H25 Incremental Optical Encoder
The H25 is the flagship of the BEI Sensors product line. It was designed from the ground
up for the industrial marketplace. The H25 offers features such as EMI shielding, 40 lb.
ABEC 7 bearings, matched thermal coefficients on critical components, and custom high-
efficiency optics. The encoder meets NEMA 4 and 13 requirements when ordered with
the shaft seal. Typical applications include machine control, process control, the wood
processing industry, oil well logging, industrial weighing, agricultural machinery, textile
equipment, web process control, robotics, and food processing.
Special Models of the H25 Incremental Encoder are available with one or more of the
following certifications. Consult factory for details.
Class I, Group A,B,C & D;
EN 61000-6-4 and EN 61000-6-2
Class I, Zone 0, Group IIC
C
Class II Group E, F & G
UL 12.0035X
UL 13.0071X
Class I, Div 2, Group A,B,C & D;
CENELEC
Class II, Div 2, Group F & G
II 1 G Ex ia IIB/IIC T4
II 3 G Ex nA IIB T4 Gc
Maximum RPM: 12,000 RPM nominal, 8000 RPM with Protection Level: Reverse, overvoltage and output short circuit
Mechanical Specifications
1/2 shaft (see Frequency Response, below) 30,000 RPM (see note 5)
Shaft Diameter: 3/8 (1/2as special feature)
available on units with 3/8 shaftconsult with factory
Frequency Response: 100 kHz, up to 1MHz with interpolation
-4 2 -4
Flat On Shaft: 3/8 Shaft: 0.80 long X 0.03 deep;
Moment of Inertia: 4.1 X 10 oz-in-sec ; 5.2 X 10 option (see note 7)
2
1/2 Shaft: 0.80 long X 0.04 deep (1/2 shaft w/flat must be
oz-in-sec with 1/2 shaft
Output Terminations: (See table 1, back)
ordered as special feature)
Weight: 13 oz typical, 14.5 oz typical with 1/2 shaft
Note: Consult factory for other electrical options
Shaft Loading: 3/8 shaft: Up to 40 pounds axial and 35
pounds radial; 1/2 shaft: Up to 90 pounds axial and 80 pounds
Electrical Specifications
Environmental Specifications
radial
Code: Incremental
Enclosure Rating: NEMA 4 & 13 (IP 66) when ordered with
Shaft Runout: 0.0005 T.I.R. at midpoint regardless of
Output Format: 2 channels in quadrature, 1/2 cycle index shaft seal (on units with an MS connector) or a cable gland
shaft diameter
gated with negative B channel (on units with cable termination).
Starting Torque at 25C: Without shaft seal 1.0 in-oz (max);
Cycles Per Shaft Turn: 1 to 72,000 (see table 2) For resolu- Temperature: Operating, 0 to 70 C; extended temperature
With shaft seal 2.5 in-oz (max); 1/2 shaft with shaft seal:
tions above 3,600 see BEI for interpolation options testing up to 105C available; Storage, -25 to 90 C unless
3.5 in-oz (max)
extended temperature option called out.
Supply Voltage: 5 to 28 VDC available
Bearings: Class ABEC 7 standard, ABEC 5 for 1/2 shaft
Shock: 50 gs for 11 msec duration
Current Requirements: 100 mA typical +output load,
Shaft Material: 416 stainless steel
250 mA (max) Vibration: 5 to 2000 Hz @ 20 gs
Bearing Housing: Die cast aluminum with protective finish;
stainless steel (special feature) Voltage/Output: (see note 5) Humidity: 98% RH without condensation
15V/V: Line Driver, 515 VDC in, Vout = Vin
Cover: Die cast aluminum; stainless steel (special feature)
8 28V/V: Line Driver, 528 VDC in, Vout = Vin
NOTES & TABLES: All notes and tables referred to in the text
Bearing Life: 2 X 10 revs (1300 hrs at 2500 RPM)
10 28V/5: Line Driver, 528 VDC in, Vout = 5 VDC
can be found on the back of this page.
at rated load 1 X 10 revs (67,000 hrs at 2500 RPM) at
28V/OC: Open Collector, 528 VDC in, OCout
10% of rated load
H25 Incremental Ordering Options for assistance call 800-350-2727
Use this diagram, working from left to right to construct your model number (example: H25D-SS-2000-ABZC-28V/V-SM18).
