The AC650S Series is a 0.25 – 7.5kW compact drive for permanent magnet motors without sensor

The AC650S series is designed to save energy in general purpose applications by replacing induction motors with more efficient permanent-magnet motors. Easy to commission and maintain, it runs the motor without speed sensor. It is available up to 1.5 kW for 230V supply and up to 7.5kW for 400V three-phase supply.

The AC650S has many features and benefits, first its side-by-side mounting reduces the space used in a cubicle. Then there are the considerable energy savings achieved when using a permanent-magnet motor instead of an induction motor that can amount to up to 12%, thanks to the higher efficiency of permanent-magnet motors.

It comes with one PID controller which can be set to control process parameters like pressure or flow rate, there is a sensorless motor control removing the need for a speed sensor, which thus improves the system reliability. It is also very easy to commission thanks to built-in application macros for the most common applications and free set-up wizard.

Massive energy savings are achieved because the drive features of the advanced sensorless control algorithm for permanent-magnet motors. This coupled with the high efficiency of Parker permanent-magnet motors, the combination achieves high energy-cost savings. A further major benefit is its design of maximum compactness for smaller machines but with no need to have a forced ventilation. The Parker PM motors which are ideal when matched with this drive are up to 75 % smaller than the same power induction motors, which enables designers to make ultra-compact machines. Furthermore, the motors are available with a very economical brake option.

Life is made easy with the simple diagnostics and maintenance panel, which is achieved through the friendly operator station

A cloning module (option) allows to the operator to save, archive and clone up to 10 drive configurations without using a PC, so there is no need to be an expert to maintain the machine!

  • Used in combination with AC650S drives, the permanent magnet motors are specially recommended as alternatives to induction motors when energy savings are important, in the following applications: conveyers, fans, pumps, hydraulic systems, extruders
  • They are also ideal where compact machines are required, when compact drive solutions are mandatory or when room in cubicles is limited such as the following applications: machine-tools, packaging machines, conveyers, winders/unwinders, special purpose machines

Micromech prides itself on its first-class technical expertise and in-depth specialist motion control knowledge gained from experience accumulated over 35 years of working in motion control. Micromech is able to advise, specify and supply the optimum products to suit your application. Backed by an extensive range of stocked products, the Micromech team is able to react and respond to your needs immediately.

If you have any questions or would like to discuss any of these products further, please contact Alan Spinks on 01376 333333 or email

Coming soon from Trinamic!

The module TMCM-1061 which is a 2.8A/24V, motor mountable 1-axis controller/driver


  • 57|60mm / NEMA 23|24 stepper motor
  • stallGuard2TM and coolStepTM
  • spreadCycleTM chopper for highest smoothness, precision and high speed operation
  • up to 256 microsteps (51200 pos./rev.)
  • USB, RS485 and RS232 interface
  • Step&Direction input (optically isolated)
  • microPlyerTM 16-to-256 μStep-multiplier
  • general purpose I/O

Micromech is the UK and Eire distributor for these amazing products and if you would like a quote or to find out more contact Stirling Morley on 01376 333333 or email

‘Affordable Automation’

The Yaskawa Sigma-5 Mini, super compact servo drive is only 30 x 100 x 80mm

The well known Sigma-5 series is used by over 2,000 companies and now the line up includes the new, amazingly small Sigma-5 Mini with models ranging from 3.3W to 30W. The drives use limited space effectively, helping to reduce device footprints making them the best in class servo drives fitting for applications demanding ultra small motors, high accuracy, fast positioning and perfect multi-axes synchronisation.


The Mini drive supports DC power input as the control power is separated from the main circuit power supply, the main circuit power supply can be separately shut down when there is an alarm, therefore troubleshooting can be easily performed. The power supply voltage is for the main 24/48V DC and the control power 24V DC, power available is 3 – 30 W (11W and 30W type) and importantly the drive includes MECHATROLINK II and MECHATROLINK III interface, analogue voltage and pulse train reference. The Sigma-5 Mini drive also has a new simple tuning-less function: a new advanced auto-tuning and ‘one-parameter’ tuning.

In combination with the servomotors SGMMV there is an extensive line-up of super compact, super small capacity products. There are two flange sizes (15mm and 25mm) available, 24 VDC and 48 VDC input, plus 200 VAC input and a brake for the 25mm version. The motors have high resolution of 17-bit (131,072 pulses/revolution) and absolute value serial encoder for high-precision positioning. SERVOPACK parameter settings also enable use as an incremental type of device. They are high-speed (rated speed 3000 rpm and maximum speed 6000 rpm) so improving device take up time. The small, high performance servos can be powered by batteries thus allowing for an upgrade to clean room robots, automated guided vehicles (AGV) and other battery driven transportation systems.

This impressive range meets many customer applications and requirements being most useful for situations that require compactness or the use of DC input. From semiconductor production, chip mounting devices and inspection equipment requiring high speeds and responsiveness, to simple positioning and high-speed operation applications this system is unbeatable.

The Sigma-5 servo system fits is highly suitable in motion applications demanding ultra small motors and drives, high accuracy, fast positioning and perfect multi-axes synchronisation. There are clearly many such applications including:

Automated guidance vehicles (AGV) Semiconductor production PCB assembly SMT placement Wafer processing Feeder
Liquid crystal production Chip mounting Inspection and measuring devicesn Σ-V Mini Erosion machines-V Mini Biomedical devices Printing and packaging machines Welding equipment Dispensers, scribers, electrode TAB bonding, Winding machines, spring makers Σ-V Mini

Micromech supplies world-leading servo drive technology and linear products. Micromech is the UK distributor and integrator for Yaskawa Electric, if you require more information about these exciting products then contact Stirling Morley on 01376 333333 or

‘Affordable Automation’