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16 Axis
Part Number: GBD4-C0-400-00000000  

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The Geo Brick LV (Low Voltage) combines the intelligence and capability of the Turbo PMAC2 motion controller with advanced MOSFET technology, resulting in a compact, smart 4-, or 8-axis servo drive package. The flexibility of the Turbo PMAC2 enables the Geo Brick LV to drive stepper, brush, or brushless motors with unsurpassed pure digital DSP performance. The absence of analog signals – required for typical motion controller/drive interfacing – enables higher gains, better overall performance and tighter integration, while significantly decreasing costs and setup time. The Geo Brick LV’s embedded 32-axis Turbo PMAC2 motion controller is programmable for virtually any kind of motion control application. The built-in software PLCs allow for complete machine logic control. The Geo Brick LV supports the following types of motors: Three-Phase DC Brushless, servo, synchronous rotary/linear; DC Brush; 2-Phase Stepper. The Geo Brick LV also supports the following feedback types: Digital A Quad B; SSI; EnDat 2.2; BiSS B/C; HiperFace; Tamagawa; Panasonic; Sinusoidal; Resolver; Interferometers: Sinusoidal and Parallel; LVDTs, RVDTs, MLDts; Potentiometers.


Hardware Features

      Feedback Protocols Supported   
  • Digital A Quad B
  • SSI
  • EnDat 2.1/2.2
  • BiSS B/C
  • HiperFace
  • Tamagawa
  • Panasonic
  • Matsushita (Nikon D)
  • Mitutoyo
  • Sinusoidal
  • Resolver
  • Interferometers: Sinusoidal and Parallel
  • Potentiometers
  • Yaskawa Sigma II/III/V

      Motor Types Supported   
  • Synchronous three-Phase AC/DC brushless servo (rotary or linear)
  • DC Brush
  • 2-Phase Stepper

      Amplifier Ratings   
  • Output Current
  • 5.0 A Continuous/15.0 A Peak
  • Output Power
  • 0.33063 kW (0.443 HP)

      Other Hardware Features   
  • Up to eight encoder inputs, and one handwheel quadrature input
  • Additional encoder inputs can be obtained through MACRO connectivity
  • Up to 32 inputs and 16 outputs (Sinking or Sourcing)
  • Additional digital I/Os can be obtained through MACRO or ModBus connectivity
  • Up to 4 x 16-bit analog inputs, 8 x 12-bit analog inputs, 4 x brake/ relay outputs, and 5 x 12-bit filtered PWM (±10V) outputs
  • USB 2.0, Ethernet 100 Base T, RS232, DPRAM (required for NC software/applications), MACRO, ModBus
  • Dynamic Braking feature (optional) shorts motor leads together when the amplifier is disabled in order to prevent free coasting
  • Safe Torque Off (STO) feature (optional) fully disconnects the motor from the amplifier and deactivates Dynamic Braking to permit the motor to freely coast

Software Features

      Trajectory Generation Features   
  • Linear interpolation mode with S-curve accel./decel.
  • Circular interpolation mode with S-curve accel./decel.
  • Rapid point-to-point move mode
  • Cubic B-spline interpolation mode
  • Cubic Hermite-spline (PVT) interpolation mode
  • Automatic move-until-trigger functions with hardware capture
  • Dynamic destination alteration
  • Interactive jog moves
  • Multi-move lookahead for velocity and acceleration limiting

      Servo Features   
  • Standard digital PID feedback filter
  • Velocity, acceleration, and friction feedforward
  • 2nd-order notch/low-pass filter
  • Gains changeable at any time
  • Programmable input, integrator, and output limits
  • Alternate 30-term “pole-placement” servo filter
  • Alternate user-written, high-level “Open Servo” algorithms

      Commutation Features   
  • Sinusoidal commutation of AC servo motors
  • Vector control of AC induction motors
  • Digital current-loop closure with direct PWM output (PMAC2)
  • Pulse and direction (PFM) control of stepper motors

      Compensation Features   
  • Position compensation tables (1D & 2D)
  • Torque compensation tables
  • Backlash compensation
  • Tool radius compensation

      Safety Features   
  • Hardware and software overtravel limits
  • Amplifier enable/fault handshaking
  • Following error limits
  • Integrated current limit
  • Encoder loss detection (some versions)
  • Watchdog timer
  • Program and communications checksums

      Computational Features   
  • Real-time multitasking operating system
  • 48-bit floating-point math for user programs
  • Trigonometric and transcendental functions
  • Automatic type matching of different variable types (e.g. integer, floating point)

      Coordination and Master/Slave Features   
  • User-defined coordinate systems for automatic coordination of axes
  • Separate coordinate systems for independent motion of axes
  • Multi-motor axis support (e.g. gantries)
  • Dynamic axis transformations (e.g. offsets, rotations, mirroring)
  • User-written forward and inverse-kinematic algorithms for non-Cartesian geometries
  • Electronic gearing (no programming required)
  • Electronic cams with programmable profiles

      Motion Program Features   
  • High-level programming language
  • Automatic sequenced execution of moves
  • Calculations and I/O synchronous to motion
  • Axes programmed in user engineering units
  • Motion values as constants or expressions
  • Automatic coordination of multiple axes
  • Ability to execute G-code programs

      PLC Program Features   
  • Execution asynchronous to programmed motion
  • I/O control as in hardware PLC
  • Executive functions for standalone applications
  • Safety and status monitoring
  • Servo gain scheduling
  • Data reporting functions
  • Access to all registers in controller

  • Axes: 8 (default = 4)
  • CPU: 240 MHZ CPU, 4Mx8 flash (80 MHz, 1MB flash standard)
  • Dual Port Ram (required for NC program)
  • Digital I/O (additional): 16 inputs (12V-24V), 8 outputs (24V @ 0.5A)
  • Analog Inputs: 2 or 4 channels, +/- 5V, 16 bit resolution
  • Analog outputs: 2 or 4 channels , +/- 10V, 12 bit resolution
  • RS232 interface
  • MACRO (Fiber Optic or RJ45)
  • Modbus TCP Master/Slave communications
  • FieldBus: DeviceNet, Profibus, EtherCAT, CanOpen, CC-Link
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