L25 Incremental Optical Encoder
Shaft Diameter:
1/4” nominal
Flat On Shaft:
0.80 long x 0.03 deep
Shaft Loading:
up to 5 lbs. axial and 8 lbs. radial
Shaft Runout:
.0005 T.I.R. maximum
Starting Torque at 25°C:
0.07 in-oz typical, 0.12 in-oz maximum without sealed
bearings; 0.50 in-oz typical, 1.0 in-oz maximum with sealed bearings
Bearings:
Class ABEC 5
Shaft material:
416 stainless steel
Bearing Housing:
Die cast aluminum with iridite finish
Cover:
Drawn aluminum, 0.060” wall, protective finish standard. Die cast aluminum
with protective finish for EM, SM, ECS and SCS terminations
Bearing Life:
1 X 10
9
revs (6,700 hrs at 2500 RPM)
Maximum RPM:
10,000
Moment of Inertia:
4.1 x 10
-4
oz-in-sec
2
Weight:
13 oz. typical
Mechanical Specifications
Electrical Specifications
The L25 is a lighter duty version of BEI’s H25 optical encoder.
Incorporating the same high quality optics and electronics as the H25,
the L25 also offers low starting torque. Other features include ABEC
5 bearings, EMI shielding, a 1/4” diameter stainless steel shaft and
a drawn aluminum cover. Typical applications include use with light
machine tools, test and laboratory instrumentation, the biomedical
industry and flow metering.
Code:
Incremental
Cycles Per Shaft Turn:
1 to 28,800
Voltage/Output:
(see note 5)
15V/V: Line Driver, 5–15 VDC in, Vout = Vin
28V/V: Line Driver, 5–28 VDC in, Vout = Vin
28V/5V: Line Driver, 5–28 VDC in, Vout = 5 VDC
28V/OC: Open collector, 5–28 VDC in, OCout
Current Requirements:
TTL: 175 mA maximum 125 mA typical
Output Format:
2 channels in quadrature = 27º electrical typical. Optional index
is typically gated 1/2 cycle wide (see figure 1)
Protection Level:
Reverse, overvoltage and output short circuit (4469, 7272 only)
Frequency Response:
100 kHz (see note 7), up to 800 KHz with interpolation option
Output Terminations:
(see table 1)
Environmental Specifications
Enclosure Rating:
NEMA 2 (IP43)
Temperature:
Operating, 0º to 70º C; extended temperature testing available
(see note 8); storage; -25º to 90º C
Shock:
50 g’s for 11 msec duration
Vibration:
5 to 2000 Hz @ 20 G’s
Humidity:
98% RH without condensation
NOTES & TABLES:
All notes and tables referred to in the text can be found on the
back of this page.
Model L25 Ordering Options
L25
TYPE
:
L = Heavy Duty
25 = 2.500” Dia.
FoR ASSiSTANCe CAll
800-350-2727
Use this diagram, working from left to right to construct your model number (Example: L25G-F3-SB-2000-ABZC-28V/V-SC18).
G
OPTIONAL FACE
MOuNTS
CYCLES PER TuRN:
F1, F2, F3, or F4
Blank = None
(Enter Cycles)
See table 2
HOuSING CONFIG. LETTER: SHAFT SEAL CONFIGuRATION:
G=2.62 Dia. Servo Mount
See dimensions
SB = Seal Integral
with Bearing
Blank = Shielded Bearing
S= Special
features specified
E = End
M16 =
on purchase order
See note 4
S = Side
MS3102R16S-1P (consult factory)
D15 = DA15P
See table 6
VOLTAGE/OuTPuT:
NO. OF CHANNELS:
C = Pigtail Cable
15V/V = 5-15 V
in/out
28V/V
A = Single Channel
CS = Cable with Seal
= 5-28V
in/out
AB = Dual Quad. Ch.
Cable length
28V/5 = 5-28V
in
/
5V
out
ABZ = Dual with Index
specified in inches
AZ = Single with Index 28V/OC = 5-28V
in
/
OC
out
(i.e. C18 = Pigtail
See note 5
See note 3
18” long)
See table 1 & note 9
C = Complementary
Outputs
Blank = None
COMPLEMENTS
OuTPuT
TERMINATION
LOCATION:
OuTPuT
TERMINATION:
SPECIAL
FEATuRES:
Tel: 805-968-0782 /800-350-2727 | Fax: 805-968-3154 / 800-960-2726
7230 Hollister Ave., Goleta, CA 93117-2807 |
www.beisensors.com
Specification No. 02004-001 Rev.08-11
These commodities, technology or software if exported from the United States must be in accordance with the Bureau of Industry, and Security, Export Administration regulations. Diversion contrary to U.S law is prohibited.
