The Commander S – AC Drive Controllers, Optimised for Simple Motion Cycles

Leading the way in putting you in charge of motor control and making your processes more efficient is the latest addition to the Nidec Control Techniques motor drive portfolio. With a comprehensive feature set optimised for simple motion cycles the Commander S Drive range provides a cost-effective solution for drive applications that require plug and play convenience straight from the box.

The Commander S drive is the first drive to come with a built-in Near Field Communication (NFC) App interface as standard. The Marshal app (which is downloadable for free on a mobile device for Android/OS) is a revolutionary way to communicate wirelessly with a motor drive using NFC, covering commissioning, monitoring, diagnostic and support. The NFC technology utilised in these versatile drives has a communication time of less than 0.5s, helping to speed up and simplify your set-up times considerably.

Sleek Design Simple Operation

The sleek curved design and small footprint of the Commander S range optimises component layout and with easy access to angled terminals and the click-on/click-off DIN rail mount make installation remarkably easy. With a wide range of power, voltage, mains filter options and frame sizes available to choose from you are certain to find a model to suit your application and using the Marshall App you can be up and running in under 60 seconds.

As you might expect from Control Techniques, the performance of the Commander S range is guaranteed throughout its whole lifetime and is packed with features to help save you time, space, energy and money.

See More at Kempstons

The Marshall App – revolutionising the motor drive interface

Marshal is the motor drive expert in your pocket. A content rich interface means you can easily commission, clone parameters, back-up settings, share data and configurations via Outlook & OneDrive, diagnose issues and create report logs/error reports, visualise settings and monitor the drive in just a few taps of your smartphone’s screen.

commander s

Marshall App Advantages

  • Power off commissioning with FastStart assisted commissioning
  • Advanced parameter settings, pre-set application configurations
  • Easy parameter cloning and transfer, simple back-up process
  • Share configurations via Outlook, OneDrive, WhatsApp, export as PDF
  • Guided diagnostics, error logs and active error diagnosis
  • Quick view of parameter settings and drive status, restrict access
  • Easily visualise I/O, motor and speed settings

Commander S Motor Drive Features

  • NFC communication App interface
  • Power range 0.18 to 4 kW (0.25 to 5 HP)
  • Supply requirements 100V (100-120 V), 200V (200-240 V) 400 V (380-480 V)
  • Marshal App interface enables drive set-up in only 60 seconds
  • FastStart commissioning menu – 4 simple steps to get your motor running
  • 3 frame sizes available
  • Simple setup routines tailored to your application
  • Inputs and outputs – 2 Analogue Inputs, 1 output, 4 Digital inputs, 1 I/O, 1 Relay
  • Fixed display with 4 control buttons
  • RJ45 connector for Modbus RTU
  • Intelligent fan control reduces energy usage
  • Integrated C1 EMC filter for residential installations
  • Choose your preferred interface; Marshal App, drive keypad, Connect PC Tool
  • Finger proof terminals
  • Restrict unwanted access via a PIN

commander s

The Commander S AC Drive has been designed for a wide range of industrial motor control tasks, including:

  • Fan, Pump, Compressors
  • Improved energy efficiency during low demand
  • PID functionality -advanced control, no need for an external controller
  • Avoid equipment resonant frequencies & reduce high-vibration levels
  • Catch an already spinning motor to reduce start-up time and increase productivity
  • Motor thermal protection prevents overheating during operation

Conveyors, treadmills, automatic doors & barriers

  • Reliable speed control with onboard communications
  • S-ramp acceleration/deceleration profiling minimising machine jerk
  • Linear V to F with a controllable boost to get the machine running
  • Drive overload capacity up to 150% for increased acceleration or load changes
  • DC braking with stop indication

Industrial Processing

  • Mixers, crushers, agitators, centrifuges, kneaders, spinning & braiding machines for textile
  • Ease of integration to external PLC or other systems with on board communications
  • Stability optimiser for improved motor control
  • Resistance compensation for excellent torque performance
  • Built-in EMC filter effectively reduces electromagnetic Interference

The Commander S is the next in line of a hugely successful portfolio of innovative advanced motor drive products from Nidec Control Techniques that are available to buy today from Kempston Controls, your trusted industrial processes and control supplier.

Buy Now at Kempston Controls


Get in Touch

Soft Starter issue? The Siemens Sirius 3RW5 Range is the Solution…

The Siemens Sirius 3RW5 range of soft starters, with their intelligent functions, offers the perfect soft starter alternative for almost any application, from simple installations to sophisticated drive requirements such as heavy-duty starting. These dependable soft starters allow you to start three-phase motors easily, reliably and smoothly. Packed with features the 3RW5 soft starters provide a range of features including automatic parameterisation, pump cleaning, and condition monitoring, making these soft starters ideal for pumps, compressors, fans, conveyors, wastewater systems and for applications the food and beverage industry.

Versatile, the Siruis 3RW5 range encompasses all of the performance classes up to 1,200 kW, ideal for a multitude of industrial applications a few examples are summarised below.

Compressor – Condition Monitoring
Designed to excel, you can evaluate the electrical data and motor active power of the soft starter, giving you the ability to condition monitor your equipment’s status. You can assess if a pump is running dry or a bearing is showing signs of fatigue and damage.

