Stepper Motor Controllers and Drives
Micro-Stepper Drive comes in 2.5 x 1.60 in. package.
Press Release Summary:
StepNet(TM) Micro module drives 2-phase size No. 15-23 stepper motors in CANopen networked, multi-axis systems and can operate as stand-alone motor drive. From PCB-mount package, product employs field-oriented control, electronic damping, and adjustable detent torque compensation. It can deliver 2 A continuous and 3 A peak current, operating from 20-75 Vdc, and uses Java software components to automate motion sequencing.
Original Press Release:
Micro-Stepper Drive Shrinks WAFER FAB Systems
Stepnet(TM) Micro stepper-motor drive packs multi-axis CANopen net- working and stand-alone drive versatility into 2.5" x 1.6" footprint
SUMMARY
Copley Controls introduces the ultra compact Stepnet(TM) Micro stepper drive for high density, cost sensitive applications in medical o test o laboratory o textileso vending. Operating mode flexibility enables the drive to be configured as a traditional stepper, a CANopen networked drive or stand-alone indexer. Advanced current-control algorithms deliver smooth motion. Servo Mode operation with encoder feedback can improve stepper motor performance by an additional 40%. Stepnet(TM) Micro's tiny footprint enables integration in a printed circuit board with I/O, control, and power supply circuits, simplifying equipment miniaturization. Java-based configuration software makes system commissioning fast and simple. Intuitive indexer software enables easy creation of powerful sequences of motion commands.
Canton, MA, November 2nd , 2004-Copley's new StepNet(TM) Micro module drives two-phase size #15 - #23 stepper motors in CANopen networked multi axis systems. The modules can also operate as stand-alone motor drives, responding to Step-and-Direction commands as well as A/B quadrature signals from a master encoder. StepNet(TM) Micro drives will also operate a stepping-motor as a brushless servomotor, using feedback developed by a motor-driven encoder. An incremental encoder interface is available with a programmable tracking window for stall detection.
Embedded intelligence enables each StepNet(TM) Micro drive to execute point-to-point moves with S-curve profiling. More complex PVT profiles, defined by a series of position/velocity/time points, are executed using polynomial interpolation for best fit contouring. CANopen DSP402 protocol enables multiple steppers to be synchronized for coordinated multi-axis control.
StepNet(TM) Micro drives employ field-oriented control to maximize motor speed/torque performance. Electronic damping minimizes move times by reducing settling delays and mid-speed instability. The drives operate motors in full step and half step modes, plus micro stepping for enhanced resolution and minimal velocity ripple. Adjustable detent torque compensation reduces velocity ripple; trajectory profiling prevents loss of steps.
Set up is fast and simple using CME 2(TM) software operating under Windows®, and communicating with Stepnet(TM) Micro via an RS-232 link. CAN address selection is by digital inputs or may be programmed into the driver's internal flash memory.
Stepnet(TM) Micro operates as a Motion Control Device under the DSP-402 protocol of the CANopen DS-301 V4.01 (EN 50325-4) application layer. DSP-402 modes supported include: Profile Position Mode, Interpolated Position Mode (PVT), Profile Velocity Mode, and Homing Mode.
StepNet(TM) Micro drives deliver 2A continuous and 3A peak current and operate from 20 to 75VDC. In multi axis motion controls, the ability to operate all drives from a common 75VDC isolated DC supply cuts cost and reduces space.
Free Java Software Components Automate Motion Sequencing
Copley has included Java software components to the CME 2(TM) setup CD. The Java components enable a selection of motion sequences to be added the driver's command menu, vastly simplifying machine control functions. Automation system control computers can now select a pattern of positioning motions from the StepNet(TM) command menu and put them into action with a simple GO command. Elaborate computer software engineering is replaced by simple Java components; transmission of complex sequencing software to StepNet(TM) is eliminated.
Mechanical Design, Protection
StepNet(TM) drives are built in PC-board mounting packages measuring 1.60" (4.06) wide x 2.5" (6.35) long. The drives are protected against over-current, over-temperature, and incorrect operating voltages. They are further protected from short circuits between outputs, from output to ground, against over-temperature, and against incorrect operating voltages. A built-in computation algorithm monitors I2T heating to set motor current limits.
CME 2(TM) Software Automates System Setup
StepNet(TM) Micro driver users can automate otherwise time-consuming system setup and commissioning functions with Copley's CME 2(TM) software. The software, loaded into the user's computer, provides auto tuning of the current loop. User adjustable damping and the detent compensation are also provided. With adjustments completed, the software settings are stored in the amplifier's nonvolatile flash memory.
Software Libraries Speed System Implementation
Copley Controls has developed extensive libraries of motion control software (Copley Motion Libraries) and software COM objects (COM) to make system development fast and simple. The development of low-level code to control a CANopen network of intelligent drives is eliminated. All network management and trajectory planning is taken care of automatically by a few simple commands linked into the user's Visual Basic, LabVIEW or C++ application program.
Applications
StepNet(TM) drives permit the design of high-density control circuits for desktop and other compact equipment designs.
Delivery: Stock- 4 weeks ARO.
Contact: Dean Crumlish, Ext. 266
Copley Controls Corporation
20 Dan Road, Canton, MA 02021
Tel: 781 828-8090 o Fax: 781 828-6547
Internet: www.copleycontrols.com
Email: sales@copleycontrols.com
Price: (1 - 9): $286.00
