Servo drive demonstrated at machine show
A
Baldor product story
Edited by the Engineeringtalk editorial team
Feb 17, 2006
Demonstration of Ethernet Powerlink servo drive for motion automation builders at Machine Building and Pneumotion 2006 from 15th to 16th February at Birmingham's NEC.
At Machine Building and Pneumotion 2006 (15th to 16th February at Birmingham's NEC), Baldor is demonstrating an Ethernet Powerlink servo drive offering a migration route to more performance levels for motion automation builders using positioning drives compatible with the Canopen DSP 402 standard.
Many replicating machinery builders use the Canopen Fieldbus standard because of its low cost per node, simple wiring and wide product support - from more than 400 vendors worldwide.
The DSP 402 profile for positioning drives is often used with an OEM's custom control software and hardware - an area in which many years of investment have often been made.
The decision of the EPSG - the group controlling the Ethernet Powerlink real-time Ethernet standard - to work with the Canopen standards body and adopt the DSP 402 profile (and the DS-301/DS-302 application layers) gives Canopen users a migration path.
It offers the potential to upgrade the network to a more sophisticated and higher bandwidth standard (100Mbit/s rather than 1Mbit/s maximum), with less disruption to the way OEMs build systems and to the control software.
"Replicating machinery builders can start to employ dual-standard DSP 402/Ethernet Powerlink drives in their equipment immediately, while they port their control system software to a new generation core and take advantage of the new Ethernet environment," said Baldor's David Greensmith.
"A phased changeover like this makes it easier to upgrade, allowing machine evolution to happen in predictable and manageable steps".
In addition to easing system migration to Ethernet, Baldor's Microflex e100 dual-standard servo drive's Canopen interface gives users the flexibility to upgrade a control system architecture in stages.
In an Ethernet Powerlink system, the drives integrate an Ethernet Powerlink to Canopen gateway.
The drive has Canopen DS-401 I/O management capability, so if there is no Ethernet-compatible equivalent available for an existing system function, or if Canopen-based components remain the most cost-effective choice, users are free to partition the system accordingly.
For example, there can be an Ethernet Powerlink core and drives, with subnetworks of Canopen I/O modules connected to drives.
Further potential gains are possible via Baldor's inclusion of motion control features on the drive, above and beyond those supported by the standard DSP 402 modes - homing, profile position, profile velocity and profile torque.
The drive supports a range of high-level motion types that can improve equipment performance, such as electronic gearing, clutch simulation and high speed inputs for registration control and anti-resonance digital filters.
To complement the drive, Baldor's Ethernet Powerlink motion controller provides manager support for Ethernet Powerlink and Canopen.
Called Nextmove e100, it can manage interpolated motion on up to 16 Ethernet Powerlink axes, and control many more in DSP 402 mode.
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