OPE2275S-128 Optek, OPE2275S-128 Datasheet - Page 4

• Manufacturer Part Number: OPE2275S-128
• Description: Encoders Encoder, 128 PPR Dual Channel
• Manufacturer: Optek

Specifications of OPE2275S-128

• Number Of Channels: 2
• Mounting Style: SMD/SMT
• Output: Analog
• Shaft Type: Extended
• With Switch: Without
• Supply Voltage: 5 V
• Operating Temperature Range: 0 C to + 85 C
• Product: Optical
• Pulses Per Revolution: 128
• Termination Style: Stick On Adhesive
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Incremental Hollow Shaft Encoder
OPE1275H Single Channel (Tachometer)
OPE2275H Dual Channel
Timing Diagram:
Hollow Shaft Assembly Instructions:
Adhesive Cover
Issue A.4
Page 4 of 4
Encoder Wheel
Aperture Plate
Reflective Lid
#2 screws
Assembly
Base Unit
10/09
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Phone: [phone] or [phone]
Make sure the kit has all required parts:
1. Peal the protective covering from the adhesive on the
2. To center the Base unit, carefully slide the Base Unit over
3. Place the Aperture Plate on the Base Unit.
4. Slide the Encoder Wheel Assembly over the motor shaft
5. Carefully place the Reflective Lid on the encoder (rotate
6. Connect the electrical interface to the encoder.
Timing Definitions:
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back of the Base Unit.
the flange on the motor and press firmly.
until it almost touches the Aperture Plate.
as necessary to align) and attach with 4 #2 self tapping
screws (provided).
PPR = Pulses Per Revolution
Electrical Degree (°e) = 1/360th of 1 cycle
Cycle = 360 electrical degrees (°e)
Symmetry = Relationship between X & Y in electrical
Position Error = The difference between the actual
Quadrature: The lead or lag difference between
Cycle Error = The difference between the actual shaft
Rise Time = Time required to switch between 10% and
Fall Time = Time required to switch between 90% and
1 each Base Unit
1 each Base Unit Alignment Tool
1 each Aperture Plate
1 each Encoder Wheel Assembly
1 each Wheel Assembly Alignment Tool
1 each Reflective Lid
4 each #2-56 self tapping screws
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
FAX: [phone] [e-mail] www.optekinc.com
degrees (°e).
shaft position and the position indicated by
the encoder cycle count.
channels “A” and “B” in electrical degrees
(normally 90°e)
rotational position and the cycle count
rotational position.
90% of the highest to lowest signal levels.
10% of the highest to lowest signal levels.