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Rotary Shaft Encoder
#380 High-Resolution Digital Pulse Output
#470 Heavy-Duty Model
• Ideal for use on slow-speed applications
• Multiple mounting configurations for easy installation
• Wide variety of pulse per revolution (PPR) counts available
• Provides precise pulse train for use with Tachometers,
Counters, Speed Switches and Speed-to-Analog Converters
Product Information
Description
Outputs • Waveform Timing:
Rotary Shaft Encoders are ideal for use on any moving shaft to provide a digital
output signal to tachometers, counters, speed switches, and motor controls.
Flexible shaft couplings are available as an option to compensate for shaft
misalignment, and are recommended for most applications.
Electro-Sensors’ Rotary Shaft Encoders convert shaft rotation into square wave
output pulses. They provide an accurate means of transmitting actual speed
information for detecting rate, position, or direction of rotation. The shaft
encoder produces an output signal by rotating a disc with clear and opaque
segments between a light-emitting diode and a photo-transistor sensor. This
signal is then converted into a square wave signal by an internal squaring
circuit. The number of output pulses per shaft revolution is determined by the
number of clear and opaque segments on the disc. Quadrature models have
a second LED and sensor positioned 90 degrees apart to produce two square
wave signals.
The #380 Encoder is a standard industrial grade encoder available with single
channel or quadrature output. The #470 Encoder has a size 25 heavy-duty
industrial housing with rugged sealed ball bearings and an anti-backlash
flexible shaft coupling to isolate the internal high precision encoder from
both axial and radial shaft loading. The #470 supplies a quadrature output
with an index pulse, and optional line driver output.
Optional
Shaft Extension
(Double Ended)
0.70"
0.10"
Logic 1
Logic 0
Output B
180˚ Nominal
Index Z
Clockwise Rotation
Standard Output:
Available on #380-standard
50% duty cycle square wave output signal in either
direction of rotation. (Output A)
Quadrature Output:
Available on #380-quadrature option
Provides two square wave output pulses offset from
each other by 90°. The pulses lead or lag each other,
depending on the direction of rotation. (Output A & B)
Quadrature Output with an Index Pulse:
Available on #470 encoder
In addition to the two square waves provided from
the quadrature output (Output A & B) this gives one
index pulse per revolution (Index Z)
#470 Dimensional Drawing
#380 Dimensional Drawing
Electrical
Connector
90˚
Output A
4 Holes Equally
Spaced On 2.920
Dia. B.C. Clearance
for 10-32
0.375"
0.90"
1.50"
0.30"
0.966"
0.875"
45º
2.25"
2.25"
0.050"
1.250"
1.032"
6-32 Tap
0.312" Deep
4 Mounting
Holes on a
2.000 BC *
0.625"
0.25"
2.25"
#380 NPN Collector Output
0.50"
0.375"
0.072"
Wiring Color Code
6-pin Connector
A . . . . . . . . . . Common. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Black
B . . . . . . . . . . V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Red
C . . . . . . . . . . Index Pulse (Optional) . . . . . . . . . . . . . . . . . Yellow
D . . . . . . . . . . Output A . . . . . . . . . . . . . . . . . . . . . . . . . . . White/Clear
E. . . . . . . . . . . Output B (Optional) . . . . . . . . . . . . . . . . . . . . Green
F. . . . . . . . . . . No Connection. . . . . . . . . . . . . . . . . . . . . . . . . . N/C
6111 Blue Circle Drive
Minnetonka, MN 55343
Phone: 952-930-0100
Fax: 952-930-0130
ISO9001:2000 Certified
0.250"
1.032"
2.50"
2.50"
#470 NPN Collector Output
Wiring Color Code
7-pin Connector
A . . . . . . . . . . Data A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . White
B . . . . . . . . . . Data B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Blue
C . . . . . . . . . . Index Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yellow
D . . . . . . . . . . V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Red
E. . . . . . . . . . . No Connection. . . . . . . . . . . . . . . . . . . . . . . . . . N/C
F. . . . . . . . . . . Common. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Black
G . . . . . . . . . . Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Green
Free Catalog and Application Assistance
1-800-328-6170
Visit Us Online:
www.electro-sensors.com
Rotary Shaft Encoder
Flexible Shaft Coupling
Shaft end Adapter
(Stock #312-000800)
Flexible shaft coupling is spiral-cut to compensate for shaft misalignment.
