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I/O option module for PacDrive iSH Intelligent Servo Module reduces installed system costs
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| The average number of servo drives installed per packaging machine is increasing. And that results in larger electrical cabinets to hold additional amplifiers, more and heavier gauge power cables, more sensors and therefore more I/O. ELAUs new PacDrive iSH Series Intelligent Servo Modules resolve all these issues, reducing component cost, installation labor, cabinet size and footprint. Most recently, ELAU has developed an I/O module as an option for its iSH servo modules that replaces distributed I/O blocks as well as separate device bus cabling.
ELAU technology has consistently enabled modular designs for packaging machinery, a trend which appears to be the future for a broad range of machinery types. And the company recognized the advantages of integrated servo motor/dsrives early on. By 2003, ELAU had introduced the IP67 rated PacDrive SCL-055 integral servo motor/drive, purposed-built for rotary capping and labeling applications.
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A shared power supply, hybrid cable with distribution modules and intelligent servo modules comprise an integrated system, which can be supplemented by an I/O option module. | | | The PacDrive iSH servo modules are the direct descendents of this breakthrough technology, only designed for a broad range of packaging applications. Combining servo motor and drive electronics in self-contained modules, the PacDrive iSH are connected directly to PacDrive automation controllers by a digital motion bus.
The cabinet space once occupied by servo drives now houses only the controller and a shared power supply for up to 16 iSH servo modules Hybrid, quick-connect cables carrying power, I/O signals and motion network connect the controller and power supply to IP65 sealed distribution modules mounted remotely on the machine frame. There, interchangeable cables drop down to each servo module in a tree or line topology, or a combination of both. he intelligent servo modules have all of the functionality of a PacDrive MC-4 servo drive and are readily integrated into the same control system.
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| Freely configurable I/O functionality
The I/O option module goes beyond distributing the drive electronics, replacing separate distributed I/O modules and device bus, using the motion bus to link up to a maximum of 8 sensors or actuators per module using popular M12 plug connectors. All eight connections can be defined as inputs or outputs, maximizing flexibility.
Coupling the I/O layer with the drive technology streamlines modular machine automation. A single hybrid cable combines the power, motion and I/O communications. No encoder cable is required since the feedback system is internal to the servo module. The resulting space and cost savings are measurable.
| | | 15% lower cost per axis plus I/O functionality
From a drive perspective, electrical cabinet space is greatly reduced, while cable runs are likewise reduced by about 70%. Wiring harnesses are smaller, conduit is not required, and installation times are greatly reduced. Overall cost per axis decreases by around 15% compared to conventional servo drives, even before considering significant engineering and I/O system savings.
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