Keyence FS-V31 Instruction manual

Keyence FS-V31 Instruction manual
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Keyence FS-V31 is a high-performance digital fiber sensor that combines advanced technology with user-friendly features to provide reliable detection in various industrial applications. With its dynamic sensitivity correction (DSC) function, it automatically adjusts the sensitivity based on changes in the received light intensity, ensuring stable detection even in fluctuating environments. The two-point calibration and full auto calibration modes simplify the setup process, allowing for quick and precise adjustments.

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1
DIGITAL FIBER SENSOR
FS-V30/31(P)/31C(P)/31M/32(P)/32C(P)
Instruction Manual
Part Names
I/O Circuit
! FS-V31/32/31M ! FS-V31P/32P
*1 FS-V31/31M only *2 FS-31M only *3 FS-V31P only
! FS-V31C/32C
Output Circuit Diagram Input Circuit Diagram
! FS-V31CP/32CP
Output Circuit Diagram Input Circuit Diagram
! Socket Cable (Sold Separately)
For FS-V31C(P)/32C(P) Pin and wire color table
Mounting Unit
! Mounting on a DIN Rail
1 Align the claw at the bottom of the main body with
the DIN rail. While pushing the main body in the
direction of the arrow 1, slant it in the direction of
the arrow 2.
2 To dismount the sensor, raise the main body in
the direction of the arrow 3 while pushing the
main body in the direction of the arrow 1.
! Installation on a Wall (Main Unit Only)
Attach the unit to the optional mounting bracket
(OP-73880), mount them together, and secure
them with two M3 screws as shown in the illus-
tration.
Connecting Multiple Amplifiers
Up to 16 sub units can be connected to one main unit.
1 Remove the protection cover on the side of
the main unit.
2 Install the amplifier one by one on the DIN rail.
3 Engage the two claws of the child unit with the
recesses on the main unit side until you hear a
click sound.
4 Attach the end units (option: OP-26751) to the
both ends of the connected amplifiers in the
same way as in step (2).
5 Sandwich the amplifiers between the end
units. Tighten the screws at the top (two
screws x two units) with a Phillips screwdriver
to fix the end units.
Connecting Fiber Unit
1 Open the dust cover in the direction
shown by arrow 1.
2 Move down the fiber lock lever in the
direction shown by arrow 2.
3 Insert a fiber unit into the fiber insertion
holes to a length of the fiber insertion sign
(i.e., approximately 14 mm).
4 Move down the fiber lock lever in the
direction shown by arrow 4.
Note
If a thin fiber unit is used, an adapter provided with the thin fiber unit will be required.
Unless the right adapter is connected, the thin fiber unit will not detect targets correctly. (The
adapter is supplied with the fiber unit.)
To connect the coaxial reflective type fiber unit to the amplifier, connect the single-core fiber
to the transmitter side, and connect the multiple-core fiber to the receiver side.
Warning This product is used to detect targets. Do not apply the product to
safety circuits for human protection.
This product is not of explosion-proof construction. Do not use the
products in places with flammable gas, liquid, or dust.
This product is a sensor of DC power supply type. Do not apply AC
power. The product may explode or burn if an AC voltage is applied.
SEL
M
SEL
M
DSC
DSC
Operation status indicators
Digital monitor
Setting value
(Displayed in green)
Current value
(Displayed in red)
Dust cover
Fiber lock lever
Set button (SET)
DSC indicator
Manual button
Mode button
Power selection switch*1
Expansion protective cover
Expansion connector
Output selector
Cable*2
*1 When set to “M”, the power mode is fixed to Mega Turbo.
*2 FS-V30 does not have the cable. M8 connector for FS-V31C(P)/32C(P)
Max. 100mA
0 VDC
12 to 24 VDC
(Control output)
Brown *1
Orange
Monitor output (1 to 5 V)*2
Blue *1
Black
Photoelectric sensor main circuit
Overcurrent
protection circuit
Protection
circuit
Load 5 to 40 VDC
Devices with
10 k input
impedance min.
Photoelectric sensor main circuit
Max. 100mA
0 VDC
12 to 24 VDC
(Control output)
Brown *3
Blue *3
Black Load
Overcurrent
protection circuit
0 VDC
12-24 VDC
5-40 VDC
1*
4
Sensor main circuit
Overcurrent protection circuit
Load
3 *
DC3.3 V
3 *
2
(Short-circuit current
1 mA or less)
PLC, etc.