All notes and tables referred to can be found on pages the back of this page.
H25
TYPE: OPTIONAL CYCLES PER TURN: COMPLEMENTS OUTPUT HAZARDOUS
SPECIAL
AREA RATINGS:
H = Heavy Duty FACE MOUNTS (Enter Cycles) C = Complementary TERMINATION
FEATURES:
Blank = None
Outputs
See Table 2
25 = 2.500 Dia. F1(E housing only),F2, F3, LOCATION: S = Special
EX = Intrinsically Safe
Blank = None
or F4 E = End features specified
Blank = None
NI = Non-Incendive
See note 4
See note 1
S = Side on purchase order
Contact factory for
(consult factory)
HOUSING CONFIG. SHAFT SEAL NO. OF CHANNELS: VOLTAGE/OUTPUT:
voltage options
X =
See note 6
LETTER: CONFIGURATION: A = Single Channel 15V/V = 515 V
in/out
Express OUTPUT
AB = Dual Quad. Ch. 28V/V = 528V
D=Square Flange SS = Shaft Seal in/out
Encoder TERMINATION:
28V/5 = 528V /5V
E=2.50 Dia. Servo Mount ABZ = Dual with Index in out
(Not avail. on H25G) M12 = MS3112E12-10P
28V/OC = 528V /OC
in out
G=2.62 Dia. Servo Mount Blank = Shielded Bearing AZ = Single with Index M16 = MS3102R16S-1P
See note 5
See dimensions See note 2 See note 3
M18 =MS3102R18-1P
C = Pigtail Cable
EXPRESS ENCODERS: Items highlighted with are standard Express Encoders and ship in one to three days.
CS = Cable with seal
T2 and T5 options are available as standard H25 Express Encoder model options.
Cable length specified in inches
(i.e. C18 = Pigtail 18 long)
See table 1 & note 9
Tel: 805-716-0322 /800-350-2727
www.beisensors.com Specification No. 02002-001 Rev B 04-17
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.Notes and Tables
H25 Incremental Optical Encoder
Figure 1
Output Waveform
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 excep-
tions are applications requiring a very low starting torque or those requiring operation at
Tables
both high temperature and high speed.
3. Non-standard index widths and multiple indices are available by special order. Consult factory.
Table 1: Incremental Output Terminations
4. Complementary outputs are recommended for use with line driver type (source/sink)
Table 1: Incremental Output Terminations outputs. When used with differential receivers, this combination provides a high degree
The connector style will determine pinouts. For example, an encoder with
M18 CONNECTOR
of noise immunity.
ABC channels and an M18 connector uses the table to the right.
PIN CHANNEL
5. Output ICs: Output ICs are available as either Line Driver (LD) or NPN Open Collector
The connector style will determine pinouts. For example, an encoder with AA
M14 CONNECTOR M16 CONNECTOR CHANNELS DESIGNATED IN MODEL NO. (OC) types. Open Collectors require pull-up resistors, resulting in higher output source
M 18 CONNECTOR
ABC channels and an M18 connector uses the table to the right. BB
impedance (sink impedance is similar to that of line drivers). In general, use of a Line
PIN PIN ABZ ABC
PIN CHANNEL
CZ Driver style output is recommended. Line Drivers source or sink current and their lower
EA AA
A A
M14 CONNECTOR M16 CONNECTOR CHANNELS DESIGNATED IN MODEL NO. D+V impedance mean better noise immunity and faster switching times. Warning: Do not
DB BB B B
connect any line driver outputs directly to circuit common/OV, which may damage the
PIN PIN ABZ ABC E
C Z
CC Z A
driver. Unused outputs should be isolated and left floating. Our applications specialists
E A A A F0V
D +V
BD +V (SUPPLY VOLTAGE)
would be pleased to discuss your system requirements and the compatibility of your
D B B B E
GCG
FE B
C C Z A receiving electronics with Line Driver type outputs.
