PI E-727 - Page 4

User Manual
E727T0005, valid for E-727
BRO, 2019-06-28
Physik Instrumente (PI) GmbH & Co. KG, Auf der Roemerstrasse 1, 76228 Karlsruhe, Germany Page 4 / 240
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Wave Generator Examples ................................................................................................................... 104
Wave-Generator-Related Commands and Parameters ........................................................................ 112
Dynamic Digital Linearization (DDL) ................................................................................................. 114
Working Principle ................................................................................................................................. 114
How to Activate the DDL License .......................................................................................................... 117
How to work with the DDL ................................................................................................................... 118
DDL-Related Commands and Parameters ............................................................................................ 120
Controller Macros ............................................................................................................................ 121
Commands for Macros ......................................................................................................................... 121
Working with Macros ........................................................................................................................... 123
Variables .......................................................................................................................................... 130
Adjustment Procedures 131
ID-Chip Support / Stage Replacement ............................................................................................. 131
"Simple" Replacement .......................................................................................................................... 131
Upgrade or Repair of Stages ................................................................................................................. 132
Replacement of Tip/Tilt Platforms with Differential Drive ................................................................... 132
Servo-Controller Dynamic Tuning .................................................................................................... 134
Parameters to be Modified .................................................................................................................. 134
General Notes on Servo-Controller Dynamic Tuning............................................................................ 134
Adjusting the Notch Filter(s) in Open-Loop Operation ......................................................................... 136
Checking and Optimizing the Servo-Control Parameters ..................................................................... 140
SPI Interface 144
Definition of Terms .......................................................................................................................... 144
Overview .......................................................................................................................................... 144
Configuration Parameters ................................................................................................................ 145
Configuring the Usage of Received Data .............................................................................................. 145
Configuring the Limits for Position Scaling ........................................................................................... 145
Data Packet Definition ..................................................................................................................... 146
Data Frame ........................................................................................................................................... 146
CRC-16 Generation ............................................................................................................................... 146
Transport Layer ................................................................................................................................ 147
Data Segment 1 .................................................................................................................................... 147
Data Segment 2 .................................................................................................................................... 147
Connection Lost .................................................................................................................................... 150
Transport Layer Flow Charts ............................................................................................................ 150
Nomenclature ....................................................................................................................................... 150
Sender Flow Charts ............................................................................................................................... 151
Receiver Flow Charts ............................................................................................................................ 153
Application Layer.............................................................................................................................. 155
Axis Position Data Transfer ................................................................................................................... 155
OnTarget-Flag Transfer ......................................................................................................................... 156
Transfer of Servo-Mode Changing Commands ..................................................................................... 156
GCS Command Transfer ........................................................................................................................ 156