It allows for a 1/32” offset and up to 5° of angular compensation.
(Stock #312-001000)
When using a shaft end adapter, the end of the monitored
shaft must be center-drilled to a depth of 1/2” with a No. 21
size drill and tapped for 10-32UNF.
6/32" Cap Screws
10-32 UNF
1.28"
.375"
0.375"
0.625"
Aluminum Alloy
1"
1.75"
0.75"
0.375"
Cold Rolled Zinc Steel Plated
Encoder Wiring Diagram
+ VDC
*
Mounting Options
• Encoder Mounting “L” Bracket (Stock # 260-004400)
• 5PY Tach Adapter (Stock #260-004200)
Mounting plate and hardware needed to mount encoder
to a 5PY Tach
Mounting Flange, making them interchangeable with
5PY DC Tach Generators.
Output (A, B, Z)
Maximum Sink
Current 100mA
Common
*External pull-up resistors are not required if the encoder is used with another
Electro-Sensors product. Resistors are necessary if the encoder is used as a
stand-alone pulse generator. Maximum recommended current output is 100mA.
Suggested resistor value is 2.2KΩ.
Consult with factory for dimensional and sizing information.
#380 Shaft Encoder • General Specifications
Input
Voltage........................................................ 5-28Vdc
Current ........................................................ 100mA
Ripple............................................................ 2%
Regulation ................................................ ± 5%
Output
Amplitude ................................................ 80% of Input voltage (min)
Type .............................................................. Open Collector, NPN
Current ........................................................ Sink 100mA (max)
Polarity ........................................................ Positive
Wave Shape............................................ Square Wave, 50% Duty Cycle
Pulse Rate ................................................ 0-20,000Hz, Standard model
Rise Time .................................................. 1 microsecond
Pulses per Revolution .................... 1-1,270 (specify)
Channel Types ...................................... Single or Quadrature (specify)
Mechanical Specifications
Shaft Speed ............................................ 6,000 rpm (max)
Shaft Rotation ...................................... Bi-directional
Bearings...................................................... Double sealed ball bearings
Radial Loading ...................................... 20 pounds operating
Axial Loading ........................................ 10 pounds operating
Shaft Size .................................................. 0.375” diameter
Operating Life ........................................ 100,000 hours average
Housing ...................................................... Anodized aluminum
Mounting .................................................. 3 sides with tapped threads
Connector.................................................. MS-3106A14A-6S-639
Cable.............................................................. 4-Connector Shielded, 10’ supplied
Operating Temperature ................ 0° C to + 70° C
#470 Heavy Duty Shaft Encoder • General Specifications
Input
Starting Torque .................................... 1.0 ounce-inches
Voltage........................................................ 5-28Vdc
Shaft Size .................................................. 0.375” diameter
Current ........................................................ 150mA maximum
Radial Loading ...................................... 30 pounds operating
Regulation ................................................ ± 5%
Axial Loading ........................................ 20 pounds operating
Moment of Inertia.............................. 0.2 ounce-inches2
Output
Acceleration............................................ 1 x 105 radian/second2
Type .............................................................. Two Square waves in quadrature
Operating Life ........................................ 100,000 hours average
Index.............................................................. One per revolution occurring
Housing ...................................................... Black non-corrosive finish
simultaneously with one of the
Mounting .................................................. Flange
output pulses
Current ........................................................ Sink up to 100mA
Polarity ........................................................ Positive
Environmental Specifications
Pulse Rate ................................................ 0-100KHz, opt. 0-200KHz
Operating Temperature ................ -10° C to + 70° C
Pulses per Revolution .................... 60-6,000 (specify)
Storage Temperature...................... -30° C to + 80° C
Mechanical Specifications
Humidity.................................................... 95% RH
Vibration .................................................... 10g @ 58 to 500 Hz
Shaft Speed ............................................ 6,000 rpm
Shock............................................................ 50g @ 11mS
Shaft Rotation ...................................... Bi-directional
Bearings...................................................... ABEC3 double sealed ball bearings
Specifications subject to change without notice.
ES-970 Rev F
6111 Blue Circle Drive
Minnetonka, MN 55343
Phone: 952-930-0100
Fax: 952-930-0130
ISO9001:2000 Certified
Free Catalog and Application Assistance
1-800-328-6170
Visit Us Online:
www.electro-sensors.com