KEYENCE IB Series - Manual (Page 41)

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Setting the Tolerance Setting Value
The tolerance setting value consists of the upper limit value (HIGH setting value) and the
lower limit value (LOW setting value). By setting these values, judgments are made in three
levels: when the judgment value (P.V.) goes beyond the upper limit (HIGH judgment), when
the judgment goes beyond the lower limit (LOW judgment) and when the judgment is within
the acceptable range (GO judgment). Then, the judgment indicator and judgment output
are turned ON/OFF.
*1 When the output mode of judgment output is Normally Open (default value) ON/OFF
is reversed for Normal Close.
"4. Output Mode" (page 4-13)
*2 The judgment indicator ON/OFF condition can be changed.
"20. Judgment Indicator Color" (page 4-41)
*3 "Error Displays and Corrective Actions" (page A-4)
The tolerance setting value can be set either manually or automatically.
Judgment
Judgment output
*1
Judgment output
*2
HIGH GO LOW HI GO LO
HIGH ON OFF OFF Lights in red OFF OFF
GO OFF ON OFF OFF Lights in green OFF
LOW OFF OFF ON OFF OFF Lights in red
Error
*3
ON OFF ON Lights in red OFF Lights in red
DIN rail mount type (IB-1000/IB-1050) Panel mount type (IB-1500/IB-1550)
Item Setting Method
Manual setting
Directly enter the tolerance setting value (HIGH setting
value, LOW setting value).
Automatic
setting
Tolerance tuning Detect the master workpiece and set the tolerance.
2-point tuning
Detect the good target and defective target and set the
tolerance.
Point
When setting the tolerance setting value manually using the 2-point
tuning, make sure to set HIGH setting value to be larger than LOW
setting value.
Reference When setting HIGH setting value to be smaller than LOW setting value, the
judgment output is as follows.
• GO judgment output is not output regardless of the judgment value (P.V.).
(When setting HIGH setting value = LOW setting value = judgment value
(P.V.), and the hysteresis to 0.000, GO judgment output is turned on.)
• When the judgment value (P.V.) goes beyond the HIGH setting value and
falls below the LOW setting value, the HIGH judgment output and LOW
judgment output are output at the same time.
Judgment indicator