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Copley Controls Encoder Guide
Absolute Encoders
Copley Controls
17
2.4: SSI Encoders (Type 12)
This section describes the use of Synchronous Serial Interface (SSI) absolute encoders with
Copley Controls drives.
2.4.1: SSI Encoder and Drive Communication
SSI encoders provide all digital one way communications to the selected Copley drive.
A train of clock pulses from the drive initiates the transmission of position data by subsequent
clock pulses. The clock and data are wired as differential pairs.
An SSI encoder should have a clock frequency in the range of 1 to 4 MHz. This allows all the data
to be transferred at a speed that is sufficient for the position loop update rate.
2.4.2: SSI Encoder Wiring Example
Below is a typical SSI encoder wiring diagram. See data sheets for detailed wiring specifications.
Summary of Contents for Serial Encoder
Page 1: ...Copley Controls Serial Encoder Guide P N 16 01055 Revision 01 May 2013...
Page 2: ...This page for notes...
Page 4: ...4 Copley Controls...
Page 8: ...About this Manual Copley Controls Encoder Guide 8 Copley Controls...
Page 10: ...Introduction Copley Controls Encoder Guide 10 Copley Controls...
Page 36: ...Absolute Encoders Copley Controls Encoder Guide 36 Copley Controls...