KEYENCE FS-V34C(P) - Manual (Page 7)

7
Channel Selection Switch 2 Special Functions of Channel 2
„ Limit Setting
This function issues a prediction alarm when the light intensity difference is small
when judging whether or not there is a workpiece.
Two types of limit setting function are available:
Peak limit setting
Samples the peak values of setting value while the received light intensity is
higher than the output 1 setting value, and issues an alarm when the minimum
peak value is lower than the output 2 setting value.
Bottom limit setting
Samples the bottom values of setting value while the received light intensity is
lower than the output 1 setting value, and issues an alarm when the maximum bot-
tom value is higher than the output 2 setting value.
„ Counter Function
This mode counts the output (edge of OFF to ON) of output 1, and compares it
with the setting value.
The following three count modes are available:
„ Alarm Output Function
When using the APC function, the alarm output is issued when the load on the LED is too
large.The alarm output is also issued when the DSC indicator is flashing (refer to
Dynamic Sensitivity Correction (DSC) Function on page 4).
Channel 2 normal display when using the alarm output function
Output 2 function selection
Select the setting by pressing the button.
• Normal (light intensity) detection
• Used as limit setting output.
• Used as counter output.
• Used as alarm output.
Counter function setting
Select the setting by pressing the button.
• Over count mode 1
• Over count mode 2
• Auto reset mode
One-shot time setting
Select the setting by pressing the button.
The value can be set between 0.1 and
9999 ms.
When LiMt
is selected When Std
is selected
(Instantaneous display)
(Normal display)
(Normal display)
(Normal display)
(Normal display)
DSC
DSC
DSC
DSC
Limit function setting
Select the setting by pressing the button.
• Sets the peak value.
• Sets the bottom value.
When Cnt
is selected
When Auto
is selected
When ovr1/ovr2
is selected
DSC
When AlrM
is selected
DSC
1 2
(Instantaneous display)
DSC
(Instantaneous display)
DSC
(Instantaneous display)
DSC
DSC
DSC
DSC
DSC
Press for 3 seconds or longer
MODE
Press
MODE
Press
MODE
Press
MODE
To set channel 2, set the channel
selection switch to "2".
Channel selection switch
Channel 2 normal display when using the limit setting function
How to reset the peak/bottom value
The value can be reset by pressing the SET button for 3 seconds or more
while pressing the MODE button.
With FS-V33(P)/34(P), the value can be reset externally by selecting Reset at
External input function selection (page 5, No.5). The peak/bottom value is also
reset after the power is turned off.
Q7T
Over counter 1
The output turns ON with the value higher than the setting
value.The counter value increases until it is reset.
Q7T
Over counter 2
The output turns ON only when the value is the same as the
setting value.The count value increases until it is reset.
#XVQ
Auto reset
One-shot output is performed when the value is the same as the
setting value, and the count value is automatically reset.
Channel 2 normal display when using the counter function
How to reset the count value
The value can be reset by pressing the SET button for 3 seconds or more
while pressing the MODE button.
With FS-V33(P)/34(P), the value can be reset externally by selecting Reset at
External input function selection (page 5, No.5). The count value is also reset
after the power is turned off.
Bottom hold maximum value
Peak hold minimum value
1ch output
2ch output (PEAk setting value)
Setting value when
PEAk is selected
Setting value when
botm is selected
1ch value
2ch output (botm setting value)
DSC
DSC
Alternate
display
Setting value
Pressing the button
can adjust the setting value.
Peak/bottom value
DSC
DSC
Alternate
display
The setting value can be displayed
up to 65.535 on the Extension display
(page 6, No. 9).
Setting value Count value
Pressing the button
can adjust the setting value.
DSC DSC
When the load on
the LED is greater Normal