User guide

3-11
3
Basic Operations
IG-E
3-6 Setting the Tolerance Setting Value
The tolerance setting value consists of the upper limit value (HIGH side setting value) and
the lower limit value (LOW side 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 judgme
nt). Then, the judgment indicator and
judgment output
are turned ON/OFF.
*1 When the output mode of judgment output is Normal Open (default value) ON/OFF is
reversed for Normal Close.
"4. Output mode" (page 4-19)
*2 The judgment indicator ON/OFF condition can be changed.
"18. Display Color" (page 4-43)
*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 indicator
*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 (IG-1000/IG-1050) Panel mount type (IG-1500/IG-1550)
Item Setting Method
Manual setting
Directly enter the tolerance setting value (HIGH side
setting value, LOW side setting value).
Automatic
setting
To l erance tuning Detect the master workpiece and set the tolerance.
Two-point tuning Detect the good target and defective target and set the tolerance.
Note
When setting the tolerance setting value manually using the two-point
tuning, make sure to set "HIGH side setting value
! LOW side setting value".
Reference
When setting "HIGH side setting value ! LOW side setting value", the judgment
output is as follows.
• GO judgment output is not output regardless of the judgment value (P.V.).
(When setting HIGH side setting value = LOW side setting value = judgment value
(P.V.) and setting the hysteresis to 0.000, GO judgment output is turned on.)
• When the judgment value (P.V.) goes beyond the HIGH side setting value
and falls below the LOW side setting value, the HIGH judgment output and
LOW judgment output are output at the same time.
Judgment indicator