Inductive Proximity Sensors
2–163
Description
Bulletin
871FM inductive flat pack
proximity sensors are self-contained,
general purpose, solid state devices
designed to sense the presence of
ferrous and non-ferrous metal objects
without touching them.
These sensors are ideal for applications
in which space is limited. They are
available in three compact sizes.
Connection options include 3-conductor
PVC cable or pico quick-disconnect.
Features
SCable or quick-disconnect styles
S
Short circuit protection (DC models)
S
Overload protection (DC models)
ST
ransient noise protection
SFalse pulse protection
S
Reverse polarity protection (DC
models)
S
CE marked for all applicable
directives
Styles
AC 2-wire
page 2–164.
. . . . . . . . . . . . .
DC 3-wire
page 2–166
. . . . . . . . . . . . . .
Accessories
Quick-Disconnect Cables page 5–1
. . .
General Information
Metric/English
Conversion Chart
page 11–1.
. . . . . . . .
Bulletin
871FM
Miniature Flat Pack Style
Inductive Proximity Sensors
2–164
871FM AC Cable Style
28 x 16 x 11mm
page
2–165
871FM AC Cable Style
40 x 26 x 12mm
page
2–165
Features
S2-wire
operation
S2-conductor connection
S90–250V AC
S
Normally open or normally closed
output
SFalse pulse and transient noise
protection
S
CE marked for all applicable
directives
Specifications
Correction Factors
Target Material Correction Factor
Steel 1.0
Stainless
Steel
0.85
Brass 0.55
Aluminum 0.50
Copper 0.45
871FM
2-W
ire AC
Miniature Flat Pack Style
Load Current
Minimum Load Current
Leakage Current
Operating Voltage
Voltage Drop
Repeatability
Hysteresis
False Pulse Protection
Transient Noise Protection
Approval
Enclosure
Connections
LED
Operating Temperature
Shock
Vibration
28 x 16 x 11mm
≤100mA
4mA
<2mA
90–250V AC
≤15V
≤5%
10% typical
Incorporated
Incorporated
CE marked for all applicable directives
NEMA 4, IP67 (IEC 529)
Plastic
Cable: 2m (6.5ft) length
2-conductor PVC
Orange: Output Energized
–25°C to +70°C (–13°F to +158°F)
30g, 11ms
55Hz, 1mm amplitude, 3 planes
40 x 26 x 12mm
≤180mA
Inductive Proximity Sensors
2–165
Selection Guide
Sensor Size
Sensing
Direction
Nominal Sensing Distance
mm (inches) Shielded
Output
Configuration
Switching
Frequency (Hz)
Catalog Number
Cable Style
28 x 16 x 11mm
2(008)
Y
N.O. 871FM–A2N11–A2
40 x 26 x 12mm
Side
2 (0.08)
Y
N.C. 10 871FM–A2C12–A2
40 x 26 x 12mm
4 (0.16)
N N.O. 871FM–A4N12–A2
LED
28
(1.10)
22.2
(0.87)
10.3
(0.41)
16
(0.63)
3.1
(0.12)
10.5
(0.41)
5.5
(0.22)
Load
Black
Blue
Note:
Load can be switched to black wire.
Wiring Diagram
Cable
Style
Dimensions—mm (inches)
Cable
Style
28 x 16 x 1
1mm
6
(0.24)
5
(0.20)
4
(0.16)
LED
26
(1.02)
40
(1.57)
16
(0.63)
4
(0.16)
4
(0.16)
M3
40 x 26 x 12mm
Load
Black
Blue
Note:
Load can be switched to black wire.
12
(0.47)
6
(0.24)
Dia.
ÈÈÈ
ÈÈÈ
ÈÈÈ
3.2
(0.13)
3.3
(0.13) Dia.
Mounting Hole
Dimensions
ÈÈ
ÈÈ
ÈÈ
871FM
2-W
ire AC
Miniature Flat Pack Style
Inductive Proximity Sensors
2–166
871FM DC Cable Style
28 x 16 x 11mm
page
2–167
871FM DC Pico
Quick-Disconnect Style
28 x 16 x 11mm
page
2–167
871FM DC Cable Style
40 x 26 x 12mm
page
2–167
871FM DC Pico
Quick-Disconnect Style
40 x 26 x 12mm
page
2–167
871FM DC Cable Style
25 x 50 x 10mm
page
2–167
871FM DC Pico
Quick-Disconnect Style
25 x 50 x 10mm
page
2–167
Specifications
Features
S3-wire
operation
S3-conductor or 3-pin connection
S10–30V DC
S
10–60V DC (25 x 50 x 10mm only)
S
Normally open or normally closed
output
S
False pulse, transient noise, reverse
polarity
, short-circuit and overload
protection
S
CE marked for all applicable
directives
Correction Factors
Target Material Correction Factor
Steel 1.0
Stainless
Steel
0.85
Brass 0.55
Aluminum 0.50
Copper 0.45
871FM
3-W
ire DC
Miniature Flat Pack Style
28 x 16 x 11mm
<11mA
≤200mA
<100µA
10–30V DC
≤1.8V
≤5%
10% typical
Incorporated
Incorporated
Incorporated
Incorporated
Incorporated
NEMA 4, IP67 (IEC 529)
Plastic
Cable: 2m (6.5ft) length
3-conductor PVC
Quick-Disconnect: 3-pin pico style
Yellow: Output Energized
–25°C to +70°C (–13°F to +158°F)
30g, 11ms
55Hz, 1mm amplitude, 3 planes
Supply Current
Load Current
Leakage Current
Operating Voltage
Voltage Drop
Repeatability
Hysteresis
False Pulse Protection
Transient Noise Protection
Reverse Polarity Protection
Short Circuit Protection
Overload Protection
Enclosure
Connections
LED
Operating Temperature
Shock
Vibration
40 x 26 x 12mm
<11mA
≤200mA
<100µA
10–30V DC
≤1.8V
25 x 50 x 10mm
<8mA
≤200mA
<100µA
10–60V DC
≤2.5V
Inductive Proximity Sensors
2–167
Selection Guide
Sen
s
ing
Nomin l Sen
s
ing Di
s
t nce
Otpt
Switching
Catalog Numbers
Sensor Size
S
ens
i
ng
Direction
N
om
i
na
l
S
ens
i
ng
Di
stance
mm (inches) Shielded
O
utput
Configuration
S
w
i
tc
hi
ng
Frequency (Hz) Cable Style Pico QD Style
28x16x11mm
2(008)
N.O. PNP
600
871FM–D2NP11–E2 871FM–D2NP11–P3
28 x 16 x 11mm
2 (0.08)
N.C. PNP
600
871FM–D2CP11–E2 871FM–D2CP11–P3
NO
NPN 871FM–D2NN12–E2 871FM–D2NN12–P3
2(008)
Y N.O.