EC = 2.06
.125
.125
0.22
L25 Incremental Optical Encoder
SC = 1.60
F1
EC = 2.06
SIDE
10-32 UNF-2B
.125
CABLE (SC)
0.188 Min.
PIGTAIL
Deep
18"
3 places equally spaced
LEADS
on a Ø
STANDARD
circle.
1.875. bolt
(22AWG)
0.88
± 0.03
0.22
.125
F1
10-32 UNF-2B
0.188 Min. Deep
3 places equally spaced
on a Ø 1.875. bolt circle.
Dimensions
0.2495
L25G - M16 or M18
SIDE
SIDE
CABLE (SC)
CABLE (SC)
18" PIGTAIL
18" PIGTAIL
LEADS
LEADS
STANDARD
STANDARD
(22AWG)
(22AWG)
SC = 1.60
SC = 1.60
EC = 2.06
EC = 2.06
.125
.125
2.500
Ø 2.498
Ø 2.625
0.22
30°
45°
END
CABLE
(EC)
OPTIONAL
2.500
Ø 2.498
45°
Ø 2.625
Figure 1
Ø 0.2497
0.2495
0.20
Output Waveform
1 CYCLE
90 Deg.
Ø 0.2497
0.88
0.88
± 0.03
± 0.03
.125
.125
F1
F2
30°
10-32 UNF-2B
30°
4-40 UNC-2B
0.188 Min. Deep
0.250 Min. Deep
2.50
3 places equally spaced
4 places equally spaced
on a
0.22
1.875. bolt circle.
F1
SM
Ø
F1
CONNECTOR
a Ø 1.272 bolt circle.
0.22
on
10-32 UNF-2B
POSITION
10-32 UNF-2B
0.188 Min.
(0.900 square, Ref.)
Deep
0.188 Min. Deep
45°
3 places equally spaced
on 3 places equally circle.
a Ø 1.875. bolt spaced
on a Ø 1.875. bolt circle.
1.30 (SM16)
1.65 (SM18)
45°
45°
MS3102R16S-1P
OR
MS3102R18-1P
F2
F2
CONNECTOR
F3
F2
4-40 UNC-2B
4-40 UNC-2B
EM
4-40 UNC-2B
0.250 Min.
4-40 UNC-2B
Deep
CONNECTOR
0.250 Min. Deep
0.250 equally spaced
Min. Deep
4 places
0.250 Min. Deep
POSITION
equally spaced
4 places equally spaced
4 places1.272 bolt circle.
on a Ø 1.272 bolt circle.
on a Ø
4 places
(0.900 square, Ref.)
on a Ø 1.272 bolt circle.
(0.900 square, Ref.)
equally spaced
F2
4-40 UNC-2B
0.250 Min. Deep
4 places equally spaced
on a Ø 1.272 bolt circle.
(0.900 square, Ref.)
HI
A
2.06
B
DA15P
CONNECTOR
LO
2.500
Ø 2.498
Ø 0.2497
0.2495
END
CABLE
CABLE
(EC)
(EC)
OPTIONAL
0.22
OPTIONAL
Ø 2.625
END
0.20
2.500
2.500
Ø 2.498
Ø 2.498
2.06
Ø 2.625
Ø 2.625
0.2497
Ø
F1
0.2497
Ø
0.2495
0.2495
30°
Z
A
B
F3
4-40 UNC-2B
0.250 Min. Deep
4 places equally spaced
on a Ø 2.00 bolt circle.
30°
Optional Face Mounts
2.50
2.50
DA15P
CONNECTOR
10-32 UNF-2B
0.188 Min. Deep
3 places equally spaced
on a Ø 1.875. bolt circle.
0.20
0.20
2.06
2.06
Z
(0.900 square, Ref.)
on a Ø 2.00 bolt circle.
SM
SM
ONNECTOR
CONNECTOR
POSITION
POSITION
30 (SM16)
1.30 (SM16)
65 (SM18)
1.65 (SM18)
0.20
30°
2.06
45°
Notes
CCW Rotation Viewing Face
F4
6-32 UNC-2B
0.250 Min. Deep
3 places equally spaced
on a Ø 2.00 bolt circle.
