Keyence FS-V33, FS-V33P, FS-V34, FS-V34P, FS-V33C Instruction Manual

1

DIGITAL FIBER SENSOR 2-OUTPUT TYPE

FS-V33(P)/V34(P)/V33C(P)/V34C(P)

Instruction Manual

Read this manual before using the product in order to achieve maximum performance.
Keep this manual in a safe place after reading it so that it can be used at any time.

Precautions on Regulations and Standards

 UL Certificate

This product is an UL/C-UL Listed product.

• UL File No. E301717

• Category NRKH,NRKH7

• Enclosure Type 1 (Based on UL50)

Be sure to consider the following specifications when using this product as an UL/
C-UL Listed Product.

• Use the power supply with Class 2 output defined in NFPA70 (NEC: National
Electrical Code).

• Power supply/ Control input/ Control output circuits shall be connected to a sin­gle Class 2 source only.

• Use with the over current protection device which is rated 24V or more and not
more than 2A.

Option (Sold Separately)

Mounting bracket End unit Socket cable
(main unit)

Dedicated for FS-V33C(P)/34C(P)

OP-73880 OP-26751

OP-73864 (cable length: 2 m)

(a set of two)

OP-73865 (cable length: 10 m)

Part Names

Output Circuit Diagram

FS-V33(C)/34(C)

FS-V33 (C)P/V34(C)P

Input Circuit Diagram

FS-V33/34

FS-V33P/34P

Socket Cable (Sold Separately for FS-V33C (P)/V34C (P))

 Connecting the Socket Cable

1 Connect the socket to the pin on the

amplifier.

2 Turn the fixing ring on the socket clockwise to fix the socket.

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 illus­tration.

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.

Warning

• This product is just intended to detect the object(s). Do not use this product for
the purpose to protect a human body or a part of human body.

• This product is not intended for use as explosion-proof product. Do not use this
product in a hazardous location and/or potentially explosive atmosphere.

• 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.

12

1

2

DSC

1

2

DSC

1

2

Operation status indicators (output 1)
Operation status indicators (output 2)

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 (MODE)

Channel selection

Expansion protective cover

Expansion connector

Output selector (L/D ON)

*

* FS-V33 (P)/34(P) is a cable, and FS-V33C(P)/34C(P) is a M8 connector.

123

4

(1) 12-24 VDC

(FS-V33C/V33CP only)

(2) Control output 2

(3) 0 V (FS-V33C/V33CP only)

(4) Control output 1

Pin assignment of the

connector type

Black: control output 1
White: control output 2

0 V

12 to 24 VDC

Brown

*

Black/white

Sensor main circuit

Overcurrent protection circuit

Load

Blue

*FS-V33 only

Black: control output 1
White: control output 2

Brown

Blue

*

Black/white

0 V

12 to 24 VDC

Sensor main circuit

Overcurrent protection circuit

Load

*FS-V33P only

3.3 VDC

Blue*

Pink (input)

(Short-circuit current
1 mA or less)

PLC, etc.

0 V

Sensor main circuit

* FS-V33 only

Brown*

Pink (input)
(Short-circuit
current 2 mA
or less)

PLC, etc.

12 to 24 VDC

Sensor main circuit

* FS-V33P only

Pin and wire color table

Connected pin

No.

Core wi re

cover color

(1) Brown

(2) White

(3) Blue

(4) Black

3

412

OP-73880

OP-26751 (a set of two)

96M11292

2

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 th in 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.

External Input

1

Signals can be input externally by selecting an external input function (page 5, No. 5).

2

The signal can be accepted by short-circuiting the pink wire for 2 ms or more as
shown below for each model (20 ms for OFF).

* FS-V33/V33P 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 5, No. 5) and display scaling
(page 6, No. 7).The following is the example when using the % calibration.

Making Sensitivity Settings

 Two-point Calibration

In this mode, the setting value 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 model, and with a
workpiece in the case of the through-beam or retro-reflective model.

Press the SET button for three seconds in the state as shown in the above figure.
(Release the button when SET flashes.) The setting value is set slightly higher than
the received light intensity at the time of setting the sensitivity.

 Full Auto Calibration

In this mode, the setting value will be set to the mean value of the maximum and
minimum incident values 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 flashes.

Fine-adjusting Sensitivity

The setting value can be directly changed by pressing the manual button.

Cable outer dia. Adapter Appearance

φ1.3

Adapter A

(OP-26500)

φ1.0

Adapter B

(OP-26501)

Fiber insertion sign

Transmitter

Receiver

Single-core fiber

Multi-core fiber

Brown *

Blue *

Pink

+V

0V

Brown *

Blue *

Pink

+V

0V

FS-V33/V34 FS-V33P/V34P

Input OFF

Input ON

% calibration Display scaling

3 seconds

or less

Input OFF

Input ON

% calibration% calibration

3 seconds or more

When extended display (page 6, No. 9) 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

2

1

Workpiece

DSC

When the setting is completed,
the setting value is displayed.

2

1

DSC

2

1

3 sec or longer

Reflective

Thrubeam

DSC

2

1

Workpiece

When the setting is completed,
the setting value is displayed.

DSC

2

1

Workpiece

DSC

2

1

When the setting is completed,
the setting value is displayed.

Edge

Workpiece

DSC

122

1

3

Percentage Calibration

This is a calibration method that can set the setting value by percentage with ref­erence 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 5, 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.

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 5, 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. (Set at page 5, No. 4)

 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 work­piece, fine-adjust the setting value to a higher number.

 Operation When Switching Outputs

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 5, 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 setting value is less
than or equal to the lower limit setting 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 target value.

1 When selecting a display value correction function (page 6, No. 7), select the

display scaling function, and set the target value. (The explanation here deals
with the case where the target value is set to 2000.)

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 display changes as follows, and the target value (which is 2000) to be set
as a scale is displayed.

Ø

The scaled value is displayed.

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.

• External input can be used when using FS-V33(P)/34(P) (page 5, No.5).

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 6, No.7), 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.

• External input can be used when using FS-V33(P)/34(P) (page 5, No.5).

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 state589999

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.

DSC

122

1

Press

Press (2) within 5 seconds
after pressing (1).

(1)

(2)

122

When Area, Limit setting,
Counter, or Alarm is selected,
the selection options are
NO and NC.

DSC

1

DSC

DSC indicator

122

1

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 operate the unit to check whether the values are valid.

Power mode Minimum value Maximum value

If the value exceeds the
range,

'TT

is displayed

and scaling is performed up
to the possible range.

HIGH SPEED Approx. 1/20 times Approx. 16 times

FINE Approx. 1/20 times Approx. 16 times

TURBO Approx. 1/20 times Approx. 16 times

SUPER Approx. 1/40 times Approx. 8 times

ULTRA Approx. 1/160 times Approx. 2 t imes

MEGA Approx. 1/320 times Approx. 1 time

HI: Upper limit setting value

LO: Lower limit setting value

ON

OFF

OFF

Received light

intensity

DSC

122

1

DSC

122

1

DSC

122

1

DSC

122

1