F 0V
HA
AF 0 V (CIRCUIT COMMON)
B D +V (SUPPLY VOLTAGE) G CG 28V/V: Multi-voltage Line Driver (7272*): 100 mA source/sink. Input voltage 5 to 28
IB
G CASE GROUND (CG) (except H20)
F E B H A VDC +/- 5% standard (Note: V = V ). This driver is TTL compatible when used with
out in
JZ
A F 0V (CIRCUIT COMMON)
I B 5 volt supply. Supply lines are protected against overvoltage to 60 volts and reverse
G CASE GROUND (CG) (except H20) J Z
WIRE COLOR DA 15P CHANNELS DESIGNATED IN MODEL NO. voltage. Outputs are short circuit protected for one minute. Supply current is 120 mA
M12 CONNECTOR
(22AWG) CONNECTOR typical (plus load current). This is the recommended replacement for 3904R and 7406R
ABZ ABC ABZC
PIN CHANNEL open collector outputs with internal pullup resistors. It is also a direct replacement for any
WIRE COLOR YEL DA 15P 13ACHANNELS DESIGNATED IN MODEL NO.AA M 18 CONNECTOR
(22AWG) CONNECTOR 4469, 88C30, 8830 or 26LS31 line driver
AA
BLUE 14BABZ ABC BBABZC PIN CHANNEL
28V/5: Multi-voltage Line Driver (7272*): 100 mA source/sink. Input voltage 5 to 28 VDC +/-
BB
YEL 13 A A A A A
ORN 15Z Z
5% standard, internally regulated with 5V (TTL compatible) logic out. Supply lines are protected
BLUE 14 B B B B B
CZ
W-Yel10 AA
against overvoltage to 60 volts and reverse voltage. Outputs are short circuit protected for one
ORN 15 Z Z C Z
D+V
W-Blu11 BB
minute. Supply current is 90 mA typical (plus load current).
W-Yel 10 A A D +V
E
W-BluW-Orn111 2 B ZB E 15V/V: Multi-voltage Line Driver (4469*): 100 mA source/sink. Input voltage 5 to 15
F0V
F 0V VDC +/- 5% standard (Note: V = V ). TTL compatible when used with 5 volt supply.
RED 6 +V (SUPPLY VOLTAGE) out in
W-Orn 12 Z
GCG
G CG
Supply lines are protected against overvoltage to 60 volts and reverse voltage. Outputs
BLK 10 V (CIRCUIT COMMON)
HA
RED 6 +V (SUPPLY VOLTAGE)
H A
are short circuit protected for one minute. Supply current is 90 mA typical (plus load
GRN 9 CASE GROUND (CG) (except H20)
JB
BLK 1 0V (CIRCUIT COMMON)
J B
current). This is a direct replacement for the 4469 Line Driver.
GRNWHITE 9 CASE GROUND (CG) (except H20)SHIELD DRAIN (Shielded Cable Only)
K KZZ
28V/OC: NPN Open Collector (3904*, 7273*). Current sink of 80 mA max. Current
WHITE SHIELD DRAIN (Shielded Cable Only)
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
Table 2: Disc Resolutions for Incremental Encoder Models H25, H38, H40, L25, E25
Table 2: Disc Resolutions for Incremental Encoder Models H25, H38, H40, L25, E25
mA typical. This replaces prior ICs with designations of 3904, 7406, 3302, 681 and 689.
5V/OCR, 15V/OCR, 24V/OCR: Open Collector (3904R*, 7406R*, 7273R*): Current
Resolutions highlighted with are available as standard Model 25 EXPRESS ENCODERS that ship in one to three days.
