BEI Sensors E25 Data Sheet

E25 Incremental Optical Encoder

The E25 has been designed as a light

duty encoder for applications such as

robotics, precision computer peripher-

als and OEM motors and controls.

It is designed with an integrated

mounting ring and shaft coupling.

the integrated mounting ring and

shaft coupling allow for simplified

installing and a low overall profile

when the unit is mounted on a motor.

These self-contained mounting and coupling

features can result in reduced interface cost.

STANDARD

COUPLING DATA

Coupling Bore .250/.251 .2500/.2505 .3750/.3755

Dimension A1(E25BA only) .16 .08 .08

Dimension A2 (E25BB & BC) .10 .02 .02

Axial Motion (Inches Max.) ±.010 ±.020 ±.030

Parallel Offset(Inches Max.) .010 .010 .010

Angular Misalignment (Degrees Max.)

Torsional Spring Rate (arc-sec/oz-in) 52 15 21

COUPLING

TYPE 4H

2 2 2

HIGH-PERFORMANCE

COUPLING

TYPE 4R TYPE 6R

The E25 Incremental Encoder is avail able with the following certifications:

EN 55011 and EN 61000-6-2

U.S. Standards Class I, Group A,B,C & D;
Class II Group E, F & G

CENELEC EEX ia IIC T4

Canadian Standards

C

Class I, Zone 0, Group IIC

Installation Note:

To prevent damage,
the coupling must
be operated without
excessive axial com­pression or extension.
For proper installation,
rotate the coupling on
the mating shaft prior
to tightening the set
screws.

Mechanical Specifications

Coupling Bore: 1/4” and 3/8” nominal, standard
Starting Torque at 25° C: 0.07 in-oz typical
Bearings: Class ABEC 5
Coupling Material: Aluminum with protective finish
Bearing Housing
Cover: Drawn aluminum, 0.060” wall, protective finish standard. Die cast

aluminum with protective finish for EM, SM, ECS and SCS terminations

Bearing Life:
Maximum RPM: 10,000
Weight: 13 oz., typical
Enclosure Rating: NEMA 2 (IP43)

: Die cast aluminum with protective finish

1 X 109 revs (6,700 hrs at 2500 RPM) at rated load

Electrical Specifications

Code: Incremental
Output Format: 2 channels in quadrature, 1/2 cycle index

gated with negative B channel
Cycles Per Shaft Turn: 1 to 28,800 (see table 2)
For resolutions above 3,600 see BEI for interpolation options

Supply Voltage: 5 to 28 VDC available
Current Requirements: 100 mA typical +output load, 250 mA (max)
Voltage/Output: (see note 5)

28V/V: Line Driver, 5–28 VDC in, V
28V/5: Line Driver, 5–28 VDC in, V
28V/OC: Open Collector, 5–28 VDC in, OC

Protection Level: Reverse, overvoltage and output short circuit (see note 5)
Frequency Response: 100 kHz, up to 800 KHz with interpolation option

(see note 7)

Output Terminations: (See table 1, back)
Note: Consult factory for other electrical options

= Vin

out

= 5 VDC

out

out

Environmental Specifications

Temperature: Operating, 0º to 70º C; extended temperature

testing available (see note 8); Storage, -25º to 90º C unless
extended temperature option called out.

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.

E25 Incremental Ordering Options FOR ASSISTANCE CALL 800-350-2727

Use this diagram, working from left to right to construct your model number (example: E25BB-4H-500-ABZC-28V/V-SM18).

E25

TYPE:

E = Heavy Duty

25 = 2.500” Dia.

HOUSING CONFIG.

OPTIONAL FACE MOUNTS

4H = 0.250 I.D., Std
4R = 0.250 I.D., High Performance
6R = 0.375 I.D., High Performance

See note 1

LETTER:

BA, BB, or BC

CYCLES PER TURN:

(Enter Cycles)

See Table 2

SHAFT SEAL

CONFIGURATION:

SB = Seal Integral with Bearing

Blank = Shielded Bearing

See note 2

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7230 Hollister Ave., Goleta, CA 93117-2807 | www.beisensors.com

NO. OF CHANNELS:

A = Single Channel
AB = Dual Quad. Ch.

