I/O for Flexible Automation In addition to 3 TTL inputs perchannel for limit and reference signals, 16 more I/O lines areavailable for flexible automa-tion tasks (trigger functions, etc.). The C-843 also features motor-brake output lines (e.g. for M-531.DDB stages). High-Speed Buffering Easy-to-Use Software /General Command Set (GCS) The integrated 32 k-sampletrace memory allows online buffering (read and write) at integer multiples of the servo- loop time of up to four inde-pendent system variables(positions, velocities, internal register contents, etc.) This allows the observation of the motion system and also per- forming customized trajectoryprofiles. For ease of operation, the C-843 is compatible with the PIGeneral Command Set, de- signed to allow flexible combi- nations with other PI motion controllers (fiber aligners, step- per-industrial motor controllers and piezo controllers for ultra-fast,sub-nanometer motion con-trol). For more information on GCS, see p. 9-28.Communications to/from theboard consist of packet-basedmessages passed via memoryaccess. An interrupt line is pro- vided so that the chipset can signal the PC when special conditions arise, such as recep- tion of an encoder index pulse.For system programmers the C-843 offers direct access to the DSP.In addition to an ample array ofsoftware tools, such as LabView™ drivers and DLL libraries, the C-843 comes with the PIMikroMove

Updated

C-843

Servo Motion Controller/Driver PCI Board for 2 / 4 Axes

Ordering Information C-843.21 Industrial dc motor Controller PCI PC Board,2-Axis C-843.41 DC-Motor Controller PCI PC Board,4-Axis C-843.JS Joystick and PCI Interface Board for C-843 Motor Controller C-843.41 DC-motor controller board with M-110.DG linear stage, M-235.5DG heavyduty industrial linear actuator, M-511.DD direct drive translation stage and M-501.1DG verticalstage. No external amplifier is required to drive any of these or other PI stages.Small motors are driven through the C-843’s onboard linear amplifiers, direct-drivePI stages (e.g. M-511.DD) employ ActiveDrive™ controlled off the C-843’s PWM outputs.

Two and Four Axis Version Very Cost-Effective: Servo amplifiers On-Board Additional PWM Outputs for High-Power Motors

® operatingsoftware, which provides a convenient interface for stage operation including tuning tool, joystick operation, termi- nal and macro editor.To facilitate setup, any support-ed PI micropositioning system just needs to be selected from a PIMikroMove

Trapezoidal Curve, S-Curve and Velocity Profile

High-Performance Pid control

32 kSamples RAM for High-Speed Buffer Operations

The C-843 employs a fast DSP(digital signal processor) pro- viding high-performance PID motion control with many options for trajectory genera- tion and filter settings for supe- rior positioning and tracking accuracy. Position, velocity,acceleration and several othermotion parameters can be pro-grammed individually for each axis on-the-fly. High-band- width counters (5 MHz) sup- port differential encoder feed- back (incremental rotary en- coders or linear scales) for fast and accurate positioning.

16 I/O Lines for Flexible Automation Fast PCI communication, 120 µs for position read Motor-Brake Control Output Extensive Software Support General Command Set (GCS) Compatible (see p. 9-28)

® menu and alldefault control parameters will be set. The C-843 PCI motion control-ler card drives up to 4 axes of micropositioning equipment. Because there is no need for external servo-amplifiers, thisnew card is a very cost-effec-tive, easy-to-set-up solution. On-Board Servo-Amplifiers Unlike other PCI controllercards, the new C-843 comes with on-board, low-noise linear amplifiers for the small dc motors used in most compact micropositioning stages and actuators.In addition, PWM outputs areavailable to drive more power- ful equipment (all direct-drive translation and rotation stagesfrom PI feature the integrated ActiveDrive™ PWM amplifiers, and also connect to the C-843 with no external power ampli- fiers).The PWM mode and linearamplifier mode can be pro-grammed individually for eachof the 4 (or 2) channels.
© PI 1998-2006.Subject to change without notice. This data sheet is superseded by any newrelease. The newest release is available for download at www.pi.ws. R1 06/08/07.0 9-8