Mitsubishi MELSEC-F FX-TRN-BEG-E, User Manual

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FX-TRN-BEG-E C: Easy Does It! 3
B-34
2) Counting the number of parts
Control specifications
a) When the part supply command (X002) is set ON, the part supply output (Y000) is
initiated.
b) The conveyor operation command (X003) initiates the conveyer forward output (Y001).
c) The number of parts is counted (counter C0) by the detection sensor (X000).
d) When the number of parts reaches 10, the count-up indicator lamp (Y006) is lit.
e) The counter is reset by input (X001).
Minor Addition
Let’s stop the supply of parts when the current value of the counter reaches the set value
(K10).
• Include a NC contact for the counter to line
a) above.
Let’s supply parts only while the conveyor is moving.
• Include a NC contact for the conveyor
operation (Y001) to line a) above.
X002
Y000
X000
C0
a)
X003
X001
C0 RST
Y001
C0
Y006
K10
b)
c)
d)
e)
X002
Y000
C0
Add this.
X002
Y000
C0
Add this.
Y001
As you can see, the operation is changed when
only a minor addition is made in the program. In
actual machines, programs for assuring safety are
added to the basic control specifications.