Variable Frequency Inverters

Since our inception in this domain, we have been betrothed in providing top-notch grade Variable Frequency Inverters to our valued patrons. These are manufactured by a team of deft professionals using premium quality components. The offered inverters are widely used in electromechanical drive system to control speed and torque of AC motors. Furthermore, these Variable Frequency Inverters can be purchased from us at competitive prices.

Features of Variable Frequency Inverters:

•     Optimum performance
•     Easily maintenance
•     High strength
•     Longer life

Frequency Inverters Specifications

We are engaged in offering Frequency Inverters to our clients.

• Performance 0.25 - 22 kW
• Performance
• 0,25 .... 4,0 kW
• 1/3 AC 200 ... 240
• V 0,55 .... 22 kW
• 3 AC 380 ... 480 V
• Output frequency 0 ... 400 Hz

New Possibilities opened through Nord SK 500E

The compact product range of SK 500E has multiple solutions to offer at most cost-effective price. Without making any alterations in devices user interface, all applications have a suitable type due to the task oriented performance standard. Apart from being the best suited for simple solutions, SK 500E is also ideal for requirements full of complexities up to the positioning control. All this is due to rapid commissioning and simple parameterization that is for its being entirely automatic and having smart motor identification.

Basic unit also comes with an array of features:

•     Current vector control without sensor (ISD) has a high quality current control process
•     5 control inputs in total that can be parameterized for different analog and digital controlling functions
•     Features 1 analog output and 2 analog inputs
•     Auto motor-parameter identification
•     4 parameter sets can be switched online
•     Unified brake chopper for reformative operation of 4 quadrant generator
•     Process controller and PID controller
•     RS485 and RS232 (RJ12 connector) diagnostic interface
•     32 static frequencies (in binary code)
•     Motor potentiometer functionality
•     End limit switch assessment

SK 510E - Ultimate enhancement for Drive Safety

Here, a secure protection can be implemented against the restart of motor, where staff is required to work near the rotating machinery. SK 510E complies with the safety category 4 at maximum as per EN 945-1 (EN 13849-1) and is equipped with safe impulse block, made of electronic with no wearing sections. This enables permanent online availability with a cost-benefitting outcome by removing any need for contractor components.

• Basic equipment (SK 500E) as per above description
• Safety functions' safe stop is as per EN 954-1 (EN13849) that is maximum up to category 4 and stop category 0 and 1.

SK 520E, Extended features for Automation Integration and Speed Regulation

SK 520E offers a cost-orientation solution through an on-board CAN open interface, if an automation system integration is required. As a result, peripherals can be unified and inverters can easily be linked with each other. Incremental encoder input enables required speed regulation and torque (such as full torque down to 0 speed). Further, the RS485 interface and control signals provide superior level convenience.

•     SK 500E like basic equipment (as above)
•     Torque and speed control with incremental encoder input (TTL)
•     On-Board CAN open interface
•     2 added digital inputs  2 added digital outputs
•     RS 485 interface via terminals

SK 530E, Maximum configuration & Servo Functionality

SK 530E has an amalgamation of all functions of entire product range, including on-board CAN open interface, Safe Stop and incremental encoder input. Furthermore, the model features integrated positioning control for relative (step width) or absolute (finite axis) positioning. As per this concept, asynchronous motor solution replaces servo applications that help in saving significant costs.

•     SK 500E is the basic equipment
•     Safe stop of safety function is as per EN 954-1 (EN 13849) that has a stop category of 0 and 1 and max category of 4
•     Positioning control with POSICON
•     Torque and speed control with incremental encoder input (TTL)
•     On-board CAN open interface having 2x RJ45 connectors
•     2 extra digital inputs/ 2 extra digital outputs
•     RS 485 interface through terminals

SK 505E Online Availability in Automation Systems

Using 2 variants including SK 535E and SK 505E, inverter's control card can be supplied along with a distinct 24VDC supply that confirms high machine availability even at the time when power is switched off. All this enables separate commissioning of power parts and its control.

New SK 500E product family increases up to 22KW

Since end of year 2008, product series of SK 500E has been expanded with additional power ranging from 11kW to 22 kW. This expansion signifies a further advancement for an uninterrupted product series over a huge power ratings' range. SK 515E and SK 535E are two performance levels, into which these power ranges are divided.

SK 515E

•     SK 500E as basic equipment
•     Max category 4 and stop category 0 and 1 for Safety function, safe stop as per EN 954-1.
•     On-board CAN open interface with 2xRJ45 connectors
•     Optional control card for external 24V supply

SK 535E

•     SK 500E is the basic equipment
•     Safe stop on safety function as per EN 954-1 with up to max category 4 and stop category 0 and 1.
•     On-board CAN with open interface (2x RJ45 connectors)
•     External 24 V supply for the control card
•     POSICON Position control
•     Incremental encoder input (TTL) to control torque
•     Spare 2 digital inputs and 2 digital outputs
•     RS 485 interface through terminals

Technical Specification

Voltage:	1-110-120V / 1/3-200-240V / 3-380-480V
Control terminals:	5-8x DI / 2-3 x DO / 2xMFR / 2xAIN , 1X AOUT
Encoder interfaces:	TTL RS422 / SIN/COS / SSI / BISS / Hiperface / EnDat 2.1 / CANopen
Sizes:	11

• Performance: 0.25 - 160 kW
  
• Protection class: IP20

 

FAQ

1.What is a Variable Frequency Inverter?

 

Ans - A Variable Frequency Inverter is an electronic device that changes the frequency of an alternating current (AC) input to produce a desired output frequency and voltage. It is used to control the speed of motors and other electrical devices, as well as to power electrical systems.

2.What are the advantages of using a Variable Frequency Inverter?

Ans - The advantages of using a Variable Frequency Inverter include increased energy efficiency, improved control and flexibility, better motor performance, and reduced maintenance costs.

3.What are the differences between a Variable Frequency Inverter and a DC to AC Inverter?

Ans - The main difference between a Variable Frequency Inverter and a DC to AC Inverter is that a Variable Frequency Inverter is capable of changing the frequency of the output signal, whereas a DC to AC Inverter will always output a fixed frequency. This allows for more precise control and improved performance.

4.What safety precautions should be taken when working with a Variable Frequency Inverter?

Ans - When working with a Variable Frequency Inverter, it is important to ensure that the electrical system is properly grounded, that all wiring is properly insulated, and that all safety guards are in place. It is also important to be sure that the inverter is rated for the application and that it is properly connected to the load.