1P
DA15P
S-1P
OR
OR
NECTOR
1P
18-1P
OR
CTOR
EM
EM
CONNECTOR
CONNECTOR
POSITION
POSITION
F1
10-32 UNF-2B
0.188 Min. Deep
3 places equally spaced
on a Ø 1.875. bolt circle.
DA15P
DA15P
CONNECTOR
CONNECTOR
Tables
45°
F2
4-40 UNC-2B
0.250 Min. Deep
4 places equally spaced
on a Ø 1.272 bolt circle.
(0.900 square, Ref.)
F3
4-40 UNC-2B
0.250 Min. Deep
30°
4 places equally spaced
30°
on a Ø 2.00 bolt circle.
F3
F3
4-40 UNC-2B
4-40 UNC-2B
0.250 Min. Deep
0.250 equally spaced
4 places Min. Deep
on 4 places equally spaced
a Ø 2.00 bolt circle.
on a Ø 2.00 bolt circle.
F4
30°
6-32 UNC-2B
0.250 Min. Deep
3 places equally spaced
on a Ø 2.00 bolt circle.
06
Table 1–Incremental Output Terminations
Table 1: Incremental Output Terminations
30°
F4
F4
6-32 UNC-2B
6-32 UNC-2B
0.250 Min. Deep
0.250 Min. Deep
3 places equally spaced
on 3 places equally spaced
a Ø 2.00 bolt circle.
on a Ø 2.00 bolt circle.
0.250 Min. Deep
0.250 Min. Deep
3 places equally spaced
4 places equally spaced
M16 CONNECTOR
equally spaced
4 places
M14 CONNECTOR
CHANNELS DESIGNATED IN MODEL NO.
on a Ø 2.00 bolt circle.
on a Ø 1.272 bolt circle.
on
PIN
PIN
a Ø 2.00 bolt circle.
ABZ
ABC
(0.900 square, Ref.)
E
A
A
A
D
B
B
B
C
C
Z
A
30°
B
D
+V (SUPPLY VOLTAGE)
F
E
—
B
A
F
0 V (CIRCUIT COMMON)
F4
G
CASE GROUND (CG) (except H20)
F3
6-32 UNC-2B
4-40 UNC-2B
0.250 Min. Deep
0.250
WIRE COLOR
Min. Deep
DA 15P
places equally spaced
DESIGNATED IN MODEL NO.
CHANNELS
3
4 places equally spaced
(22AWG)
CONNECTOR
Ø 2.00
ABZ
circle.
ABC
ABZC
on a
bolt
on a Ø 2.00 bolt circle.
YEL
13
A
A
A
BLUE
14
B
B
B
ORN
15
Z
—
Z
30°
W-Yel
10
—
A
A
W-Blu
11
—
B
B
W-Orn
12
—
—
Z
RED
6
+V (SUPPLY VOLTAGE)
F4
6-32 UNC-2B
BLK
1
0 V (CIRCUIT COMMON)
0.250 Min. Deep
GRN
9
CASE GROUND (CG) (except H20)
3 places equally spaced
WHITE
SHIELD DRAIN (Shielded Cable Only)
on a Ø 2.00 bolt circle.
F4
The connector
style will determine pinouts. For example, an encoder with
with ABC
F2
connector
style will determine pinouts. For example, an encoder
The
F3
4-40 UNC-2B
an
an M18 connector uses the table
the
right.
4-40 UNC-2B
ABC channels
channels and
and
M18 connector uses the table to
the
6-32 UNC-2B
right.
0.250 Min. Deep
M18 CONNECTOR
PIN
CHANNEL
A
A
B
B
C
Z
D
+V
E
—
F
0V
G
CG
H
A
I
B
J
Z
M12 CONNECTOR
PIN
CHANNEL
A
A
B
B
C
Z
D
+V
E
—
F
0V
G
CG
H
A
J
B
K
Z
Table 2: Disc
Resolutions for Incremental Encoder Model
25, E25
Table 2–Disc
Resolutions for Incremental Encoder Models H25, H38, H40, L
L25
1, 2, 3, 5, 6,
highlighted
13, 16, 20, 24, 25, 26,
standard
Model H25 EXPRESS ENCODERS
®
that ship in one to three days.