Conveyor Belt –  Automatic Parameterisation
The soft start-up of conveyor belts must constantly adjust to new conditions as the starting weight changes. Using the 3RW5 auto-parameterisation function the soft starter identifies the load conditions and sets the appropriate values for optimally starting.

Sawmills – Integrated Braking
Heavy saw blades used in industrial sawing installations need a soft starting function to protect electrical and mechanical systems and you need to be able to stop saw blades quickly, the 3RW5 soft starters automatically supports DC braking and reverse braking.

soft starter application

Wastewater – Pump Cleaning
In wastewater applications, dirt and particles can be deposited on the pump blades reducing capacity. The pump cleaning function prevents this; integrated measurement technology detects the dirt and changes the direction of rotation as soon as limits are exceeded.

Water Supply – Pump Stop
Shutting down water pump systems can be challenging, pumps in these installations can stop immediately resulting in water hammer in pipes, couplings and valves. To prevent damage the 3RW5 range of soft starters have a pump-stop function that makes it possible to bring pumps to a controlled stop.


SIRIUS 3RW55 High Performance Soft Starter

soft starter 3RW55The intelligent SIRIUS 3RW55 soft starter masters difficult start-up and stopping processes, integrated smart functions including pump cleaning, pump stop, automatic parameterisation and condition monitoring.

• 3-phase control for optimal motor starting
• Engineering in TIA Portal
• Various bus connections (PROFINET, PROFIBUS, Modbus)
• Integrated operator panel with display
• For drives in performance classes from 5.5 to 1,200 kW





SIRIUS 3RW52 General Performance Soft Starters


soft starter 3RW52The SIRIUS 3RW52 soft starter is the ideal alternative to star-delta starters. As an all-rounder, it’s applicable for any type of drive.

• 3-phase control for optimal motor starting
• Parameterisation over rotary setting elements
• Various bus connections (PROFINET, PROFIBUS, Modbus)
• Operator panel with optional display
• For drives in performance classes from 5.5 to 560 kW






Stacked with features and cutting edge functionality the Siemens Sirius 3RW5 range is the go-to-solution for all of your soft starting requirements. At Kempston Controls we have access to the entire 3RW5 range and with our expert technical and sales teams we can help you choose the perfect solution to your soft starting conundrum. Give us a call on +44 (0) 1933 411 411 or email Sales at to discuss your requirements today!

Enquire Now

Have you read these?

Charged Components

Turn it up!


Kempston Controls

Danfoss VLT and VACON Motor Drives – Perfect Control

Danfoss is one of the world’s leading suppliers of variable speed electrical motor drives, with an extensive range of low-power and high-power AC motor control solutions there is a drive for every application. Designed to optimise space, efficiency and ultimately save you money the VLT and VACON series of drives are the perfect controller solution for all your motor drive requirements, from the refrigeration of foodstuffs to harsh marine environments there’s a drive for you.

Dealing with innovation

Innovation never rests and new motor technologies are always emerging to help improve energy and process efficiency, such as Permanent Magnet (PM) motors and Synchronous Reluctance Motors, (SynRM). The VLT and VACON series of motor drives already have the capabilities built-in to control whatever motor technology your application demands with the optimum in performance and efficiency.

Good communication is vital

Communication is key and the VLT and VACON motor drives offer a wide variety of communication protocols which allow them to efficiently communicate over standard interfaces such as PROFINET and EtherNet/IP for industrial applications or BACnet/IP in building automation applications (communication options are model specific).  Whatever Danfoss AC motor drive solution you choose you can rest assured that the drive will integrate seamlessly into your chosen system.

The VLT and VACON drive range

The VACON Series Motor Drives

The Danfoss VACON series has been designed to reduce emissions, increase fuel efficiency and manage heat intelligently in a vast array of harsh environments.

Whether in marine and offshore, oil and gas, metal working, mining and mineral extraction, renewable energy and other heavy industries the VACON drive series steps up to the plate.  With a range of flexible communication options, easy programmability, compact size and reduced running costs, these abilities, along with the durable and robust design, form a solid foundation for optimisation of your process control methods in the harsh of environments.

Ideal for harsh and demanding environments including:

  • Marine and Offshore
  • Oil and Gas
  • Metals
  • Mining and Minerals
  • Pulp and Paper
  • Energy
  • Elevators and escalators
  • Chemical
  • Other heavy-duty industries


The VLT Series Motor Drives

Designed for servo-like performance without being overly complex, VLT drives are extremely energy efficient, compact in size with impressive easy to use functionality and a comprehensive range of connectivity options.  Extremely easy to install in a new installation or when retrofitting existing plant, the VLT range is the ideal electrical motor control solution for a wide variety of industrial and commercial applications.

VLT drives

The VLT series drive is Ideally suited for motor control applications in industries such as food and beverage, HAVC, refrigeration, material handling and many more. The VLT range comes in a huge range of variants so there is bound to be a motor drive that’s perfect for your specific application.

Perfect for the following industries:

  • Food and Beverage Water and Wastewater
  • HVAC
  • Refrigeration
  • Material Handling
  • Textile

Click here to see the range