1

DUAL DIGITAL FIBER

SENSOR

FS-V21/21G/21R(P)/21X

Instruction Manual

1. Safety Precautions

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 100 VAC or a higher volt-

age is applied.

Check that all the accessories are ready before use.

• Accessories

Instruction manual (x 1)

Mounting bracket (x 1)

2. Part Names

Operation indicator*

Digital monitor

Preset value (PV)

green indicator

Current value (CV)

red indicator

Dust cover

Fiber lock lever

Set button

Manual button

Mode button

Expansion

protective cover

Expansion

connector

Output selector

Cable

3. Mounting Unit

G DIN Track Mounting

1) As shown in the illustration, engage

the claw on the lower side of the

unit and the DIN rail, press the unit

in the direction shown by arrow

➀,

and move down the unit in the di-

rection shown by arrow

➁.

2) When dismounting the unit, press

the unit in the direction shown by

arrow

➀ and move up the unit in

the direction shown by arrow

➂.

G Using Mounting Bracket (accessory)

• Attach the unit to the mounting

bracket, mount them together, and

secure them with two M3 screws

as shown in the illustration.

???

96M0746

4. Connecting Fiber Unit

Fiber insertion sign

1) Open the dust cover in the di-

rection shown by arrow

➀.

2) Move down the fiber lock lever

in the direction shown by arrow

➁.

3) Insert a fiber unit into the fiber

insertion holes to a length of the

fiber insertion sign (i.e., approxi-

mately 14 mm).

4) Move up and return the fiber

lock lever in the direction shown

by the arrow

➃.

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.

Cable outer dia.

Adapter

Appearance

ø1.3

Adapter A

ø1.0

Adapter B

• 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.

Single-core fiber

Multi-core fiber

Transmitter

Receiver

5. I/O Cricuit

Refer to the following I/O circuit diagram when connecting the unit to pe-

ripheral devices.

G FS-V21/21G/21R/21X

G FS-V21RP

Max. 100 mA

0 VDC

12 to 24 VDC

Control output

Brown

Blue

Black

Load

5 to 40 VDC

Max. 100 mA

0 VDC

12 to 24 VDC

Control output

Brown

Blue

Black

Load

* The operation indicator of the FS-V21X (infrared model) will not be lit.