SICK AFM60B SSI Absolute Encoder
Overview

The AFM60B is part of SICK’s AFS/AFM60 series of high-resolution absolute encoders. It uses the SSI (Synchronous Serial Interface) communication protocol to deliver absolute position information. These encoders are designed for industrial applications requiring precision, reliability, and field programmability.
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Key Features & Benefits

High Resolution & Absolute Positioning
Capable of delivering up to 30 bits of total resolution (multi-turn + singleturn) when configured appropriately.
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Flexible, Programmable Variant
Many AFM60 SSI units (including B versions) are configurable in the field—parameters like resolution, direction of rotation, offset (preset), etc., can be adapted.
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Robust Industrial Design

Housing sealed to IP65 / IP67 to resist dust and water ingress.
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Rugged mechanical design, including provision for solid shaft or hollow shaft mounting options (depending on variant).
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Universal cable connection layout allowing radial or axial routing.
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SSI Interface & Signal Protocol
Standard SSI outputs (Data+, Data–, Clock+, Clock–) with defined pin assignments.
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Also includes SET input for electronic zeroing or presetting.
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Optional V/R̅ output for direction (when configured)
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Fast Initialization & Performance
Typical initialization times are short (in the order of milliseconds) depending on configuration and step count.
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Compact & Precise Mechanics
The encoder is dimensioned for tight installation environments, with detailed mechanical tolerances and pin layouts provided in manufacturer documentation.
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Typical Specifications (based on datasheet for AFM60B-BCPL032768 variant)
Parameter Typical Value / Range
Interface SSI (Synchronous Serial Interface)
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Pin / Wire Assignment Brown: Data−, White: Data+, Black: V/R̅, Pink: SET, Yellow: Clock+, Purple: Clock–, Blue: GND, Red: Supply Voltage
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Supply Voltage 10 … 30 V DC (typical for AFS/AFM60 family)
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Enclosure Rating IP65 / IP67
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Cable / Connection Cable outlet can be axial or radial with free routing; typical cable diameter ~5.6 mm with defined bend radius.
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Mechanical Tolerances & Dimensions Detailed dimensional drawings exist in datasheet (e.g. 63 mm, 72 mm dimensions)
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Applications

Position feedback and closed-loop control in industrial automation

Rotational axis measurement in machinery and motion systems

Integration into systems using SSI protocol for absolute encoding

Retrofit or new installations where absolute encoder feedback is required