BEI Sensors ES20 Incremental Encoder User Manual
Es20
Mechanical
Mating Shaft Diameter: 1/4” and metric versions
Magnetic Coupling Cover: Engineered plastic
Starting Torque: 0.5 oz-in max
Enclosure: Aluminum (sealed aluminum castings)
Maximum RPM: 5000 RPM
Moment of Inertia:
60.2 X 10
-4
oz-in-sec
2
Maximum Acceleration: 25,000 rad/s/s
Torsional flexibility: 0.37 deg/oz-in
Kinematic Error: 3 arc-min
RMS
W
eight: 13 oz
Electrical
Supply Voltage: 5 to 28 VDC available
Voltage/ Output:
28V/V: Line Driver, 5-28 VDC in, Vout = Vin
28V/5: Line Drive, 5-28 VDC in, Vout = 5 VDC
28V/OC: Open Collector, 5-28 VDC in, OC out
Current Requirements: 100 mA typical + output load, 250
mA (max)
Protection Level: reverse, overvoltage and output short
circuit
Code: Incremental
Output Format: 2 Channels in quadrature, with gated index
and complementary outputs.
Cycles per Shaft Turn: 1 to 1,024 (See Table 1)
Frequency Response: 100 KHz
O
utput Terminations: (See Table 2)
Environmental
Temperature: Operating, 0° to 70°C; storage (non-operating),
-25° to 90°C. Consult factory for extended temperature
ratings.
Shock: 25 g’s for 11 msec duration
Vibration: 5 to 2000 Hz @ 10 g’s
Humidity: 100% RH with condensation
Enclosure Rating: IP67 / IP68 (Consult factory for IP68
applications)
ES20
Environmentally Sealed Incremental Encoder
ES20 Environmentally Sealed Incremental Encoder Ordering Options
For assistance, call 800-350-2727
Use this diagram, working from left to right, to construct your model number.
Example: ES20D-37-500-ABZC-28V/V-SM18-S (-S: special shaft, diameter/ length, output level or termination)
ES20
S
Type:
2.00” Diameter
Housing
The ES20 is a rugged incremental encoder that is environmentally
sealed through the use of a magnetic shaft coupling connection.
This connection allows the encoder to be completely enclosed
and sealed against water ingress. It is rated to IP67 and can
operate while fully immersed in one meter of water for up to 30
minutes. The magnetic coupling also allows the encoder to be
isolated from high shock and vibration, dust tight, and resistant to
debris in the environment. Since the ES20 is not physically
coupled to external equipment, the problem of shaft misalignment
is eliminated, meaning no more broken couplings!
The ES20 is ideal for applications with heavy wash-downs,
temporary water immersions, and excessive environmental
debris. It combines the high accuracy, repeatability and
robustness needed for use in harsh environments and can help
reduce costly downtime of your system.
Magnetic Hub Bore:
25 = 0.250”
Blank = None
Consult factory for other sizes
Cycles per Turn:
See Resolution Table 2
Channels:
ABZC = Dual with Index
and complements
ABC = Dual w/comp.
ABZ = Dual w/index
Special Features:
Consult Factory
Output Termination:
M18 = MS3102R18-1P
M16 = MS3102R16-1P
M18 = MS3102R18-1P
Voltage/Output
28V/V = 28 V in/out
28V/5 = 28 V in/5 out
28V/OC = 5-28Vin / OC out
Specifications
S
Output Location:
S = Side
D
Housing Config:
D = Square Flange
Tel
-0782 / 800-350-2727 | Fax 805-968-3154 / 800-960-2726
7230 Hollister Ave., Goleta, CA 93117 |
www.beisensors.com
: 805-968
:
Specification No. 02106-001 Rev. 06/11