OMRON F2LP

Inductive Ring Sensor
F2LP-W
Ring Sensing Head for Detecting
Moving Minute Metallic Objects
Detects moving metallic objects of any shape
anywhere in the ring.
Sensor Heads with 10-mm to 100-mm diameters
available.
Incorporates a 40-ms OFF-delay timer.
Amplifier Unit with DIN-track mounting hooks
available.
Ordering Information
Sensor Heads
Sensor Head (non-shielded)
Min. object size
Model
10 dia.
0.3 dia. x 0.5 mm steel rod
F2LP-W10M
20 dia.
0.3 dia. x 1.0 mm steel rod
F2LP-W20M
50 dia.
2.0-dia. steel ball
F2LP-W50M
75 dia.
2.5-dia. steel ball
F2LP-W75M
100 dia.
3.0-dia. steel ball
F2LP-W100M
Amplifier Unit
Power supply
120/240 VAC, 50/60 Hz
Output
Relay:
DC Solid-state:
SPDT, 2 A, 250 VAC or 3 A, 30 VDC
Photocoupler 100 mA max.
Model
F2LP-WK4-US
1
F2LP-W
F2LP-W
Application Examples
Counting Falling Screws
Tank
F2LP-WK4-US
CQM1
F2LP-W50M
Specifications
Ratings/Characteristics
Sensor Units
Model
F2LP-W10M
F2LP-W20M
10 dia.
Ferrous or non-ferrous moving metal object (Sensitivity lowers with non-ferrous metals).
Min. object size
0.3 dia. x 0.5 mm
steel rod
Ambient temperature
Operating: --25C to 70C (with no icing)
Ambient humidity
Operating: 35% to 95%
Insulation resistance
50 Mτ min.
Head case and shield (0 V) are electrically connected.
Dielectric strength
1,000 VAC for
1 min.
Head case and shield (0 V) are electrically connected.
Vibration resistance
Durability: 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y, Z directions
Shock resistance
Durability: 500 m/s2 (approx. 50G) for 3 times each in X, Y, Z directions
Cable (see note 2)
3 m (high-frequency coaxial cable)
Weight
Approx. 80 g
Enclosure rating
IEC IP67
Material
Case
Heat-resisting
ABS resin
Sensing
surface
Heat-resisting ABS resin
Approx. 220 g
2.0-dia. steel ball
Approx. 430 g
75 dia.
F2LP-W100M
Sensing objects (see note 1)
0.3 dia. x 1.0 mm
steel rod
50 dia.
F2LP-75M
Sensing area
Note:
20 dia.
F2LP-W50M
2.5-dia. steel ball
Approx. 800 g
100 dia.
3.0-dia. steel ball
Approx. 1,200 g
Aluminum diecast
1. The moving speed is based on the natural fall of objects from a height 10 cm above the Sensor.
2. The cable can be shortened or connected to another cable, as long as the total length of the cable is from 1.5 to 10 m. Use the
following cables for extension: F2LP-W10M, F2LP-W20M: Electrostatic capacity 97 nF/km; characteristic impedance 502 τ
F2LP-W-50M, F2LP-W75M, F2LP-W100M: Electrostatic capacity 100 nF/km; characteristic
impedance 502 τ
2
F2LP-W
F2LP-W
Amplifier Unit
Supply voltage
120/240 VAC 15%, 50/60 Hz
Power consumption
3 VA max.
Sensitivity adjustment
Selector and variable resistor
Timer
DC solid-state
Normal or 40-ms OFF delay. (selectable)
Relay
One-shot, 40 ms (fixed)
DC solid-state
Normal: 75 ms max.; OFF-delay: 125 ms max. (Minimum sensing objects can be detected at
intervals specified. Larger objects need longer intervals.)
Relay
75 ms max. (See note for DC solid-state sensing interval.)
DC solid-state
100 mA, 40 VDC max. photocoupler output; residual voltage: 2 V max. (Refer to Engineering Data.)
Relay
Resistive load of 2 A at 250 VAC or 3 A at 30 VDC
Sensing
interval
Control
output
Compatibility with Sensor
Heads with different
diameters
Can be connected to F2LP-WjM Sensors with a diameter of 10, 20, 50, 75, or 100 (switchable).
Compensation for cord length
Switch setting
Output form
NO or NC (switchable)
Indicators
Power and operation
Ambient temperature
Operating: --10C to 55C (with no icing)
Ambient humidity
Operating: 35% to 85%
Insulation resistance
50 Mτ min. (at 500 VDC) between all live terminals and non-current carrying bare metal parts, and
between all primary terminals (for power supply) and all secondary terminals (for non-contact output
and Sensor)
Dielectric strength
1,500 VAC, 50/60 Hz for 1 minute between all live terminals and non-current carrying bare metal
parts, between all primary terminals (for power supply) and all secondary terminals (for non-contact
output and Sensor), and among all contact output terminals
