NORDAC ON / ON+ (SK 3xxP) – Manual with installation instructions
8 BU 0800 en-4521
1 General
The SK 300P series is based on the tried and tested NORD platform. The frequency inverters are
characterised by their compact design and optimum control characteristics, and have uniform
parametrisation.
The frequency inverters have sensorless current vector control with a wide range of settings. In
combination with suitable motor models, which always provide an optimised voltage/frequency ratio,
all three-phase asynchronous motors that are suitable for inverter operation and permanently excited
synchronous motors can be driven. For the drive unit, this means very high starting and overload
torques with constant speed.
The power range is from 0,37 kW to 0,95 kW.
This series of frequency inverters can be adapted to individual requirements by means of modular
assemblies.
This manual is based on the device software as stated in the version list (see P707). If the frequency
inverter uses a different software version, this may cause differences. If necessary, the current manual
can be downloaded from the Internet (http://www.nord.com/).
Additional descriptions exist for optional functions and bus systems (http://www.nord.com/).
Accessories
The accessories that are mentioned in the manual are also subject to changes. Current details of
these are included in separate data sheets, which are listed under www.nord.com under the heading
Documentation → Manuals → Electronic drive technology → Techn. Info / Data sheet. The data
sheets available at the date of publication of this manual are listed by name in the relevant sections
(TI ...).
The device is either mounted directly on a motor or in the vicinity of the motor (on the wall or on a
machine frame).
All electrical connections (power connections and control connections) are made with plug connectors.
This simplifies the installation of the device.
Parameters can be accessed as follows:
• Via Ethernet connection
The three Ethernet dialects Profinet, EtherNet/IP and EtherCAT are available for this.
• Via the diagnostic port D1
The diagnostic port is designed as an RJ12 port and offers the possibility of using the following via
an internal RS232/RS485 interface
– an optional SimpleBox or ParameterBox, or
– the NORDAC ACCESS BT (SK TIE5 BT stick), or
– a PC with the installed NORDCON software.
The parameter settings modified by the operator are backed up in the integrated, non-volatile memory
of the device.
The device is configured according to the customer’s individual requirements. The device equipment is
therefore realised ex works. Later retrofitting of options or device conversions are not planned.
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