Brushless torque motor has integrated servo drive

The recently launched Megaflux MFH170i series brushless torque motors from Allied Motion Inc. are available from Heason Technology. The compact direct-drive system for high-torque applications in robotics, scanning, tracking and other high-precision motion systems comprises a powerful servo motor with an integrated digital servo drive and a high-resolution optical encoder as a completely integrated package.

This 170mm diameter motor is available in three stack lengths of approximately 114, 130 and 155mm with peak torque ratings of 8.5, 11.9 and 16.9Nm. Rated speeds are between 750 and 1000rpm, whilst the 360 line encoder has a programmable resolution of up to 59 million counts per rev. The MFH170i is packaged in a robust aluminium housing complete with a duplex bearing arrangement for axially and radially stable mounting. All models feature a large 63.5mm internal bore, allowing ample space for feed-through of electrical or fluid power services. The high-torque to inertia integrated servo motor requires a 48V DC supply voltage and also features an efficient motor constant rating so will suit mobile applications.

The Megaflux brushless torque motor-drive's impressive 20 kHz PWM servo control features Allied Motion's sinusoidal SVM commutation for smooth operation and fine positioning. A choice of position, velocity and current (torque) loops, with update rates of 500, 200 and 100ms, respectively, combine with primary and secondary command inputs that can be configured for analogue (12-bit) voltage or current control. Further possibilities for position control are available with CANopen or Modbus RTU fieldbus and .NET framework. Allied Motion's own INControl PC software is used for set-up and tuning via a built-in RS-232 port. For machine control of overtravel limits, datum switches and other exterior equipment, the controller also includes a complement of 6/3 programmable inputs/outputs and a single analogue output. Protection features include bus under- and over-voltage, short circuit, I2T as well as drive and motor over-current.

For further information about the Megaflux MFH170i series brushless torque motors please visit www.heason.com.

Heason Technology Ltd

Motion Solutions Centre
Spring Copse Business Park
Slinfold
RH13 0SZ
UNITED KINGDOM

+44 (0)1403 792300

sales@heason.com

www.heason.com

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