E25 Incremental Optical Encoder
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: Die cast aluminum with protective finish
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
Cover: Drawn aluminum, 0.060” wall, protective finish standard. Die cast
aluminum with protective finish for EM, SM, ECS and SCS terminations
9
Bearing Life: 1 X 10 revs (6,700 hrs at 2500 RPM) at rated load
mounting ring and shaft coupling.
the integrated mounting ring and
Maximum RPM: 10,000
Weight: 13 oz., typical
Enclosure Rating: NEMA 2 (IP43)
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.
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 = V
out in
28V/5: Line Driver, 5–28 VDC in, V = 5 VDC
out
28V/OC: Open Collector, 5–28 VDC in, OC
out
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
Installation Note:
To prevent damage,
the coupling must
be operated without
excessive axial com-
pression or extension.
For proper installation,
rotate the coupling on
the mating shaft prior
to tightening the set
screws.
HIꢁH-PERFORMANCE
COꢀPLINꢁ
STANDARD
COꢀPLINꢁ
COꢀPLINꢁ DATA
TYPE 4H
.250/.251
.16
TYPE 4R
TYPE 6R
Coupling Bore
.2500/.2505 .3750/.3755
Dimension A1(E25BA only)
Dimension A2 (E25BB & BC)
Axial Motion (Inches Max.)
Parallel Offset(Inches Max.)
Angular Misalignment (Degrees Max.)
Torsional Spring Rate (arc-sec/oz-in)
.08
.02
.020
.010
2
.08
.02
.030
.010
2
.10
.010
.010
2
52
15
21
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.
The E25 Incremental Encoder is available with the following certifications:
Shock: 50 g’s for 11 msec duration
Vibration: 5 to 2000 Hz @ 20 g’s
EN 55011 and EN 61000-6-2
CENELEC EEX ia IIC T4
Humidity: 98% RH without condensation
U.S. Standards Class I, Group A,B,C &D;
Class II Group E,F & G
Canadian Standards
Class I, Zone 0, Group IIC
C
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.
OꢀTPꢀT
TERMINATION
LOCATION:
E = End
OPTIONAL FACE MOꢀNTS
CYCLES PER TꢀRN:
(Enter Cycles)
COMPLEMENTS
C = Complementary
Outputs
Blank = None
See note 4
SPECIAL
FEATꢀRES:
4H = 0.250 I.D., Std
4R = 0.250 I.D., High Performance
6R = 0.375 I.D., High Performance
See note 1
See Table 2
S= Special
features specified
on purchase order
(consult factory)
S = Side
OꢀTPꢀT
TERMINATION:
HOꢀSINꢁ CONFIꢁ.
SHAFT SEAL
NO. OF CHANNELS:
VOLTAꢁE/OꢀTPꢀT:
15V/V = 5-15 Vin/out 28V/V
= 5-28Vin/out
See note 6
M16 = MS3102R16S-1P
M18 =MS3102R18-1P
C = Pigtail Cable
LETTER:
A = Single Channel
AB = Dual Quad. Ch.
ABZ = Dual with Index
AZ = Single with Index
See note 3
CONFIꢁꢀRATION:
SB = Seal Integral with Bearing
Blank = Shielded Bearing
See note 2
BA, BB, or BC
28V/5 = 5-28V 5V
28V/OC = 5-28V OC
/
in
out
CS = Cable with seal
/
in
out
See note 5
Cable length specified in inches
(i.e. C18 = Pigtail 18” long)
See table 1 & note 8
tꢀꢁ: 805-968-0782 /800-350-2727 | fꢂx: 805-968-3154 /800-960-2726
7230 Hꢃꢁꢁꢄꢅꢆꢀꢇ avꢀ., Gꢃꢁꢀꢆꢂ, ca 93117-2807 | www.beisensors.com
spꢀꢈꢄꢉꢄꢈꢂꢆꢄꢃꢊ nꢃ. 02047-001 rꢀv.08-11
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