New servo for multi-axis applications - Lenze i700 servo drives reduce cost
28 May 2012
The new i700 servo inverters from Lenze have a focus on reduced purchasing cost and reduced engineering costs as a result of easier handling. These drives deliver highly dynamic performance for multi-axis applications in a power range from 0.75 to 15kW. They are designed for machines with central control, for example palletisers, wrapping, robots and assembly machinery. One particular feature is the option of a double drive that gives the control of two servo axes from a single module. This reduces purchase cost and gives further savings in terms of panel space and installation time.
A typical i700 servo installation consists of a power supply module bookshelf- mounted with a number of single or double axis drives. Installation and handling is made particularly easy with keyhole mounting and fully pluggable connections. Connection between the modules is via a DC bus and hinged linking arms are easily set without the need for cables. Sharing the supply through the DC bus can lead to energy savings up to 40% by re-using the energy from axes that are braking loads.
The standard specification of the i700 servo inverters is high to enable excellent usability. Real-time EtherCAT high speed bus communications are fitted. Also integrated is RFI filtering, a brake chopper and control of a 24V electromagnetic motor brake. With a supply voltage range of 180-528V and capacity for TN, TT and IT networks, the drives are ready for use worldwide. The can be connected to synchronous servo motors and also standard asynchronous motors allowing PR-GSS-i700 reduced costs where highest levels of performance are not needed. Feedback can be by resolver, incremental or absolute encoder.
Performance of the i700 drives is exceptionally high. They have 32 bit resolution on all set-points and actual values. Cycle times for speed control are 125μs. It is easily possible to combine the high performance with a simple control system using the Lenze 3200C controller for PLC, motion and visualisation together with the System 1000 high speed I/O. On the output side a full range of servo and standard asynchronous motors plus gearboxes are available.
For further information, please contact Geoff Spear:
Fraser Road, Priory Business Park
Bedford MK44 3WH
Phone: +44 1234 321321
Fax: +44 1234 355299