F2LP-W F2LP-W
2
Ring Sensing Head Detects Moving
Minute Metal Objects
■Sensing a variety of metallic objects
anywhere within the ring
■Sensor heads available with diameters
of 10 mm to 100 mm
■Built-in 40-ms OFF-delay timer
■Amplifier can be surface or track
mounted
■Ready to use; prewired with 3 m (9.8 ft)
coaxial cable
Ordering Information
■SENSOR HEADS
Sensor head (unshielded) Minimum object size Part number
10 mm (0.39 in) 0.3 mm dia. x 0.5 mm steel rod F2LP-W10M
inside dia.
20 mm (0.79 in) 0.3 mm dia. x 1.0 mm steel rod F2LP-W20M
inside dia.
50 mm (1.97 in) 2.0 mm dia. steel ball F2LP-W50M
inside dia.
75 mm (2.95 in) 2.5 mm dia. steel ball F2LP-W75M
inside dia.
100 mm (3.94 in) 3.0 mm dia. steel ball F2LP-W100M
inside dia.
Ring Inductive Prox F2LP-W
■AMPLIFIER
Supply voltage 120/240 VAC, 50/60 Hz
Outputs Relay SPDT, 2 A, 250 VAC or 3 A, 30 VDC
DC solid-state 100 mA max.
Timer functions Normal or 40 ms OFF-delay
Part number F2LP-WK4-US
F2LP-W F2LP-W
3
Specifications
■SENSORS
Part number F2LP-W10M F2LP-W20M F2LP-W50M F2LP-W75M F2LP-W100M
Sensor type Inductive
Body type Unshielded
Detectable object type Metal objects (Moving speed based on natural fall of objects from a height 10 cm above sensor)
Detecting distance 10 mm 20 mm 50 mm 75 mm 100 mm
inside diameter (0.39 in) (0.79 in) (1.97 in) (2.95 in) (3.94 in)
Minimum target Size 0.3 mm dia. 0.3 mm dia. 2.0 mm dia. 2.5 mm dia. 3.0 mm dia.
detecting x 0.5 mm (0.01 in x 1.0 mm (0.01 in (0.08 in) (0.1 in) (0.12 in)
distance dia. x 0.02 in) dia. x 0.04 in)
Type Steel rod Steel ball
Materials Case ABS Aluminum diecast
Sensing face ABS
Mounting Two through holes Two slots Four through holes or two slots
Cable 3 m high-frequency coaxial cable
W eight Approx. 80 g Approx. 220 g Approx. 430 g Approx. 800 g Approx. 1200 g
(2.82 oz) (7.76 oz) (15.17 oz) (28.22 oz) (42.33 oz)
Enclosure ratings UL —
NEMA 1, 2, 4, 12
IEC 144 IEC IP67
Approvals UL —
CSA —
Ambient temperature -25°C to 70 °C (-13°F to 158°F) with no icing
Vibration 10 to 55 Hz, 1.5 mm (0.06 in) double amplitude
Shock Approx. 50 G
■AMPLIFIER
Part number F2LP-WK4-US
Supply voltage 120/240 VAC ±15%, 50/60 Hz
Power (current) consumption 3 VA max.
Required sensors Interchangeable, any diameter F2LP-W ring sensor
Sensitivity Adjustable
Control ouput Relay SPDT, 2 A, 250 VA C or 3 A, 30 VDC
DC 100 mA max.
solid-state
Interval between Relay 75 ms max. (Minimum sensing objects can be detected at intervals specified. Larger objects need
objects longer intervals.)
DC Normal: 75 ms max.; OFF-delay: 125 ms max. (Minimum sensing objects can be detected at intervals
solid-state specified. Larger objects need longer intervals.)
Timer functions NORM (no timer), OFF-delay (transistor output, 40 ms), contact output compensation (40 ms)
Indicators POWER (red LED) and OPERATION (red LED)
Mounting Two threaded holes
W eight Approx. 300 g (10.58 oz)
Enclosure ratings UL 1
NEMA 1
IEC 144 IEC IP30
Ambient temperature -10°C to 55°C (14°F to 131°F) with no icing
Vibration 10 to 55 Hz, 1.5 mm (0.06 in) double amplitude
Shock Approx. 10 G
F2LP-W F2LP-W
4
Operation
■OUTPUT CIRCUIT DIAGRAM
DC Solid-State
Note: 1. The load can be connected as follows:
2. The maximum capacity of the loads is 100 mA,
40 VDC.
■TIMING CHART
Note: 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.
■CONNECTIONS
Note: 1. Ter minal 7 (inter nal circuit 0 V) can be grounded by
grounding the sensor because this terminal is
connected to the metal case of the sensor. The
following terminals are insulated from one another:
sensor input terminals 7 and 8; transistor output
terminals 10 and 11; power supply terminals 1, 2
and 3; and relay output terminals 4, 5 and 6.
2. The sensor cable can be shortened or connected to
another cable, as long as the total length of the
cable is 1.5 to 10 m. Use the following cables for
extensions:
F2LP-W10M, -W20M: Electrostatic capacity
97 nF/km; characteristic impedance 50 ±2Ω.
F2LP-W50M, -W75M, -W100M: Electrostatic
capacity 100 nF/km; characteristic impedance
50 ±2Ω.
