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| Motion Control |
Flexible electronics replace the mechanical shaft - The Electronic Line Shaft
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Mechanical drive solutions are complex and cost-intensive. They are subject to wear and are not flexible enough for today's market requirements. A product or format change consumes time and work resources and reduces production performance. Furthermore, required adjustable drives and additional electronics reduce the production efficiency and the use of conventional machines.
The future, however, is in complete systems with progressive mechatronics technology - "Shaftless Driven by Rexroth".
Mechanical drive elements in printing or converting machines are replaced by SYNAX 200 flexible motion control functions. In conjunction with highly precise digital servo drives, the "electronic line shaft" isolates the flow of power and synchronisation in an ideal way. SYNAX 200 makes the shaftless drive technology transparent by using digital communication.
This offers the user endless possibilities for a printing system that is entirely flexible.
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Virtual Master
SYNAX 200 calculates up to two "virtual master axes" per PPC motion control module. Individual machine modules or complete machine units can be easily and clearly integrated in linked and synchronized production processes.
With SYNAX 200, machines are positioned and preset individually or in groups; adjustment to new formats or synchronization to existing production processes can be done "on-the-fly". SYNAX 200 allows the user to control the most complex production processes for products from one or more production lines.
Cascading multi-turn masters are transmitted to the servo drives as digitally accurate command position values. The SERCOS interface as a drive bus (IEC 61491/EN 61491) ensures problem-free transfer to the individual drives of the machine units.
The characteristics:
- 2 cascadable master axes per motion control PPC
- Linkage of max. 32 motion control PPC
- 4 online switchable operation modes of the master axes
- 4 online switchable operation modes of the following axes
- Universal structure and high resolution of the electronics gears
- Electronic clutches
- Online switchable electronic cams
- Electronic high-speed cam switches
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Real Master
With the SYNAX 200 "real master" technology, shaftless electronically synchronized machines or machine modules can be used in conjunction with conventionally driven machines. To accomplish this, the position values are imported into the SYNAX 200 system with an angle transmitter at the "master" machine, and the master positions of the individual drives are created.
The extension or modernization of existing systems is easily and economically executed, and, in some cases, has only been made possible by this technology.
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Flexible and Extendable - The Motion Control Link
Complex automation tasks can be solved by connecting multiple PPC controls and masters. A PPC manages up to 2 cascading masters and a maximum of 40 slave axes in a SYNAX 200 ring. Up to 32 PPCs can be connected to each other using the cross-communication interface.
This allows the assignment of the master positions to the slave axes in various SYNAX 200 rings. The number of synchronized drives is almost unlimited and separating the machines into independent sections becomes possible.
Motion control groups can be closed with a single or double fiber optic cable ring. The double ring increases the error tolerance, since the failure of the communication between two PPC controls does not lead to a failure of the complete system. Therefore, the communication of the PPC group remains even if the control is switched off.
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