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In addition, there is no loss of energy in the control
cabinet . In conventional drive systems, heat dissipation can lead to high
temperatures in the control cabinet and require a cooling system. With drive
technology without a control cabinet, cooling equipment is often unnecessary.
This removes the energy consumption associated with cooling and further
improves energy efficiency.
In addition, the power supply module, designed for a voltage
range of 380 V to 500 V , can be used worldwide. It produces a regulated DC bus
voltage for each drive. Whatever the mains voltage, the machine supplied will
have the same performance. Thanks to this regulation, the module is resistant
to variations in mains voltage.
However, active regulation of the power module has other
advantages. System disturbances are kept to a minimum, making other measures
unnecessary. The integrated regulation of the reactive current compensates for
the internal needs, but also the consumption of other inductive or capacitive
actors. The losses caused by the reactive current are thus completely
eliminated. Thanks to this intelligent regulation, the Smart Energy Mode system
makes optimal use of the energy stored in the DC bus. In addition to limiting
power peaks, it reduces average energy consumption. In practice, power peaks
can be lowered by 60% and average power by 30%. Since all AC power components
are designed for medium power, it may be possible to downsize under certain
circumstances.
All concepts of the Industry 4.0 require decentralized intelligence and strong
connectivity automation components. The future solutions of the Connected
Automation portfolio support all standard Ethernet-based real-time protocols
and are open to communication with higher IT levels.
In the future, it will be increasingly important that
solutions can connect vertically to the company's IT system, in order to put
Industry 4.0 into practice. The aim is to access the training directly by means
of the IT functions. Servo drives have decentralized intelligence and perform
their tasks autonomously , based on specifications issued by higher levels.
Their multi-Ethernet interface already supports horizontal and vertical
connection and allows full data exchange.
Read also: Understand
everything about Industry 4.0
In addition to all the possibilities of automation based on
programmable industrial controllers (PLCs) in accordance with IEC 61131-3 and
PLC Open standards, as well as on OPC UA technology, Rexroth is the leading
manufacturer of drives and controls with create a bridge between drive
technology and the IT world, through its Connected Automation portfolio . The
Open Core Interface for Drives interface technology integrated in Open Core Engineering allows
direct access to all drive parameters using high level language applications on
external devices such as PCs. Instead of independent API programming , for
example, it is enough to write macros in a standard spreadsheet to directly
retrieve and evaluate the data of a workout , for example, the energy
consumption. Using internally programmed applications for popular smartphones
and tablets, machine builders are already making commissioning,
parameterization and diagnostics of intelligent and decentralized drives from
Rexroth easy.
In short: cabinetless drive technology is the technology of
the future
Cabinetless drive technology meets many needs, for which
machine builders and end users have had to compromise until now. Now it is
possible to use more servo drives without reducing the production area due to
enlarged control cabinets. The opportunities offered by full modularization
reduce the labor and costs incurred by the subsequent expansion of existing
production lines. Compliance with safety standards at the individual drive
level, combined with an intelligent solution for easy switching between safety
zones, improves machine uptime.The simple exchange of energy within the drive
system reduces the average electricity consumption and limits power peaks. With
the multi-Ethernet interface and its own intelligence, Rexroth's cabinetless
drive technology can also be incorporated into future Industry 4.0
environments.
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