75,
Resolutions
7, 8, 10,
with
are available as
30, 32, 33, 34, 36, 37, 40, 45, 48, 50, 51, 56*, 60, 64, 66, 72,
80,
1, 2, 3, 5, 6,
90,
8,
100, 102, 120,
25, 26, 30, 32,
127, 128, 132, 144,
50, 51, 56*, 60,
158, 160, 175,
86, 88, 90, 100,
187,
120, 122,
86, 88,
7, 10, 13, 16, 20, 24,
122,125,
33, 34, 36, 37, 40, 45, 48,
148, 150,
64, 66, 72, 75, 80,
176, 180,
102,
192, 200,
202, 204*,
128, 132, 144,
240, 250, 254,
175, 176, 180, 187, 192,
274,
202, 204*, 217,
288,
240, 250,
300,
255, 256, 264*,
321,
280, 283,
217, 220,
148, 150, 158, 160,
255, 256, 264*,
200,
280, 283,
220,
292,
254,
312, 320,
274,
325, 360,
125, 127,
366, 372,
300, 312, 320,
380, 381, 384, 385, 393,
380, 381,
430,
385, 393,
450,
430, 432, 450, 462, 480, 490, 500 502, 508, 512, 522,
375, 377,
321, 325, 360, 366, 372, 375, 377,
400,
384,
432,
400,
462, 480, 490, 500, 502, 508, 512, 522,
288, 292,
530, 550, 560*, 576, 598, 600, 604, 625, 628, 635, 638, 640, 660, 672, 676, 680, 687, 690, 700, 720, 725,
530, 550, 560*, 576, 598, 600, 604, 625, 628, 635, 638, 640, 660, 672, 676, 680, 687, 690, 700, 720, 725, 735, 740, 744, 748,750, 762, 768, 780, 785,
735, 740, 744, 748, 750, 762, 768, 780, 785, 800, 812, 825, 850, 864, 878, 888, 900, 912, 914, 938, 942,
800, 812, 825, 850, 864, 878, 888, 900, 912, 914, 938, 942, 955, 960, 1000, 1016, 1024, 1030, 1035, 1036, 1040, 1054, 1056, 1074, 1076, 1080,
955, 960, 1000, 1016, 1024, 1030, 1035, 1036, 1040, 1054, 1056, 1074, 1076, 1080,1088, 1100, 1101, 1125,
1088, 1100, 1101, 1125, 1136, 1200, 1237, 1250, 1257, 1270, 1280, 1300 1314, 1332, 1333, 1390, 1400, 1414, 1427, 1440, 1484, 1500, 1562,
1136, 1200, 1237, 1250, 1257, 1270, 1280, 1300, 1314, 1332, 1333, 1390, 1400, 1414, 1427, 1440, 1484,
1570, 1596, 1600, 1650, 1666, 1718, 1745, 1774, 1800, 1840*, 1850, 1855, 1875, 1894, 1920, 1952, 1968, 1979,1995, 2000, 2048, 2080,
1500, 1562, 1570, 1596, 1600, 1650, 1666, 1718, 1745, 1774, 1800, 1840*, 1850, 1855, 1875, 1894, 1920,
2094, 2100, 2160, 2164, 2199, 2200, 2250, 2356, 2400, 2485, 2500, 2514, 2519, 2540, 3000, 3125, 3600, 4000, 4096, 5000
1952, 1968, 1979, 1995, 2000, 2048, 2080, 2094, 2100, 2160, 2164, 2199, 2200, 2250, 2356, 2400, 2485,
*AB or ABC output only. NOTE: Resolutions up to 72,000 are available.
2500, 2514, 2519, 2540, 3000, 3125, 3600, 4000, 4096, 5000
* AB or ABC output only.
Note:
Resolutions up to 72,000 are available.
Tel: 805-968-0782 /800-350-2727 | Fax: 805-968-3154 / 800-960-2726
7230 Hollister Ave., Goleta, CA 93117-2807 |
www.beisensors.com
1.
Mounting is usually done either using the D-style square flange mount, E- or G-style
servo mounts, or one of the standard face mounts, F1 for example. Consult factory for
additional face mount options.
2.The
shaft seal is recommended in virtually all installations. The most common
exceptions are applications requiring a very low starting torque or those requiring
operation at both high temperature and high speed.
3.