Vibration resistance
Destruction: 10 to 55 Hz, 1.5 mm double amplitude for 2 hours in X, Y, Z directions respectively
Shock resistance
Destruction: 100 m/s2 (approx. 10G) for 3 times in X, Y, Z directions respectively
Enclosure ratings
IEC IP30
Weight
Approx. 300 g
Engineering Data
Object Size vs. Falling Speed of Object (Typ.)
F2LP-W10M
F2LP-W20M
Height
Object
Height
Height (m)
Object
Speed (V m/s)
Iron
Height (m)
Speed (V m/s)
Iron
Aluminum
Aluminum
Object size (dia. x 0.5 mm)
Object size (dia. in 1 mm)
3
F2LP-W
F2LP-W
F2LP-W50M
F2LP-W75M
Iron
Brass
Brass
Sensing area
Object
Height
Height (m)
Height (m)
Speed (V m/s)
Iron
Speed (V m/s)
Height
Object
Sensing area
Object size (dia. in mm)
Object size (dia. in mm)
Residual Load Voltage Characteristics (Typ.)
F2LP-W100M
F2LP-WK4-US
Iron
Brass
Load voltage (v)
Height
Speed (V m/s)
Height (m)
Object
Object size (dia. in mm)
Load current (mA)
Operation
Amplifier Unit
Sensor selector:
F2LP-W10M, F2LP-W20M: Select dia.
of 10 to 20
F2LP-W50M, F2LP-W75M,
F2LP-W100M: Select dia. of 50 to 100
POWER indicator:
Lit when power is on.
OPERATION indicator:
Lit when sensing objects.
Sensitivity selector
Compensation selector: Select the
position according to the cable length.
When cutting or extending the cable,
the length should be between 1.5 m
and 10 m.
Timer mode selector (see note 1)
Output mode selector (see note 2)
Frequency selector:
If induction or other mutual interference is experienced when using more than one Sensor, set the
Sensor to different frequencies.
--US
Note:
240 VAC
120 VAC
Sensitivity adjustor
4
1. Timer mode selector: NORM:
No timer; TIMER: OFF-delay
transistor output (40 ms)
2. Output mode selector:
NO: Both transistor output and
relay output ON when sensing
objects; NC: Transistor output
OFF and relay output ON
when sensing objects
F2LP-W
F2LP-W
Timing Chart
Object present
No object
Sensing
NO
NC
Output mode
Timer mode
OFF-delay
NORMAL
Transistor output
ON
OFF
Relay output
ON
OFF
OPERATION
indicator
Lit
Not lit
POWER indicator
Lit
Not lit
Note:
A: 40 ms (OFF-delay)
B: 40 ms (per detection)
When power is off
1. Relay outputs are ON when objects are sensed (when objects
pass through the Sensor head)
2. Each relay output is ON for 40
ms minimum regardless of the
position of the timer mode selector.
Dimensions
Note:
All units are in millimeters unless otherwise indicated.
Sensor Heads
F2LP-W10M
F2LP-W20M
10-dia. hole
20-dia. hole
4.1 dia., one-conductor coaxial
cable (length: 3 m)
Two,
3.5-dia.
holes
4.1 dia., oneconductor coaxial
cable (length: 3 m)
Two, 4.5-dia. holes
5
F2LP-W
F2LP-W
F2LP-W75M
F2LP-W50M
91 dia.
76 dia.
50 dia.
Four,
7-dia.
holes
5.5 dia., oneconductor
coaxial cable
(length: 3 m)
75 dia.
5.5 dia.,
one-conductor coaxial
cable
(length:
3 m)
3.5 radius
Amplifier Unit
F2LP-W100M
F2LP-WK4-US
Mounting Holes
Two, M4 holes
Four, 7-dia.
holes
100 dia.
5.5 dia.,
one-conductor
coaxial
cable
(length:
3 m)
3.5 radius
6
F2LP-W
F2LP-W
DC Solid State Output Stage Circuit Diagram
2.2
τ
Note:
1. The load can be connected as follows:
Load
47 V
Load
2. The maximum capacity of the load is
100 mA, 40 VDC.
Main circuit of
Sensor
Connections
Note:
Conductor
Shielding
Terminal 7 (internal circuit 0 V) can be grounded by
grounding the Sensor, because this terminal is
connected to the metal case of the Sensor. Sensor
input terminals 7 and 8, transistor output terminals
10 and 11, power supply terminals 1, 2, and 3, and
relay connecting terminals 4, 5, and 6 are insulated
from one another.
100 VAC
200 VAC,
50/60 Hz
Precautions
Please read the following carefully to ensure effective and proper
use of the F2LP-W.
Influence of Metals at Close Range
 The Sensor can malfunction if there is a moving
metal object
around the Sensor. Keep metal objects away from the Sensor by
at least the distances indicated in the following drawing and
table.
Model
Distance l
Distance m
F2LP-W10M
100
100
F2LP-W20M
100
20
F2LP-W50M
150
30
F2LP-W75M
200
40
F2LP-W100M
300
50
Moving metal
object
m
l
l
7
F2LP-W
F2LP-W