0 VDC
Sensor main circuit
1
2
3
4Pin assignment
* FS-V31C only
1 *
3 *
4
0 VDC
12-24 VDC
Sensor main circuit
Overcurrent protection circuit
Load
1*
2
(Short-circuit
current 2 mA
or less)
PLC, etc.
12-24 VDC
Sensor main circuit
* FS-V31CP only
1
2
3
4Pin assignment
Connected pin No. Core wire cover color
q Brown
w White
e Blue
r Black
3
4
1
2
OP-73864 (cable length:2 m)
OP-73865 (cable length:10 m)
Cable outer dia. Adapter Appearance
ø1.3 Adapter A
(OP-26500)
ø1.0 Adapter B
(OP-26501)
OP-73880
OP-26751 (a set of two)
Fiber insertion sign
Receiver
Transmitter
Single-core fiber
Multi-core fiber
96M1557
2
Making Sensitivity Settings
! Two-point Calibration
In this mode, the PV used will be the mean value of two sensing values obtained
with and without a workpiece.
1 Press the SET button without any workpiece placed in front of the fiber unit.
2 Place a workpiece placed in front of the fiber unit, and press the SET button.
If the sensitivity difference does not have enough room, “----” flashes for about two seconds
after the calibration is complete. The set value is stored in memory even in that case.
! Maximum Sensitivity Setting
Set the sensitivity without a workpiece in the case of the reflective type, and with a
workpiece in the case of the through-beam or retro-reflective type.
Press the SET button for three seconds in the state as shown in the above figure.
(Release the button when SET flashes.)
When setting the sensitivity, set the value slightly higher than the received light intensity.
! Full Auto Calibration
In this mode, the PV will be set to the mean value of the maximum and minimum incident val-
ues obtained within a certain period. Use this mode to detect moving workpieces.
1 Press the set button for a minimum of three seconds while the target
workpiece is passing the sensing area of the fiber unit.
• While the SET button is pressed, the sensitivity of the sensor will be set
according to the incident values.
• After the setting is completed, the setting value is displayed on the digital monitor.
! Positioning Calibration
1 Press the SET button without any workpiece placed in front of the fiber unit.
2 Place a workpiece on the position where you want to perform positioning.
Press the SET button for 3 seconds or longer until the display fl ashes.
Fine-adjusting Sensitivity
The setting value can be directly changed by pressing the manual button.
Percentage (%) Calibration
This is a calibration method that can set the setting value by percentage with ref-
erence to the received light intensity at the time of sensitivity setting.
For example, if the target value is set to –10P, the setting value is determined 10%
lower than the received light intensity when the SET button is pressed.
1 When selecting the sensitivity setting method (page 4, No. 2), select the %
calibration, and set the target value of calibration.
2 Taking the desired light intensity as a reference (normally without a
workpiece), press the SET button.
* While the % calibration is in use, other calibrations (sensitivity setting) cannot
be used.
* With FS-V31C(P)/32C(P), by periodically performing external calibration from
PLC or other devices, stable detection can be performed even with a small
sensitivity difference.
Output Selection
Either light-ON mode or dark-ON mode is selectable.
Dynamic Sensitivity Correction (DSC) Function
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.
At Detection mode selection (page 4, No.4), select “Dynamic sensitivity correction
mode” beforehand.*
How to set the sensitivity is the same as in the normal mode.
The DSC indicator illuminates when the DSC function is set.
* When Light 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 flashes when the light intensity during output OFF greatly fluctuates
or the L/D ON selection is inappropriate. In such a case, check the setting again.
Edge Detection Mode
This mode detects the change in the received light intensity during a given period
of time.
! Filter Setting
Basically, leave this setting as its initial value. If the passage interval of workpieces
is too short for the unit to respond, strengthen the level and try again.
The selectable filter level differs depending on the power modes.
*HSP: HIGH SPEED
As the number becomes smaller, the filter becomes stronger, which makes the unit difficult to
respond to gradual changes in light intensity.
! Making Sensitivity Settings
The sensitivity is set to maximum when the SET button is pressed quickly once.
When the setting value is too low and the unit detects objects other than the work-
piece, fine-adjust the setting value to a higher number.
