Selecting detection mode, Avoiding effects of dust and stains, Activating key lock – KEYENCE PX-10 User Manual

Page 4: Edge detection mode (page 6, no. 5), Using external input (px-10/10p only)

Selecting Detection Mode

Detection mode can be set for normal detection or for one of the following two
modes.

●

Edge Detection Mode (Page 6, No. 5)

This mode detects the change in the received light intensity during a given period
of time. This mode can be set to react only to rapid changes in intensity and not
slow changes in intensity.

•

Select "Edge detection mode" in page 6, No. 5.

■

Sensitivity setting

Quickly press the

button once to set the maximum sensitivity setting. This

completes the setting.

•

If the sensitivity is too low, the sensor may sense objects other than the

workpiece. In this situation, increase the value by fine-adjusting the sensitivity

(see "Fine-adjusting Sensitivity" on page 3).

●

Dynamic Sensitivity Correction (DSC) Mode
(Page 6, No. 5)

DSC automatically corrects the setting value according to the changes in the
received light intensity when there is no workpiece (output OFF). This function is
effective when the light intensity difference is small when judging whether or not
there is a workpiece.

•

Select "Dynamic Sensitivity Correction" in page 6, No. 5.

■

Sensitivity setting

Sensitivity is set in the same way as for the normal detection mode

(page 4)

The DSC indicator illuminates when DSC mode is set.

•

When L-ON is selected, the upper limit of the correctable range is twice as

much as the initial setting value.

•

The value is stored in memory even after the power is turned off.

•

The DSC indicator blinks when the L/D-ON settings are inadequate or the

amount of light changes drastically with output OFF. Verify the settings again

when the indicator blinks.

Avoiding Effects of Dust and Stains

There are two methods for avoiding the effects of dust and stains. One uses
external input and the other does not. KEYENCE recommends using the method
with external input.

■

Using external input (PX-10/10P only)

Use the external input .to periodically correct the setting value and the display value

When using a thrubeam sensor head:

See "Percent Calibration" (page 3).

When using a reflective sensor head:

See "Zero Shift Function" (page 5).

■

Not using external input

See "Edge Detection Mode" and "Dynamic Sensitivity Correction Mode" (page 4).

●

Using External Input (PX-10/10P only)

Use the following procedure to import a signal from an external device.

Select an option other than OFF in the external input function selection (page 6, No. 6).

Short circuiting the pink wire for at least 2 ms as shown below (at least 20 ms
for OFF) accepts the signal.

PX-10

PX-10P

•

External input settings (external calibration/display scaling) can be changed
up to 1 million times.

•

Input is not received while setting each mode.

•

When external calibration is selected, external input performs the same

operations as with the

button.

■

Sensitivity settings and display scaling settings

Both the sensitivity and the display scaling can be set when using the external input.
In external input function selection (page 6, No. 6), select "External calibration".
In display value correction function selection (page 7, No. 8), select "Display
scaling function".
The following shows an example of use during percent (%) calibration and
display scaling.

Activating Key Lock

The key lock function disables the operation of all keys.

Press and hold the

button or the

button for at least 3 seconds

while holding down the

button.

•

Use the same procedure to deactivate keylock.

•

During the operations shown above where the display shows "Loc", pressing

and holding the

button for at least 3 seconds activates key lock mode

with PIN number.

Press the

buttons to enter a PIN number between 0 and 9999,

then press the

button to activate the key lock. Use the same procedure

to deactivate the function.

Note

Write down the PIN number and store it some place safe so that you do not forget it.

The lock cannot be released if an incorrect PIN number is entered.

Rising edge detection

Detects an increase (rising edge)
in the received light intensity.

Falling edge detection

Detects a decrease (falling edge)
in the received light intensity.

Rising/falling
(both-edge) detection

Detects an increase (rising edge)
and a decrease (falling edge) in
the received light intensity

SET

UP/DOWN

MODE

SET

UP/DOWN

MODE

DSC indicator

Brown

Blue

Pink

Brown

Pink

Blue

SET

Input OFF

Input ON

% calibration

Display scaling

3 seconds

or less

Input OFF

Input ON

% calibration

3 seconds

or longer

DOWN

MODE

SET

UP/DOWN

MODE

3 seconds or longer

MODE

UP/DOWN

MODE