ORMEC D-Series Servomotors

ORMEC's D-series AC brushless servomotors provide high torque-to-inertia ratios and excellent continuous torque and peak torque performance in a compact design. These industrial-quality servomotors incorporate high-energy, rare earth, neodymium-iron-boron magnets and a highly efficient stator winding design which results in excellent power density.

The D-series servomotors also completely eliminate brush wear maintenance problems, and feature extremely durable construction which includes heavy duty bearings.

Rugged MS connectors provide reliable interconnections to both motor and optical encoder (except for DE-Series with IP-67 option selected).

Features

• Continuous stall torques from 3 to 665 in-lb (0.32 to 75 N-m)
• High peak torques from 8 to 1,128 in-lb (0.96 to 127 N-m)
• Output power from 100 to 11,000 watts (0.13 to 15 HP)
• Compact design with 40% less volume than previous design
• High maximum speeds from 3,000 to 4,500 RPM
• Encoder resolutions up to 32,768 counts per revolution
• Optional absolute encoders feature multi-rev operation
• Class B or F insulation providing long winding life under rated operating conditions
• Minimum torque ripple & cogging for smooth low-speed performance
• Totally Enclosed Non-Ventilated (TENV) standard IP-67 except shaft opening, optional shaft oil seal is available.
• Fail-safe holding brakes as option

Motor/Drive Combinations
The performance of these servomotors is a direct function of the factory-matched servomotor/drive combination.  ORMEC's ServoWire drives provide software controlled all-digital performance for consistent operation that totally eliminates analog potentiometer adjustments. High bandwidth current mode operation and a quality high resolution encoder provide the response & accuracy for demanding applications.  Peak torques up to three times the rated torque are available for a few seconds, allowing the motor/drive to handle high inertial loads & heavy duty cycle requirements.
Each motor/drive pair is individually matched to provide high performance and RMS current limiting.

Absolute Encoder Option
Cost-effective absolute encoder support provides axis position over a range of 100,000 revolutions.  In continuous unidirectional operation, the position count continually "wraps" through the full range while maintaining absolute position within the cycle.  Position is maintained through power cycles by a lithium battery (optional) on the ServoWire digital drive and a supercapacitor in the servomotor.

The PDF file below contains the complete set of torque-speed curves, motor specifications and outline drawings for the all the D-series motors.

Click here to view/print/download an Adobe Acrobat PDF of this document (1017k).