! Operation When Switching Outputs
When extension display (page 5, No.8) is set for the number of digits to be
displayed for the received light intensity
1 Press the manual button quickly once, and check that the setting value flashes.
2 While the setting value is flashing, change the setting value with the Manual button.
DSC
DSC
When the setting is completed,
the setting value is displayed.
Workpiece
DSC
3 sec or longer
"Reflective model"
"Through-beam model"
DSC
Workpiece
DSC
Workpiece
DSC
When the setting is completed,
the setting value is displayed.
Head
Workpiece
SEL M
DSC
Rising edge detection Detects the increase (rising edge) of the
received light intensity
Falling edge detection Detects the decrease (falling edge) of the
received light intensity
Filter level HSP* FINE TURBO SUPER ULTRA MEGA
Default state 5 8 9 9 9 9
Setting range 1 to 5 4 to 8 5 to 9 6 to 9 8 to 9 9 only
Setting Operation
L-ON Normally OFF. Turns ON only when the light intensity changes.
D-ON Normally ON. Turns OFF only when the light intensity changes.
SEL M
DSC
Press
Press 2 within five seconds
after pressing 1.
1
2
SEL M
When the area detection mode is
selected, the selection options are
NO and NC.
DSC
SEL M
DSC
DSC indicator
3
Area Detection Mode
This mode is suited to detecting the received light intensity only of a certain range.
To set this mode, select the area detection mode at Detection mode selection (page 4, No.4).
Set the value so that the upper limit setting value is
larger than the lower limit setting value.
The unit does not respond when the upper limit set-
ting value is less than or equal to the lower limit set-
ting value.
! How to switch the upper limit setting value (HI) and the lower
limit setting value (LO)
When the button is pressed, “HI” or “LO” and the setting value alternately flash.
When the MODE button is pressed while the display alternately flashes, the “HI” or
“LO” display changes. How to configure the sensitivity setting is the same as
when in the normal detection mode.
Setting the Display Scaling
This is the function to adjust the current received light intensity to the ìscaling tar-
get value.
1 When selecting a display value correction function (page 5, No. 6), select the
display scaling function, and set the target value.
2 During the normal display, press the SET button while pressing the MODE button.
(Scaling is performed for the current light intensity at this time.)
The reference light intensity can be set in the following range in reference with the
currently received light intensity:
No value can be set when the Edge detection mode is selected.
The value is stored in memory even after the power is turned off.
The value is not reflected to the analog output of the FS-V31M.
When using FS-V31C(P)/32C(P), external inputs can be used.
Zero-shift Function
The Zero-shift function is used to forcibly set the current light intensity to zero.
1 At Display value correction function selection (page 5, No.6), select “Zero-shift function”.
2 When the SET button is pressed while the MODE button is pressed, the current
light intensity is forcibly set to zero.
This function cannot be used when the Dynamic sensitivity correction (DSC) or
Edge detection mode is selected.
The value is stored in memory even after the power is turned off.
The value is not reflected to the analog output of the FS-V31M.
When using FS-V31C(P)/32C(P), external inputs can be used.
External Input [Function only for FS-V31C(P)/V32C(P)]
1 Signals can be input externally by selecting an external input function (page 4, No. 4-C).
2 The signal can be accepted by short-circuiting the pin (2) for 2 ms or more as
shown below for each model (20 ms for OFF).
* For FS-V31C/31CP only.
Setting using an external input is up to 1 million times.
No inputs are accepted while setting each mode.
When external calibration is selected, the operation is the same as with the SET button.
! Special Function
By performing the following operation, both sensitivity setting and scaling can be
performed using external input. Select external calibration (page 4, No. 4-C) and
display scaling. The following is the example when using the % calibration.
Display Selection
The factory default value is “1” only. Other items can be displayed only after being
selected at Display customization selection (page 5, No.8).
*1 When ULTRA/MEGA mode is selected, the current received light intensity can
be displayed up to 5 digits.
The setting value flashes when the button is pressed once.
The setting can be changed by pressing the button while flashing.
*2 The excess gain is displayed in a 5% increment from 85 to 115%.
*3 The current light intensity for the setting value is displayed in percentage.
*4 Holds and displays the peak value and the bottom value.
How to reset the peak and bottom values (with the 5/6 display)
While pressing the MODE button, press the SET button for 3 seconds or longer to reset
the peak and bottom values. Turning the power off also resets the values.
With FS-V31C(P)/32C(P), the value can be reset externally by selecting Reset at
External input function selection (page 4, No.4-C).
