Servo Drives with Sinusoidal Commutation

DN Staff

April 7, 2011

1 Min Read
Servo Drives with Sinusoidal Commutation

GalilMotion Control'stwo multi-axis servo drives perform sinusoidal commutation. The AMP-43540contains four 600W servo drives and the AMP-43640 contains four 20W servodrives. Both models are sinusoidally commutated for minimized torque ripplecompared to drives using trapezoidal commutation. This is important forapplications using low friction linear motors.

The AMP-43540 and AMP-43640 4-axis drives areavailable as options for Galil's DMC-40x0 Accelera and DMC-41x3 Econo motion controllers with Ethernet. Designed to minimize space,cost and wiring, the drives reside directly inside the controller enclosure.The DMC-4040 4-axis controller and drive package dimensions are 8.1 x 7.3 x 1.7inch. Two 4-axis drives can also be installed inside the DMC-4080 8-axiscontroller package which measures 11.5 x 7.3 x 1.7 inch.

The AMP-43540 contains four 600W fully digital,transconductance amplifiers for driving brushless motors with sinusoidalcommutation. Each amplifier drives motors operating at up to 8A continuous, 15Apeak, 20-80V dc. The gain settings of the amplifier are user-programmable at0.4, 0.8 and 1.6 A/V. Both the switching and sampling frequencies are 33 kHz.The amplifier offers protection for over-voltage, under-voltage, over-current,short-circuit and over temperature. A shunt regulator option is available.

The AMP-43640 contains four 20W linear,transconductance amplifiers for driving brushless motors with sinusoidalcommutation. Each amplifier drives motors operating at up to 1A peak, 15-30V dcwith a gain setting of 0.1A/V.

When using the AMP-43540 and AMP-43640sinusoidal drives, hall sensors are not required for brushless motorcommutation. Galil provides commands for initialization of the motor using theencoder feedback.
Servo Drives with Sinusoidal Commutation

Servo Drives with Sinusoidal Commutation


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