Limit – KEYENCE LS-3100/3100W Series User Manual
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Example of Operation
You are to measure the diameter of round bars. The reference diameter is 10
mm, and you wish to convert a difference of 1 mm into 1 V.
In this case, first set 100.000 mm to 0 V. Then, to represent each 1 mm
change in diameter from the reference by 1 V, set the reference plus 6 mm to
+6 V and the reference minus 6 mm to -6 V. That is, +6 V = 16 mm and -6 V
= 4 mm.
Step
Key operation
Display
1
Use PRM to display analog
voltage range.
2
Press "1".
3
Press "6".
4
Press ".".
5
Press "0" four times.
6
Press ENT
7
Press "4".
8
Press ".".
9
Press "0" four times.
10
Press ENT.
• The LS controller is factory-set to +6 V = 60 mm and -6 V = - 60 mm.
• A range of 0.024 mm to 240 mm can be specified.
• Make sure that the value corresponding +6 V is greater than that for -6 V.
• When your reference value is an integer with no decimals, steps 4, 5, 8
and 9 can be omitted.
CHAPTER 4 Functions and Controls
+ 6
6 0 . 0
V
0 0 0
-
=
-
0 . 0 0 0 0
=
V
6
6
+ 6 V
1
-
=
6
. 0 0 0 0
=
V
6
0
[
]
-
+ 6 V
6
-
=
6
. 0 0 0 0
=
V
6
0
[
]
-
1
+ 6 V
-
=
6
. 0 0 0 0
=
V
6
0
[
]
-
1
. 0 0 0 0
6
+ 6 V
-
=
=
V
6
1
. 0 0 0 0
6
+ 6 V
-
=
4
=
V
6
1
. 0 0 0 0
6
[
]
+ 6 V
-
=
.
=
V
6
1
. 0 0 0 0
6
[
]
4
+ 6 V
-
=
=
V
6
1
. 0 0 0 0
6
[
]
4 . 0 0 0 0
+ 6 V
-
=
=
V
6
1
. 0 0 0 0
6
4 . 0 0 0 0
+ 6 V
6
-
=
6
. 0 0 0 0
=
V
6
0
[
]
-
1
.
LIMIT
You can set the following 3 parameters in LIMIT:
• 3-step or 7-step differentiation
• Tolerance limits when 7-step differentiation is selected
• Comparator output type; Relay or open-collector (if the measured value is
above the upper limit or below the lower limit).
• Use FNC to set the tolerance limits for the measured value appearing on
the subdisplay (CH2).
➪ See P.32
Note
Note
08.10.1, 10:54 AM
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