Newport New Focus Picomotor 8743-CL, User Manual

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viii Preface
2.6 Specifications ..............................................................................26
2.6.1 Operating Limits* ............................................................26
2.6.2 Weight, Dimensions ........................................................27
3 Theory of Operation 28
3.1 How the Picomotor Actuator Works ...........................................28
3.2 Stepping the Picomotor with the 8743-CL Controller/Driver .....28
3.3 Closed-Loop Operation ...............................................................29
3.4 Status Indicator ............................................................................30
3.5 Power Supply ...............................................................................31
3.5.1 Fault Protection ...............................................................31
3.6 Input / Output Connections .........................................................32
3.6.1 USB .................................................................................33
3.6.2 Ethernet ............................................................................33
3.6.3 RS-485 .............................................................................33
3.6.4 Power ...............................................................................34
3.6.5 Picomotor Interfaces ........................................................34
3.7 Mounting the unit ........................................................................34
4 Initial Setup 35
4.1 Introduction .................................................................................35
4.2 Grounding ....................................................................................35
4.3 Power ...........................................................................................35
4.4 Connecting 8743-CL to a Computer via USB .............................35
4.5 Connecting 8743-CL to a Computer via Ethernet .......................36
4.5.1 Connecting to a Router ....................................................36
4.6 Picomotor Connections ...............................................................37
4.6.1 Motor Connectors ............................................................37
4.6.2 Feedback Connectors .......................................................38
4.7 Connecting Multiple Units to a Computer ..................................39
4.7.1 Using USB Hubs .............................................................41
4.7.2 Using Ethernet Routers/Switchers ...................................42
4.7.3 Using RS-485 LAN to Daisy-Chain ................................43
4.8 Connecting to the 8758 Hand Control Pad ..................................45
5 Computer Interfacing 47
5.1 Introduction .................................................................................47
5.2 Computer Interface Terminology ................................................47