Amplifier display, Selecting the id, Zero-point correction – KEYENCE GT2-100 Series User Manual

Page 8: Setup of limit values, Tips for convenient functions

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8

GT2-100-M-E

How to mount the lift lever

Mount the lift lever (OP-84397) between the spindle and the contact.

Secure the spindle with the lift lever and attach/detach the contact.

Amplifier display

Digital LED display

The main display during detection can be switched to the displays as shown
below by pressing the left/right Arrow buttons.
Refer to "Detection Functions" in the "GT2-100 Series User's Manual" for
details about the setting mode screen in which various settings are performed.

*1 This display appears only while the calculation function is used

when an expansion head is connected.

*2 This display appears only when [5out] is selected for [16. Special

output setting] in the basic setting mode.

1. P.V. value display ([P.V. = Present Value] Criterion value display)

Displays a value to be used for output judgment.

2. Calculated value display

Displays a calculated value such as a maximum or minimum value
of several detection points created when adding an expansion head
(Displayed only when an expansion head is added).

3. R.V. value display ([R.V. = Raw Value] Raw value display)

Displays an actual detection value of the detection target.

4. HH setting value display while using 5-output function

Displays/Sets the setting value to set above the HIGH setting value.

5. HIGH setting value display

Displays/Sets an upper limit value of the range of the detection target.

6. LOW setting value display

Displays/Sets a lower limit value of the range of the detection target.

7. LL setting value display while using 5-output function

Displays/Sets the setting value to set below the LOW setting value.

8. Preset value setup display

Displays/Sets an arbitrary value to be added to or subtracted from
the display value.

Selecting the ID

When the [head selection] button is pressed in the [main screen], the
head to be displayed or set is switched.

Zero-Point Correction

When you use this equipment for the first time or after the sensor head
is changed, be sure to correct the reference zero point.

Setup using buttons

1

Set any main display and perform the
detection of the detection target
(master workpiece) to serve as a
reference for zero-point correction.

2

Press the [PRESET] button (white button) with the master
workpiece being detected.
After "PrESEt" has blinked several times on the digital LED display

of the amplifier, "0.000.0"* will appear.

The zero-correction is completed.

*When the preset function is set, the preset value will appear.

Setup using external input

1

Perform detection of the detection target (master workpiece) to
serve as a reference for zero-point correction.

2

Make the correct pin connection according to the I/O connector.
Refer to page 15 of this manual for details about external input circuit diagrams.

Setup of Limit Values

The limit values are an upper limit value (HIGH setting value) and a
lower limit value (LOW setting value). Setting these values enables
three types of judgment (display/output): above the upper limit (HIGH),
below the lower limit (LOW), and within the range (GO).

Manual setup of limit values

The following shows how to set manually an upper limit value (HIGH

setting value) and a lower limit value (LOW setting value).

1

When in the main display, press the left/
right Arrow buttons until the HIGH setting
value display appears.

2

Enter an upper limit value (HIGH setting
value) with the top/bottom Arrow buttons.

3

Press the right Arrow button to display
the LOW setting value display.

4

Enter a lower limit value (LOW setting
value) with the top/bottom Arrow buttons.
The setup of range criteria values is completed.
To return to the P.V. value display, press the left/right Arrow buttons.

Tips for Convenient Functions

Automatic setup of limit values

This function automatically sets an upper limit value (HIGH setting

value) and a lower limit value (LOW setting value).

For master workpieces, set by "tolerance tuning"; and for actual

works (good or defective), set by "two-point tuning".

● Tolerance tuning

1

When in the main display, press the
left/right Arrow buttons until the P.V.
value display appears, then perform
detection of the master workpiece.

2

Press the [SET] button while the master workpiece is being
detected to capture the detected value.

3

Press the upper/bottom Arrow buttons to enter a tolerance
tuning setting range.

4

Press the [SET] button to fix the tolerance tuning setting range.
After [SEt] blinks several times on the digital LED display of the
amplifier, the P.V. value display automatically appears.
Tolerance tuning is completed.

● Two-point tuning

This is the method of setting the median values of the detected

good and/or defective workpieces as a range when the good

workpiece and HIGH/LOW defective workpieces are available.

Reference

• When "------" is displayed, zero-point correction is

disabled.

• Zero-point correction can be performed approx. 1 million

times. When zero-point calibration is frequently used, you
can perform setting so that the zero-point calibration will
not be written into the memory. Refer to "Origin Alignment"
in the "GT2-100 Series User's Manual" for details.

1. P.V. value display

2. Calculated value display*

1

3. R.V. value display

8. Preset value setup display

7. LL setting value display

while using 5-output function*

2

4. HH setting value display

while using 5-output function*

2

6. LOW setting value display

5. HIGH setting value display

The ID number currently
selected lights in red

The ID number currently
selected lights in red

The ID number currently
selected lights in red

Reference

• When "------" is displayed, tolerance tuning is

disabled.

• When "-FFFF" or "FFFF" is displayed, the settings

cannot be set correctly.

Reference

Tolerance tuning is enabled only when in the P.V.
value display.

Reference

Two-point tuning is disabled when "------" is displayed
as a R.V. value. When "- FFFF" or "FFFF" is displayed,
setting cannot be done accurately.

Master workpiece

HIGH setting value display

LOW setting value display

HIGH setting value

LOW setting value

Tolerance tuning setting range

This is a method for setting a range based on
the detection value of a master workpiece
when the master workpiece is available.

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