NORD Drivesystems BU0510 - Manual (Page 7)

1 General
BU 0510 GB-3911 Subject to technical alterations 7
1 General information
SK 53xE and SK 54xE frequency inverters are intermediate voltage circuit converters with fully digital
microprocessor technology for controlling the speed of 3-phase motors.
In combination with an incremental encoder or an absolute encoder the standard components form a high-
precision positioning drive:

The SK53xE provides 63 programmable absolute positions.

The SK54xE provides 252 programmable absolute positions.

By means of the position control, the position is maintained even with large load fluctuations.

Time-optimised and safe travel up to the target position by means of path calculation.

In addition to travelling to absolute positions, up to 4 step lengths (so-called position
increments) can be stored in the frequency inverter.

Required positions can also be transferred via a field bus interface.

The positioning function is available as a function extension for the SK 530E and above.
The parameters (P6xx) required for positioning are inserted into the existing inverter menu structure as an
additional menu group (Positioning).
The specified setpoint position can be input via the existing digital inputs, the Bus IO In Bits, or via the USS
protocol or other field bus system.
A switchover from speed control to position control (Positioning) can be achieved by switching over the
parameters.
Synchronous operation functionality between a master and one or more slave drives is possible via the
integrated CAN bus or RS485 interface. In addition, as an extension to the synchronous operation
functionality, the "Flying Saw" enables the slave to be deliberately and independently synchronised to or
uncoupled from the master.
A round axis function (Modulo axes) is also available for rotating platforms and similar applications. This
controls an endless axis with optimisation of travel. According to the required position, the drive rotates
clockwise or anticlockwise.
NOTE
This description (BU 0510) only contains a selection of the functions and parameters which are
specific and relevant for the positioning function. All standard functions and parameters can be
found in the manual (BU 0500).
Due to software updates the parameters described here may differ from those of your device.
Therefore care should be taken that both the current NORD CON version and the version of
your ParameterBox have the latest software version. In case of doubt, please contact your
local NORD agency.
The latest version of all descriptions can be found on the Getriebebau NORD GmbH & Co. KG
Internet page (
www.nord.com ).