NORD Drivesystems BU0300 - Manual (Page 6)

NORDAC trio SK 300E Manual
6 Subject to technical alterations BU 0300 EN
1 General information
The construction series NORDAC trio SK 300E is a combination of geared motor and fully functional
frequency inverter, with which process-based solutions can be implemented for decentral system concepts.
The microprocessor-controlled frequency inverters are used to control the speed of three-phase asynchronous
motors.
These devices are provided with sensorless vector current control system which constantly ensures an
optimised voltage-to-frequency ratio based on the simulated operation of a single three-phase asynchronous
motor. This has the following significance for the drive: Peak start-up and overload torques at constant speed.
Due to the modular technology units and customer units, this device series can be customised to meet
individual requirements of customers.
Due to the numerous setting options, all three-phase motors can be operated. The output ranges from 0.55 to
4.0kW
(3~ 380V...480V), 0.37 to 2.2kW (3~ 200V…240V) and 0.37 to 1.1kW (1~ 200V…240V) with
integrated line filter. The overload capacity is 150% for 30 seconds and 3 seconds for 200% peak loads.
The manual is based on the device software V1.9 R0 (P707) of the NORDAC trio SK 300E. If the frequency
inverter used has a different version, this may lead to some differences. If necessary, you can download the
current manual from the Internet (http://www.nord.com).
1.1 Overview
Properties of the basic device:
• High starting torque and precise motor speed control setting with sensorless current vector control
• Integrated EMC line filter for limit curve B1 as per EN55011
• Automatic measurement of stator resistance possible
• Integrated brake chopper for 4 quadrant drive
• Integrated controller for electromechanical motor brake
• 1 x digital input, 1 x relay message
• Additional customer unit modules with further inputs
• RS485 interface on M12 plug and on terminal
• Two separate parameter sets which are switchable online
The characteristics of the basic device with an additional technology unit or customer unit are described in
Chapter 3, 'Options'.
1.2 Delivery
Check the equipment immediately after delivery/unpacking for transport damage such as deformation or
loose parts.
If there is any damage, contact the carrier immediately and implement a thorough assessment.
Important! This also applies even if the packaging is undamaged.