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The CARTRIDGE DDR™ motor 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 CARTRIDGE DDR™ 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 CARTRIDGE DDR™ 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.

Animation (!! ZIP 9,5MB !!)

The CARTRIDGE DDR™ motor does not have bearings. It mounts to a machine using the machine's existing bearings to support the motor's rotor. The frame of the CARTRIDGE DDR™ motor mounts to a pilot and bolt circle on the machine frame much like a conventional motor.

The motor brings a quantum leap in cost effectiveness and ease of application when compared to any other direct drive configuration. Compared to the months of engineering and days of installation of a frameless motor and feedback device, the CARTRIDGE DDR™ requires a simple shaft and pilot configuration and less than 30 minutes from shipping container to operation. Thanks to the CARTRIDGE DDR™ motor, a significantly broader range of motion applications will benefit from the performance and reliability advantages of direct drive.

Inertia matching
Since the CARTRIDGE DDR™ 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.

A smart concept

It is a simple and quick procedure to mount a CARTRIDGE DDR™ motor to a machine:

• Slide the CARTRIDGE DDR™ 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 CARTRIDGE DDR™ and the SERVOSTAR® series drive amplifier

• Commence operation

The CARTRIDGE DDR™ motor can easily go from the shipping container to full operation in less than 30 minutes. This innovative design represents a quantum leap over the days of engineering, installation, and alignment required for Frameless DDR motors.

Torque density

Proprietary electromagnetic design gives CARTRIDGE DDR™ motors up to 50% more torque per motor volume than conventional DDR technology.

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

• One drive amplifier, the SERVOSTAR® drives the standard CARTRIDGE DDR™ product line

• UL and CE agency certifications are standard

• High energy permanent magnet brushless DC configuration utilizing a proprietary electromagnetic design gives CARTRIDGE DDR™ motors more torque per volume than conventional DDR technology.

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.

Technical Data

Nominal values at 40°C ambient temperature and 110 K temperature rise in the windings motor mounted to a reference mounting plate. Modern motors with compact designs may exhibit high surface temperatures, requiring a de-rating from the nominal values in some applications.

Dimensions