2) (for the automatic mode).
• While the command input is ON, the following devices are automatically switched and controlled. While the command input
is OFF, the devices are not switched.
Source Device number
(example) Switch function Descriptions
(s) X20 Individual operation Each load is turned ON and OFF by an individual pushbutton switch.
(s)+1 X21 Return to zero point When the pushbutton switch for zero return is pressed, the machine automatically returns to
the zero point.
(s)+2 X22 Stepping Every time the start button is pressed, the machine performs one process.
(s)+3 X23 Cycle operation When the start button is pressed while the machine is located at the zero point, the machine
performs one cycle of automatic operation and stops at the zero point.
If the stop button is pressed in the middle of one cycle, the machine stops immediately. When
the start button is pressed after that, the machine performs the continuous operation from the
last position, and automatically stops at the zero point.
(s)+4 X24 Continuous operation When the start button is pressed while the machine is located at the zero point, the machine
starts continuous operation.
When the stop button is pressed, the machine finishes the current cycle until the zero point,
and then stops at the zero point.
(s)+5 X25 Zero return start Starts return to the zero point.
(s)+6 X26 Automatic start Starts the stepping operation, cycle operation or continuous operation.
(s)+7 X27 Stop Stops each operation.
Device number Descriptions ON/OFF condition
SM8040 STL transfer disable ON condition Always remains ON in the individual operation.
Always remains ON in the stepping operation except when the [START] button is
pressed.
Turns ON when the [STOP] button is pressed during return to the zero point and in
the cycle operation.
OFF condition Turns OFF when the [START] button is pressed in the stepping operation.
Turns OFF after the [STOP] button is pressed during return to the zero point and in
the cycle operation.
SM8041 Transfer start ON condition Turns ON when the [START] button is pressed in the stepping operation and cycle
operation.
Turns ON after the [START] button is pressed in the cycle operation.
OFF condition Turns OFF when the operation mode is changed from RUN to STOP.
Always remains OFF in the individual operation and during return to the zero point.
Turns OFF after the [STOP] button is pressed in the continuous operation.
SM8042 Start pulse ON condition Instantaneously turns ON when the [START] button is pressed.
OFF condition Remains OFF except in the ON condition.
SM8043 Zero return complete ON condition Turns ON when return to the zero point is completed (in the user program).
OFF condition Turns OFF when the operation mode is changed from RUN to STOP.
Remains OFF while return to the zero point is not completed.
SM8044 Zero return condition ON condition Turns ON when the zero point condition is established (in the user program).
OFF condition Turns OFF when the operation mode is changed from RUN to STOP.
Remains OFF while return to the zero point is not completed.
SM8045 All output reset disable ON condition Turns ON when all-output reset is not executed (in the user program).
OFF condition Turns OFF when all-output reset is executed (in the user program).
SM8046 STL state ON ON condition Turns ON when SM8047 (Enable STL monitoring) is ON and either step relay (device
S) is ON.
OFF condition Turns OFF when SM8047 (Enable STL monitoring) is OFF or when SM8047 (STL
monitor enable) is ON and all step relays (device S) are OFF.
SM8047 Enable STL monitoring ON condition Turns ON when the IST instruction command is given.
OFF condition Turns OFF when the step ladder is finished (in the user program).