Non-standard index widths and multiple indices are available by special order.
Consult factory.
4.
Complementary outputs are recommended for use with line driver type (source/
sink) outputs. When used with differential receivers, this combination provides a
high degree of noise immunity.
5. Output IC’s:
Output IC’s are available as either Line Driver (LD) or NPN Open
Collector (OC) types. Open Collectors require pull-up resistors, resulting in higher
output source impedance (sink impedance is similar to that of line drivers). In
general, use of a Line Driver style output is recommended. Line Drivers source or
sink current and their lower impedance mean better noise immunity and faster
switching times.
Warning:
Do not connect any line driver outputs directly to
circuit common/OV, which may damage the driver. Unused outputs should be
isolated and left floating. Our applications specialists would be pleased to discuss
your system requirements and the compatibility of your receiving electronics with
Line Driver type outputs.
28V/V:
Multi-voltage Line Driver (7272*): 100 mA source/sink. Input voltage 5 to
28 VDC +/- 5% standard (Note: V
out
= V
in
). This driver is TTL compatible when
used with 5 volt supply. Supply lines are protected against overvoltage to 60 volts
and reverse voltage. Outputs are short circuit protected for one minute. Supply
current is 120 mA typical (plus load current). This is the recommended replace-
ment for 3904R and 7406R open collector outputs with internal pullup resistors.
It is also a direct replacement for any 4469, 88C30, 8830 or 26LS31 line driver
28V/5:
Multi-voltage Line Driver (7272*): 100 mA source/sink. Input voltage 5
to 28 VDC +/- 5% standard, internally regulated with 5V (TTL compatible) logic
out. Supply lines are protected against overvoltage to 60 volts and reverse volt-
age. Outputs are short circuit protected for one minute. Supply current is 90 mA
typical (plus load current).
Note:
Limit encoder load to 2.5W max at ambient.
Example at 12 VDC: 2.5W/(+12VDC minus +5VDC) = 357 mA total allowed
current. Consult factory for your specific requirements.
15V/V:
Multi-voltage Line Driver (4469*): 100 mA source/sink. Input voltage
5 to 15 VDC +/- 5% standard (Note: V
out
= V
in
). TTL compatible when used
with 5 volt supply. Supply lines are protected against overvoltage to 60 volts
and reverse voltage. Outputs are short circuit protected for one minute. Supply
current is 90 mA typical (plus load current). This is a direct replacement for the
4469 Line Driver.
28V/OC:
NPN Open Collector (3904*, 7273*). Current sink of
80 mA max. Current sourced by external pull- up resistor. Output can be pulled
up to voltage other than supply voltage (30 V max). Input voltage 5 to 28 VDC
+
/- 5% standard. Supply current is 120 mA typical. This replaces prior IC’s with
designations of 3904, 7406, 3302, 681 and 689.
5V/OCR, 15V/OCR, 24V/
OCR:
Open Collector (3904R*, 7406R*, 7273R*): Current sink of 70 mA max.
Includes internal pull-ups sized at approximately 100 ohms/volt. Max current
source is 10 mA. Supply current is 100 mA typical, 120 mA with internal pull-
ups. The 5V/OCR, 15V/OCR and 24V/OCR are often replaced by the 28V/V
in system upgrades.
3904, 3904R, 4469, 5V/V, 5V/OC, 5V/OCR, 9V/OC:
Intrinsically safe line driver and open collector outputs. These drivers are spe-
cific to intrinsically safe encoders, and are installed per the appropriate control
drawings listed in Table 2.on this page.
6.
Special –S at the end of the model number is used to define a variety of
non-standard features such as special shaft lengths, voltage options, or special
testing. Please consult the factory to discuss your special requirements.
7.
Higher frequency response may be available. Please consult with the factory.
8.
Extended temperature ratings are available in the following ranges:
-40 to 70°C, -40 to 85°C, –20 to 105°C and –40 to 105°C depending on the
particular model. Some models can operate down to
-55°C. Extended temperature ranges can affect other performance factors.
Consult with factory for more specific information.
9.
Mating straight plug receptacles may be ordered from the factory:
For M12 use MS3116F12-10S, For M14 use MS3106F14S-6S
For M14/19 use MS3116J14-19S, For M16 use MS3106F16S-1S
For M18 use MS3106F18-1S, For M20 use MS3106F20-29S
Notes and Tables
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