! User-friendly Functions (Direct Access Menu)
The hold display (5/6) can be set in detail by pressing the button for 2 seconds or longer.
The power mode and attenuation function for the power mode display (3) can be
set by pressing the button for 2 seconds or longer.
Key Lock Function
The key lock function disables the operation of all keys.
1 While pressing the MODE button, press the ( ) button for at least three seconds.
The same steps can be taken to deactivate key lock.
For more information on the key lock levels and the PIN number key lock function,
refer to page 6.
Even when the above condition is satisfied, the unit
may not respond when the HI and LO values are close
to each other because of hysteresis. Be sure to oper-
ate the unit to check whether the values are valid.
Power mode Minimum value Maximum value
If the value exceeds the
range, Err is displayed
and scaling is performed
up to the possilbe range.
HIGH SPEED/FINE/TURBO Approx. 1/20 times Approx. 16 times
SUPER Approx. 1/40 times Approx. 8 times
ULTRA Approx. 1/160 times Approx. 2 times
MEGA Approx. 1/320 times Approx. 1 time
HI: Upper limit
setting value
LO: Lower limit
setting value
ON
OFF
OFF
Received light
intensity
1pin *
3pin *
2pin
+V
OV
1pin *
3pin *
2pin
+V
OV
FS-V31C/V32C FS-V31CP/V32CP
Input OFF
Input ON
% calibration Display scaling
3 seconds
or less
Input OFF
Input ON
% calibration% calibration
3 seconds or more
Press
MODE
Press
MODE
Press
MODE
Press
MODE
Press
MODE
Press
MODE
Press
MODE
Parameter Current received
light intensity
Current received
light intensity
Current received
light intensity
Extension display
(received light intensity) *1
Bar display *2 Excess gain (%) *3
Bar display *2
Power mode
Excess gain (%)
Peak value
*4
Excess gain (%)
Bottom value
*4
Received light
intensity
Peak value *4
Received light
intensity
Bottom value *4
DSC
DSC
DSC
DSC
DSC
DSC
DSC
DSC
DSC
1 7
5
2
3
4
6
Press
MODE
DSC
DSC
Press for 2 seconds
or longer.
.
.
.
.
.
Hold display selection
Select the setting by pressing the button.
Updates every time the current light
intensity is less (or more) than the specified
peak and bottom values.
Displays the maximum and minimum peak
values since the power is turned on (total
number).
Displays the maximum and minimum
bottom values since the power is turned on
(total number).
Displays the minimum peak value and the
maximum bottom value since the power is
turned on (total number).
Displays the maximum peak value and the
minimum bottom value since the power is
turned on (total number).
Press for 2 seconds or longer.
Press
MODE
Press
MODE
DSC
DSC
DSC
Press to select (see page 4, No. 1).
Press to select (see page 5, No. 5).
SEL M
DSC
4
Operation Configuration
Normally, this unit can be used in the basic settings.
Set other functions as necessary.
Pressing for 3 seconds or longer displays the basic menu.
Select a function with the button, and press to confirm.
The setting for each item is confirmed when selecting END and pressing .
Basic Setting Menu
Detection Setting Menu
MODE
MODE
MODE
Basic
setting menu
1. Power mode selection
2. Sensitivity setting method selection
3. Timer mode selection
4. Detection mode selection
4-C. External input function selection
5. Light emission power selection
6. Display value correction function selection
7. Display reverse selection
8. Display customization selection
9. APC function setting
10. Power save mode setting
11. Key lock level setting
12. Interference prevention function setting
Detection
setting menu
Display
setting menu
System
setting menu
End of basic menu
display
Select the setting by pressing the button.
HIGH SPEED: 33 µs
FINE: 250 µs
TURBO: 500 µs
SUPER: 1 ms
ULTRA: 4 ms
MEGA: 16 ms
(Can be switched when the power
selection switch is set to SEL.)
Select the setting by pressing the button.
Normal sensitivity setting (see page 2)
Percentage(%) calibration (see page 2)
Percentage calibration target value setting
Select the setting by pressing the button.
Can be set between –99 and +99%.
When End is
selected
When StG-Func
is selected
When SEtP
is selectedWhen Std is
selected
1 Power mode (response time) selection
2 Sensitivity setting method selection
DSC
DSC
DSC
DSC
Menu end/continue selection
Select the setting by pressing the button.
Ends the menu.
Configures detection
settings.