The Sensor mounted on a metal base can malfunction if there is
a metal object close to the coil of the Sensor. Keep metal away
from the coil by at least the distances indicated in the following
drawings.
F2LP-W10M
Metal
Mutual Interference
 When using more than one Sensor, ground the ground terminals
of the Sensors and then separate the Sensors one another by at
least the distances indicated in the following drawings. The
distances in parentheses apply when the Sensors are set to
different frequencies.
Metal
l1
10 mm
max.
F2LP-W20M
Metal
Facing
each other
Metal
l2
19 mm max.
In
parallel
F2LP-W50M
Metal
Metal
Model
11 mm max.
F2LP-W75M
112 dia.
min.
Note:
34
mm
max.
To mount the F2LP-W75M on a flange, open
a hole of at least 112 dia. min.
Parallel (l 2)
F2LP-W10M
500 (100)
500 (100)
F2LP-W20M
500 (100)
500 (100)
F2LP-W50M
500 (100)
500 (100)
F2LP-W75M
750 (150)
750 (150)
F2LP-W100M
1,000 (200)
1,000 (200)
Others
 Do not use the Sensor immediately after power is on, since the
Metal
Metal
Facing (l 1)
Sensor needs an interval of 1 to 2 seconds after power is on to
function normally and sense objects.
Metal

To maintain noise resistance when connecting a Sensor cable to
the Amplifier Unit terminals, always use a cable with a conductor
thickness of no more than 10 mm.
F2LP-W100M
10 mm max.
Metal
Note:
Metal
150
dia.
min.
25
mm
To mount the F2LP-W100M on a flange, open
a hole of at least 150 dia.
Sensor
Metal
Sensor cable
Amplifier
Unit

Only one pulse (40 ms) will be output when the sensing object is
stationary or if the sensing object is always present such as the
case when line breakage is detected.

When using the Sensor at a high level of sensitivity, be careful
not to touch or come in contact with the Sensor because any
contact with the sensing surface will be detected.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. D32-E1-2
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Systems Components Division H.Q.
28th Fl., Crystal Tower Bldg.
1-2-27, Shiromi, Chuo-ku,
Osaka 540 Japan
Phone: 06-949-6012 Fax: 06-949-6021
8
Printed in Japan
0997-0.5M (0590) a