Sensing
Output mode
Timer mode
Transistor output
Relay output
OPERATION
indicator
POWER indicator
F2LP-W F2LP-W
5
■OBJECT SIZE VS. FALLING SPEED OF OBJECT
F2LP-W10M F2LP-W20M
Engineering Data
F2LP-W50M F2LP-W75M
F2LP-W100M ■RESIDUAL LOAD VOLTAGE
CHARACTERISTICS
F2LP-WK4-US
F2LP-W F2LP-W
6
Dimensions
Unit: mm (inch)
F2LP-W10M
Mounting holes
■SENSOR HEADS
10
(0.39)
37
(1.46) 20
(0.79)
5 (0.2)
4.1 (0.16) dia. one-
conductor coaxial cable
(length: 3m)
Two 3.5
(0.14) dia.
holes 15
(0.59)
24 (0.94)
15 (0.59)
Two 3.5 dia. holes
F2LP-W20M
Mounting holes
30 (1.18)
Two 4.5 dia. holes
4.1 (0.16) dia. one-conductor
coaxial cable (length: 3m)
16
(0.63)
5 (0.2)
5 (0.2)
65
(2.56) 30
(1.18)
25
(0.98)
50 (1.97) 20 (0.79) dia. hole
Two 4.5 (0.18) dia. holes
30
(1.18)
F2LP-W50M
Mounting holes
94 (3.7)
91 (3.58)
dia.
76 (2.99)
dia.
96
(3.78)
50
(1.97)
50 (1.97) dia. 5.5 (0.22) dia. one-conductor
coaxial cable (length: 3m)
74 (2.91)
110 (4.33)
8 (0.31)
26 (1.02)
8 (0.31)
10
(0.39)
94 (3.7)
6 (0.24)
10
(0.39)
F2LP-W F2LP-W
7
Unit: mm (inch)
F2LP-W75M
Mounting holes
155
(6.10)
90
(3.54)
110
(4.33)
130 (5.12)
10
(0.39)
10
(0.39)
110 (4.33)
Four 7 (0.28)
dia. holes
31.5
(1.24)
10
(0.39)
10
(0.39)
10
(0.39)
75 dia.
(2.95)
5.5 (0.22) dia.,
one conductor
coaxial cable
(length: 3m)
25
(0.98)
16.5
(0.65)
40
3.5 (0.14)
radius
110 (4.33)
20
(0.79)
Four 7 (0.28)
dia. holes
110
(4.33)
110
(4.33)
F2LP-W100M
Mounting holes
Four 7
(0.28) dia.
holes
31.5
(1.24)
10
(0.39)
5.5 (0.22)
dia., one
conductor
coaxial
cable
(length: 3m)
20
(0.79) 16.5
(0.65)
45
170 (6.69)
140 (5.51)
140
(5.51)
185
(7.28)
100
(3.94)
10
(0.39)
20
(0.79)
16
(0.63)
126 (4.96) 3.5 (0.14)
radius
100 (3.94) dia.
Four 7 (0.28)
dia. holes
140
(5.51)
140
(5.51)
F2LP-W F2LP-W
8
■AMPLIFIER UNIT
F2LP-W100M
Mounting holes
75
(2.95)
6.75
(2.66) 74
(2.91) 57.3
(2.26)
66
(2.60)
Nomenclature
Precautions
■EFFECTS OF SURROUNDING METALS
To prevent the sensor from being effected by any metal
objects around it, keep metal objects away from the sensor by
at least the distances indicated in the drawing and table.
Part number Distance lDistance m
F2LP-W10M 100 mm (3.94 in) 100 mm (3.94 in)
F2LP-W20M 100 mm (3.94 in) 20 mm (0.79 in)
F2LP-W50M 150 mm (5.91 in) 30 mm (1.18 in)
F2LP-W75M 200 mm (7.87 in) 40 mm (1.57 in)
F2LP-W100M 300 mm (11.81 in) 50 mm (1.97 in)
POWER indicator:
Lit when power is on.
OPERATION indicator:
Lit when sensing objects.
Sensitivity selector
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.
Sensitivity adjustor
Sensor selector:
F2LP-W10M, F2LP-W20M: Select dia. of 10
to 20
F2LP-W50M, F2LP-W75M, F2LP-W100M:
Select dia. of 50 to 100
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.
Note: 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
9
If a metal object is close to a sensor coil, the sensor mounted
on a metal base may malfunction. Keep metal away from the
coil by at least the distance indicated.
Unit: mm (inch)
F2LP-W10M
F2LP-W20M
F2LP-W50M
F2LP-W75M
F2LP-W100M
Note: To mount the F2LP-W75M on a flange, open a hole of at
least 112 mm (4.41 in) diameter minimum.
Note: To mount the F2LP-W75M on a flange, open a hole of at
least 150 mm (5.91 in) diameter minimum.
■MUTUAL INTERFERENCE
To prevent mutual interference between two sensors, be sure
to ground the ground terminals of the sensors and separate
the sensors at a distance greater than that shown in the table.
Part number Facing (l 1) Parallel (l 2)
F2LP-W10M 500 mm (19.69 in) 500 mm (19.69 in)
F2LP-W20M 500 mm (19.69 in) 500 mm (19.69 in)
F2LP-W50M 500 mm (19.69 in) 500 mm (19.69 in)
F2LP-W75M 750 mm (29.53 in) 750 mm (29.53 in)
F2LP-W100M 1000 mm (39.37 in) 1000 mm (39.37 in)
■ADDITIONAL
Do not use the sensor immediately after power is turned on.
The sensor needs an interval of 1 to 2 seconds after power is
on to function normally and sense objects.
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.
Unit: mm (inch)
F2LP-W F2LP-W
OMRON ELECTRONICS LLC OMRON CANADA, INC.
One East Commerce Drive 885 Milner Avenue
Schaumburg, IL 60173 Scarborough, Ontario M1B 5V8
1-800-55-OMRON 416-286-6465
Cat. No. CEDSAX4 11/01 Specifications subject to change without notice. Printed in the U.S.A.
OMRON ON-LINE
Global - http://www.omron.com
USA - http://www.omron.com/oei
Canada - http://www.omron.com/oci
