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Sigma-II Series SGM*H/SGDH USER'S MANUAL - Esco Drives ...

Sigma-II Series SGM*H/SGDH USER'S MANUAL - Esco Drives ...

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8 Operation8.4.6 Absolute Encoder Reception Sequence(b) PSO Serial Data SpecificationsThe number of revolutions is always output in five digits and seven digits (absolute position within one revolution).Data Transfer MethodBaud rateStart bitsStop bitsParityCharacter codeData formatNo. of revolutions: 0 to 9+ or -"P"Start-stop Synchronization (ASYNC)9600 bps1 bit1 bitEvenASC<strong>II</strong> 7-bit code13 characters, as shown below.Absolute position withinone revolution: 0 to 9CR000001010 1Data Stop bitStart bit Even parityNote: 1. The absolute position data within one revolution is the value before divided.2. The absolute position data increases during forward rotation. (The reverse rotation mode isinvalid.)(c) Incremental Pulses and Zero-Point PulsesJust as with normal incremental pulses, initial incremental pulses which provide absolute data are firstdivided by the frequency divider inside the SERVOPACK and then output.For details, refer to 8.5.7 Encoder Signal Output.Forward rotationReverse rotationPhase APhase APhase BPhase BPhase CtPhase Ct8-34

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