Turbo PMAC2 PCI

Product Description:

The Turbo PMAC2 PCI is a member of the Turbo PMAC family of boards optimized for interface to sinewave or direct-PWM servo drives and to pulse-and-direction stepper drives. Its software is capable of 32 axes of control. It can have up to eight channels of on-board axis interface circuitry. It can also support up to 32 channels of off-board axis interface circuitry through its expansion port, connected to ACC-24P or ACC-24P2 ISA-format boards (ACC-24 boards in PCI format are not yet available).

The Turbo PMAC2 PCI is a full-sized PCI-bus expansion card, with a small piggyback board containing the CPU board. This piggyback board occupies part of the next slot, but ½-sized boards are permitted in this next slot. While the Turbo PMAC2-PCI is capable of PCI bus communications, with or without the optional on-board dual-ported RAM, it does not need to be inserted into a PCI expansion slot.

Hardware Features:

80 MHz DSP56303 CPU (120 MHz PMAC equivalent)
128k x 24 SRAM compiled/assembled program memory (5C0)
128k x 24 SRAM user data memory (5C0)
1M x 8 flash memory for user backup & firmware (5C0)
Latest released firmware version
RS-232serial interface, PCI (PC) bus interface
One 16-node MACRO interface IC
Four channels axis interface circuitry, each including:
 - Three output command signal sets, configurable as either:
   + Two serial data streams to external DACs, one pulse-and-direction
   + Three PWM top-and-bottom pairs
3-channel differential/single-ended encoder input
Nine input flags, two output flags
Interface to two external serial ADCs, 8 to 18 bits
Two channels supplemental interface circuitry, each including:
 - 2-channel differential/single-ended encoder input
 - One output command signal set, configurable as pulse-&-direction or PWM top-and-bottom pair
Display, MACRO, muxed I/O, direct I/O interface ports
PID/notch/feedforward servo algorithms
Extended pole-placement servo algorithms
1-year warranty from date of shipment

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
• Interactive jog moves
• Optional 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
• Optional 35-term "pole-placement" servo filter

Commutation Features

• Sinusoidal commutation of AC servo motors
• Vector control of AC induction motors
• Digital current-loop closure with direct PWM output (PMAC2)

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 multi-tasking operating system
• 48-bit floating-point math for user programs
• Trigonometric and transcendental functions
• Automatic type-matching of different variable types

Feedback sensor types that can be processed

• Digital quadrature encoders
• Sinusoidal encoders, interferometers
• Resolvers
• Potentiometers
• LVDTs, RVDTs
• Parallel-format encoders, interferometers
• MLDTs
• Serial absolute encoders (e.g. SSI)

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)
• 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