PNP
800
871FM–D2NP12–E2 871FM–D2NP12–P3
2 (0.08)
NC
NPN
800
871FM–D2CN12–E2 —
40 x 26 x 12mm
N.C.
PNP 871FM–D2CP12–E2 —
40 x 26 x 12mm
NO
NPN 871FM–D4NN12–E2 871FM–D4NN12–P3
S
ide
4(016)
N.O.
PNP
400
871FM–D4NP12–E2 871FM–D4NP12–P3
Side
4 (0.16)
N
NC
NPN
400
871FM–D4CN12–E2 —
N.C.
PNP 871FM–D4CP12–E2 —
NO
NPN 871FM–D5NN25–E2 —
5 (0.20)
Y
N.O.
PNP 500 871FM–D5NP25–E2 871FM–D5NP25–P3
25 x 50 x 10mm
()
N.C. PNP 871FM–D5CP25–E2 —
25 x 50 x 10mm
NO
NPN 871FM–D8NN25–E2 —
8 (0.31)
N
N.O.
PNP 200 871FM–D8NP25–E2 871FM–D8NP25–P3
()
N.C. PNP 871FM–D8CP25–E2 —
Recommended Standard QD Cordset (–2 = 2m (6.5ft))
889P–F3AB–2
QD Cordsets and Accessories
Description Page Number
Other Cordsets Available 5–52
Terminal Chambers 5–19
Dimensions—mm (inches)
Cable
& Pico QD Style
28
x 16 x 1
1mm
LED
28
(1.10)
22.2
(0.87)
10.3
(0.41)
16
(0.63)
10.5
(0.41)
5.5
(0.22)
3.1
(0.12)
Wiring Diagrams
Cable
Style
Normally Open
10–30V
DC
10–30V DC
NPN (Sinking) PNP (Sourcing)
+–
Load Blue
+–
Black
+–
Load
Brown –+
Black
Blue
Brown
Normally Closed
10–30V DC
PNP (Sourcing)
+–
Load
Brown –+
Black
Blue
Pico
QD Style
Normally
Open or Normally Closed
NPN (Sinking)
4
31
–
Load
+
10–30V
DC
+–
4
31
+
Load
–
–+
10–30V DC
PNP (Sourcing)
871FM
3-W
ire DC
Miniature Flat Pack Style
Inductive Proximity Sensors
2–168
Dimensions—mm (inches)
Cable
& Pico QD Style
40
x 26 x 12mm
Wiring Diagrams
Cable
Style
Normally Open
10–30V
DC
10–30V DC
NPN (Sinking) PNP (Sourcing)
+–
Load
Blue
+–
Black
+–
Load
Brown –+
Black
Blue
Brown
Normally Closed
10–30V DC
10–30V DC
NPN (Sinking) PNP (Sourcing)
+–
Load Blue
+–
Black
+–
Load
Brown –+
Black
Blue
Brown
Pico
QD Style
Normally Open
4
31
–
Load
+
10–30V
DC
+–
NPN (Sinking) PNP (Sourcing)
4
31
+
Load
–
–+
10–30V DC
Cable
& Pico QD Style
25
x 50 x 10mm
Cable
Style
Normally Open
NPN (Sinking) PNP (Sourcing)
+
10–60V DC
–
Load
Blue
+–
Black
+–
Load
Brown –+
Black
Blue
10–60V DC
Brown
Normally Closed
NPN (Sinking) PNP (Sourcing)
+
10–60V DC
–
Load
Blue
+–
Black
+–
Load
Brown –+
Black
Blue
10–60V DC
Brown
Pico
QD Style
PNP (Sourcing)
4
31
+
Load
–
–+10–60V
DC
871FM
3-W
ire DC
Miniature Flat Pack Style
5
(0.20)
4
(0.16)
26
(1.02)
4
(0.16)
4
(0.16)
6
(0.24)
LED
40
(1.57) 16
(0.63)
M3
12
(0.47)
6
(0.24)
Dia.
ÈÈÈ
ÈÈÈ
ÈÈÈ
3.2
(0.13)
3.3
(0.13) Dia.
Mounting Hole
Dimensions
ÈÈ
ÈÈ
ÈÈ
LED
10
(0.39)
50
(1.97)
8
(0.31)
15
(0.59)
ÈÈÈ
ÈÈÈ
25
(0.98)
10
(0.39)
7.3 (0.29)
Dia.
4.3 (0.17)
Dia.
3
(0.12)
4
(0.16)