ABZ = Dual with Index

AZ = Single with Index

COMPLEMENTS

C = Complementary

See note 3

Outputs

Blank = None

See note 4

VOLTAGE/OUTPUT:

15V/V = 5-15 V

= 5-28V
28V/5 = 5-28V
28V/OC = 5-28V

See note 5

in/out

in/out

28V/V

5V

/

in

OC

/

in

out

out

OUTPUT

TERMINATION

LOCATION:

E = End

S = Side

Cable length specified in inches

OUTPUT

TERMINATION:

M16 = MS3102R16S-1P

M18 =MS3102R18-1P

C = Pigtail Cable

CS = Cable with seal

(i.e. C18 = Pigtail 18” long)

See table 1 & note 8

Specification No. 02047-001 Rev.08-11

SPECIAL

FEATURES:

S= Special

features specified

on purchase order

(consult factory)

See note 6

E25 Incremental Optical Encoder

Notes and Tables

The connector style will determine pinouts. For example, an encoder with
ABC channels and an M18 connector uses the table to the right.

Table 1: Incremental Output Terminations

AA
BB
ZA

—B

M18 CONNECTOR

PIN CHANNEL

AA
BB
CZ
D+V
E—

F0V
GCG
HA

IB

JZ

AA

M12 CONNECTOR

PIN CHANNEL

AA
BB
CZ
D+V
E—
F0V
GCG
HA
JB
KZ

AA
BB
CZ
D+
E—

F0
GC
HA

IB

JZ

Dimensions

E25BA

E25BB (NEMA 34/42 Compatible)

E25BC

Notes

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
driver is TTL compatible when used with 5 volt supply. Supply lines

Tel: [phone] | Fax: [phone] | 7230 Hollister Ave., Goleta, CA 93117-2807

www.beisensors.com

= Vin). This

out

Tables

Table 1: Incremental Output Terminations

The connector style will

determine pinouts. For

example, an encoder

with ABC channels and

an M18 connector uses

the table below.

M18 CONNECTOR

PIN CHANNEL

V

V
G

Table 2: Disc Resolutions for Incremental Encoder Model E25

1, 2, 3, 5, 6, 7, 8, 10, 13, 16, 20, 24, 25, 26, 30, 32, 33, 34, 36, 37, 40, 45, 48, 50, 51, 56*, 60,
64, 66, 72, 75, 80, 86, 88, 90, 100, 102, 120, 122,125, 127, 128, 132, 144, 148, 150, 158, 160,
175, 176, 180, 187, 192, 200, 202, 204*, 217, 220, 240, 250, 254, 255, 256, 264*, 274, 280, 283,
288, 292, 300, 312, 320, 321, 325, 360, 366, 372, 375, 377, 380, 381, 384, 385, 393, 400, 430,
432, 450, 462, 480, 490, 500, 502, 508, 512, 522, 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, 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, 1080,1088, 1100, 1101, 1125, 1136,
1200, 1237, 1250, 1257, 1270, 1280, 1300, 1314, 1332, 1333, 1390, 1400, 1414, 1427, 1440,
1484, 1500, 1562, 1570, 1596, 1600, 1650, 1666, 1718, 1745, 1774, 1800, 1840*, 1850, 1855,
1875, 1894, 1920, 1952, 1968, 1979, 1995, 2000, 2048, 2080, 2094, 2100, 2160, 2164, 2199,
2200, 2250, 2356, 2400, 2485, 2500, 2514, 2519, 2540, 3000, 3125, 3600, 4000, 4096, 5000

* AB or ABC output only. Note: Resolutions up to 72,000 are available.

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
replacement 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 voltage. 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
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
typical. This replaces prior IC’s with designations of 3904, 7406,
3302, 681 and 689.

+

/- 5% standard. Supply current is 120 mA

M14 CONNECTOR M16 CONNECTOR CHANNELS DESIGNATED IN MODEL NO.

PIN PIN ABZ ABC

EA
DB
CC
BD +V (SUPPLY VOLTAGE)
FE
AF 0 V (CIRCUIT COMMON)

WIRE COLOR DA 15P CHANNELS DESIGNATED IN MODEL NO.

(22AWG) CONNECTOR

YEL 13 AAA

BLUE 14 BB B

ORN 15 Z— Z
W-Yel10—
W-Blu 11 —B B
W-Orn 12 —— Z

RED 6 +V (SUPPLY VOLTAGE)

BLK 10 V (CIRCUIT COMMON)

GRN 9 CASE GROUND (CG) (except H20)

WHITE SHIELD DRAIN (Shielded Cable Only)

= Vin). TTL

out

G CASE GROUND (CG) (except H20)

ABZ ABC ABZC

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 specific
to intrinsically safe encoders, and are installed per the appropriate
control drawings listed in Table 2.1 on page 48 of the specifying
guide.

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

* Products manufactured prior to April 2007 used the line driver IC number instead of voltage output in model number.