3 Optional equiment
BU 0750 GB Technical design subject to change 25
3 Optional equipment
3.1 Modular subassemblies
The NORDAC SK 750E can be upgraded in various convenient ways to adapt it to all kinds of control proc-
esses. Features that can be added include modules for display, for control, and for parameterization.
Besides, modules for the processing of analogue and digital signals and all commonly used bus systems are
available, too.
For straightforward system configuration alphanumeric display and operating modules will be sufficient. Where
complex jobs have to be handled, users may choose among various interfaces connecting the inverter to a PC
or automation system.
Technology Units, SK TU2-... are snapped on to the frequency inverter externally where they are conven-
iently accessible. They are designed for manual control or parameterization or to enable connection of the in-
verter to a bus system.
Customer Units, SK CU1-... are plugged in inside the frequency inverter. They enable control and communi-
cation via digital / analogue signals or provide bus interfaces.
Special extensions (Extension Units, SK XU1-...) ensure special functions such as speed control with an in-
cremental encoder or positioning control with an incremental and/or absolute encoder.
Before you insert or remove a module, be sure to disconnect the inverter from main supply. The dif-
ferent slots are assigned to certain types of modules exclusively.
Technology units do not allow for remote control. They have got to be installed right on the inverter
The manuals on the various optional subassemblies will provide you with more detailed information.
- www.nord.com –
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