BEI Sensors H25X Absolute Shaft Encoder - Manual

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. 02085-001 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.
H25X Absolute Optical Encoder
The H25X series single turn encoder is
designed for those applications that
require 14 or 15 bits of resolution
in a compact, easy-to-integrate
package. Gray Code and Natural
Binary outputs are available for
installations using a parallel input
with the controller. For simplic-
ity of data transmission, ease of
cabling and better noise immu-
nity, an SSI (Serial Synchronous
Interface) is also offered. This
encoder works with the BEI Serial-to-
Parallel converter, allowing for system
upgrades from parallel output to SSI.
The H25X is built to the exacting mechanical standards used with the H25 design,
including: dual preloaded ABEC 7 bearings; matched thermal coefficients on critical
components and electronically centered code disks for high accuracy and stability over
a range of environments. Specify the H25X when you need high pointing accuracy and
ruggedness in a 14 or 15 bit absolute encoder for your telescope, antenna, robotics,
material handling or general industrial automation.
Mechanical Specifications
Shaft Diameter: 3/8”
Shaft Loading: Up to 25 pounds axial and radial
Shaft Runout: 0.0005 T.I.R. at midpoint regardless of shaft diameter
Starting Torque at 25°C: With shaft seal 2.5 in-oz
Bearings: Class ABEC 7 standard, ABEC 5 for 1/2” shaft
Shaft Material: 416 stainless steel
Bearing Housing: Die cast aluminum with iridite finish
Cover: Die cast aluminum
Bearing Life: 2 X 10
8 revs (1300 hrs at 2500 RPM) at rated load
1 X 10 10 revs (67,000 hrs at 2500 RPM) at 10% of rated load
Maximum RPM: 12,000 RPM mechanical,
Moment of Inertia: 4.1 X 10
-4 oz-in-sec 2
Weight: 13 oz typical
Connector: MS3112E14-19P, 19–pin connector on encoder body,
mates to MS3116J14-19S (or equivalent)
Electrical Specifications
Code: 14 or 15 bits NB or GC
Counts Per Shaft Turn: 16,384 or 32,768
Count Transition Accuracy: ± 1/2 bit maximum
Supply Voltage: 5–28 VDC
Current Requirements: 120 mA typical
Output Formats:
Parallel: Gray Code, Natural Binary
Serial: Serial Synchronous Interface (SSI) compatible
Voltage/Output: (see note 4)
28V/V: Line Driver, 5–28 VDC in, Vout = Vin
28V/5: Line Driver, 5–28 VDC in, Vout = 5 VDC
28V/OC: Open Collector, 5–28 VDC in, OCout
SSI: 5–28 VDC IN/5Vout (see back page)
Protection Level: Reverse, overvoltage and output short circuit
protection (see note 3)
Frequency Response: 500kHz
Output Termination Pinouts: see Table 1, back page
Environmental Specifications
Enclosure Rating: NEMA 4 & 13 (IP 66) when ordered with shaft seal (on
units with an MS connector) or a cable gland (on units with cable termination).
Temperature: Operating, 0º to 70º C; extended temperature
testing available (see note 7); 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.
The H25 Absolute Encoder is avail able with the following certification:
EN 55011 and EN 61000-6-2
CODE TYPE:
GC = Gray Code
NB = Natural Binary
HOUSING :
D = Square Flange
E = 2.5 inch dia.
servo mount
H25X Absolute Encoder Ordering Options
FoR ASSiSTANCe CAll 800-350-2727
Use this diagram, working from left to right to construct your model number (example: H25XD-F4-SS-14GC-28V/V-CW-SM14/19).
All notes and tables referred to can be found on the back of this page.
TYPE:
Heavy Duty
2.5 inch Dia.
X = Extended
Resolution
FACE MOUNTS:
F4 = 6–32 holes,
3 places equally
spaced on
2.00 inch bolt circle
See note 1
NUMBER OF BITS:
14 = 14-Bits, 16,384 counts per turn
15 = 15-Bits, 32,768 counts per turn
TERMINATION TYPE:
M14/19 = 19 pin connector
CS = Cable with gland seal
Cable length specified in inches
(i.e. C18 = pigtail 18” long)
M18 = MS3102R18-1P
(S3 output only)
SHAFT SEAL
CONFIGURATION:
SS = Shaft Seal
See note 2 VOLTAGE/OUTPUT
28V/V = 5–28Vin/out
28V/5 = 5–28Vin/5Vout
28V/OC = 5–28Vin/OCout
S3 = Serial Synchronous
Interface (See note 4)
OUTPUT
TERMINATION
LOCATION:
E = End
S = Side
DIRECTION OF COUNT:
CW = Clockwise increasing count
CCW = Counter clockwise
increasing count SPECIAL
FEATURES:
S = Special features
specified on purchase
order (consult factory)
See note 5
H25X