(Timer, DSC, etc.)
Configures display
settings.
(Scaling, inversion, etc.)
Configures system
settings.
(APC, Power Save, etc.)
Detection
setting menu
Display
setting menu
System
setting menu
When StG-diSP
is selected
When StG-SYS
is selected
A
Press
MODE
Press
MODE
Press for 3 seconds or longer
MODE
Press
MODE
Press
MODE
.
.
.
.
.
.
.
.
.
.
.
.
Select the setting by pressing the button.
Normal (light intensity) detection mode
Dynamic sensitivity correction mode
(see page 2)
Area detection mode (see page 3)
Detects the rising edge of the received
light intensity (Edge detection mode)
(see page 2)
Detects the falling edge of the received
light intensity (Edge detection mode)
(see page 2)
Timer setting
Configure setting by pressing the button.
Can be set between 0.1 and 9999 ms.
When 1 is selected, On-delay timer is set.
Timer setting 2
Sets the time of Off-delay (One-shot).
Configure setting by pressing the button.
Can be set between 0.1 and 9999 ms.
or
At Timer mode selection,
* other than 1 is selected a
* 1 is selected b
When other
than Timer OFF
is selected
When dSc is
selected
When Edge detection
is selected
When Timer OFF
is selected
When Std or
ArEA is selected
b
a
4 Detection mode selection
3 Timer mode selection
Detection operation selection
Select the setting by pressing the button.
Mainly reflective type
[Light intensity with workpiece >
Light intensity without workpiece]
(The output is ON when the light
enters.)
Mainly transmission type
[Light intensity with workpiece <
Light intensity without workpiece]
(The output is ON when the light
is blocked.)
Correction speed selection
Select the setting by pressing the button.
1 to 3
The correction is made faster as the number
becomes larger. (Select 1 in normal cases.)
Filter time selection
Select the setting by pressing the button.
Select larger number (initial state) in normal
cases. The selectable level depends on the
power modes. (see page 2)
Display scaling target value setting
Select the setting by pressing the button.
The value can be set between 100 and 10000
in unit of 100.
10000 is displayed as .
DSC
DSC
DSC
DSC
DSC
DSC
DSC
DSC
DSC
Select the setting by pressing the button.
Timer OFF
Off-delay
On-delay
One-shot
On-delay Off-delay *1
On-delay One-shot *1
Power mode
hSP
FinE
Turb/SuPr/Ultr/MEGA
Level 1
7.34s
52.43s
104.86s
Level 2
114.7ms
819.2ms
1.64s
Level 3
1.8ms
12.8ms
25.6ms
Press
MODE
Press
MODE
Press
MODE
Press
MODE
Press
MODE
DSC
Press
MODE
Press
MODE
Press
MODE
Press
MODE
When SCAL
is selected
When other
than SCAL
is selected
When using
FS-V31(P)
FS-V32(P)
FS-V31M
FS-V30
When using
FS-V31C(P)
FS-V32C(P)
DSC
Press
MODE
.
.
.
.
.
Select the setting by pressing the button.
Does not use external input.
External calibration
Display scaling
Zero shift
Hold display reset
Light emission stop
4-C External input function selection
(for the connector type only)
.
.
.
.
.
.
.
.
From the basic menu
5
6
  • Page 1
  • Page 2
  • Page 3
  • Page 4
  • Page 5
  • Page 6
/

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Key Features

  • Fiber Optic Sensor
  • Multiple Detection Modes
  • Digital Monitor
  • Flexible Sensitivity Adjustment
  • Various Power Modes
  • Area Detection
  • Edge Detection

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Frequently Answers and Questions

What are the different sensitivity setting methods available with the FS-V31?
The FS-V31 offers three sensitivity setting methods: Normal sensitivity setting, Percentage (%) calibration, and Full auto calibration. Each method provides a unique approach to fine-tuning the device's sensitivity for optimal performance.
How do I configure the power mode of the FS-V31?
The power mode determines the response time of the sensor. You can select from HIGH SPEED, FINE, TURBO, SUPER, ULTRA, and MEGA modes. The selection is made using the MODE button and confirmed by pressing the SET button.
Can I use the FS-V31 in Area Detection Mode?
Yes, the FS-V31 can be used in Area Detection Mode. This mode is particularly suitable for detecting targets within a defined range. You can set upper and lower limit values to determine the desired detection zone.