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Easy To Install Direct Drive Motor Is A First

Edited by the Manufacturingtalk editorial team Jul 30, 2004

The Danaher Cartridge DDR motor combines the space saving and performance advantages of frameless DDR technology with the ease of installation of a full frame motor.

The Danaher Cartridge DDR motor now available from Micromech is the first in the industry to combine the space saving and performance advantages of frameless DDR technology with the ease of installation of a full frame motor.

Consisting of a rotor, stator, and factory-aligned high-resolution feedback device, the motor uses the machine's bearings to support the rotor.

An innovative compression coupling engages the rotor to the load and the frame of the direct drive mounts to the machine with a bolt circle and pilot diameter just like a conventional servo motor saving space and design time and simplifying the overall system.

The motor does not have bearings as it mounts to a machine using the machine's existing bearings to support the motor's rotor.

The frame of the motor mounts to a pilot and bolt circle on the machine frame much like a conventional motor.

This brings a quantum leap in cost effectiveness and ease of application when compared to any other direct drive configuration.

Up until now there was months of engineering and days of installation of a frameless motor and feedback device, the Cartridge DDR however just requires a simple shaft and pilot configuration and less than 30 minutes from shipping container to operation.

Features Two frame sizes, 246mm and 350mm * Three stack lengths in each frame size * Continuous torque from 50 to 510 Nm * Peak torque from 120 to 1017 Nm * Absolute position sine encoder with maximum resolution of 2,097,152 counts per revolution * UL and CE agency certifications are standard * High-energy permanent magnet brushless DC configuration utilising a proprietary electromagnetic design gives the direct drive motors up to 50% more torque per volume than conventional DDR technology.

Thanks to this novel arrangement a significantly broader range of motion applications will benefit from the performance and reliability advantages of direct drive.

Inertia matching Since the motor is directly connected to the machine, inertial matching is not required as it is on a conventional motor.

With direct drive, inertia miss match of 250 to 1 is common and miss match of 800 to 1 has been implemented.

Mounting Orientation The Cartridge DDR motor can be mounted with any orientation including either a horizontal or vertical shaft.

It is a simple and quick procedure to mount the motor to a machine: * Slide the motor onto the shaft * Bolt the housing to the machine frame * Torque the compression coupling * Unbolt the shipping clamp hardware and store it in the provided slots * Connect cables between the motor and the Servostar series drive amplifier * Commence operation Options * 480 VAC high voltage option expands the speed range.

230 VAC windings available, too.

* High speed winding option for the 13 frame size connected to the SERVOSTAR 640 drive amplifier extends the speed range of the larger frame motor.

* Hollow shaft option provides a 32mm through bore to allow process or wiring to run through the center of the motor.

Provision for mounting a rotary union to the shaft and housing is included.

Available July 2004.