Resolutions highlighted with are available as standard Model H25 EXPRESSENCODERS that ship in one to three days. sink of 70 mA max. Includes internal pull-ups sized at approximately 100 ohms/
volt. 5V/V. 5V/OC, 5V/OCR and 9V/OC can be intrinsically safe line driver and open
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,
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,
collector outputs available on certain model variations. They are intrinsically safe only
80, 86, 88, 90, 100, 102, 120, 122,125, 127, 128, 132, 144, 148, 150, 158, 160, 175, 176, 180, 187, 192, 200,
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, when installed per the controldrawing noted on the certification label affixed to the
202, 204*, 217, 220, 240, 250, 254, 255, 256, 264*, 274, 280, 283, 292, 300, 312, 320, 321, 325, 360, 366,
encoder body.
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,
372, 375, 377, 380, 381, 384, 385, 393, 400, 430, 432, 450, 462, 480, 490, 500, 502, 508, 512, 522,530, 550,
3904, 3904R, 4469, 5V/V, 5V/OC, 5V/OCR, 9V/OC: Intrinsically safe line driver
560*, 576, 598, 600, 604, 625, 635, 638, 640, 660, 672, 676, 680, 687, 690, 700, 720, 725, 735, 740, 744,
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,
and open collector outputs. These drivers are specific to intrinsically safe encoders,
748, 750, 762, 768, 780, 785, 800, 812, 825, 850, 864, 878, 888, 900, 912, 914, 938, 942, 955, 960, 1000,
and are installed per the appropriate control drawings listed in Table 2.1 on page 48.
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,
1016, 1024, 1030, 1035, 1036, 1040, 1054, 1056, 1074, 1076, 1080, 1088, 1100, 1101, 1125, 1136,
6. Special S at the end of the model number is used to define a variety of non-standard
1200, 1088, 111237, 00, 1101, 11250, 125, 111257, 36, 1200, 11270, 237, 1251280, 0, 1257, 11300, 270, 1281314, 0, 1300 1332, 1314, 1332, 1333, 1333, 1390, 1390, 1400, 1400, 1414, 1414, 1427, 1440, 1427, 1484, 1440, 1500, 1562,1484,
features such as special shaft lengths, voltage options, or special testing. Please consult
1500, 1562,1570, 1596, 1600, 1650, 1666, 1718, 1745, 1774, 1800, 1840*, 1850, 1855, 1875, 1894, 1920,
the factory to discuss your special requirements.
1570, 1596, 1600, 1650, 1666, 1718, 1745, 1774, 1800, 1840*, 1850, 1855, 1875, 1894, 1920, 1952, 1968, 1979,1995, 2000, 2048, 2080,
1952, 1968, 1979,1995, 2000, 2048, 2080, 2094, 2100, 2160, 2164, 2199, 2200, 2250, 2356, 2400,
7. Higher frequency response may be available. Please consult with the factory.
2094, 2100, 2160, 2164, 2199, 2200, 2250, 2356, 2400, 2485, 2500, 2514, 2519, 2540, 3000, 3125, 3600, 4000, 4096, 5000
2485, 2500, 2514, 2519, 2540, 2821, 2827, 2833, 3000, 3125, 3600, 4000, 4096, 5000
8. Mating straight plug receptacles may be ordered from the factory:
*AB or ABC output only. NOTE: Resolutions up to 72,000 are available.
For M12 use MS3116F12-10S, For M14 use MS3106F14S-6S
*AB or ABC output only. NOTE: Resolutions up to 72,000 are available.
For M14/19 use MS3116J14-19S, For M16 use MS3106F16S-1S
These commodities, technology or software if exported from the United States must be in accordance with the Bureau of Industry,
For M18 use MS3106F18-1S, For M20 use MS3106F20-29S
and Security, Export Administration regulations. Diversion contrary to U.S. Law is prohibited.
* Products manufactured prior to April 2007 used the line driver IC number instead of
voltage output in model number.
Tel: 805-716-0322 /800-350-2727 | www.beisensors.com