YOKOGAWA 直线电机和旋转电机型录.pdf

DDM Product Catalog CA A501-E CA A501-E ?Copyright Aug. 2005 2nd Edition Nov. 2005 Yo kogawa Electric Corporation 2-9-32, Nakacho, Musashino-shi, Tokyo, 180 Japan Tel.: 81-422-52-1283 Fax.: 81-422-52-1284 2 All Rights Reserved. Copyright ? 2005, Yokogawa Electric Cor po ra tion CA A501-E -00 DYNASERV uses a special high-rigidity bearing to support rotations, so it produces a very small amount of dust. The cleanliness of DYNASERV is proven by a Class-10 rating, which means the maximum number of pieces of dust whose particle diameter exceeds μm is 10 per square foot. The gear-less structure ensures the long product life. Intelligent Drivers are drastically improved the basic performance of DYNASERV. The employment of digital positioning and speed control technologies and four-fold resolution are among the factors reducing the position setting time conventional DYNASERV to less than half that of DYNASERV. The standard-equipped feed forward function also contributes to the reduction of the position setting time. The ic circuit of DYNASERV employs the ic bias method, in which a rare-earth permanent with a high ic force is housed in the stator core. As in the ? gure below, this mechanism generates a high rotating torque, which is proportional to the square value of the sum of the two ic ? uxes. As a result, the direct drive (DD) motor offers an unprecedented torque-weight ratio. DM1A-150 Stator Photodiode Slit Lens LED Cross Rollerbearing Rotor Core Stator Core Coil Pe r manent Rotor Stator core Rotor core Exciting coil ?C Exciting ic flux T: rotating torque ?m bias ic flux Pe r manent (rare-earth) 0 ° 90 ° +60 +30 –30 0 –60 180 ° Rotational angle (degree) 270 ° 360 ° Position setting accuracy (arc-sec) Sample (2) Sample (1) 180 160 140 120 100 80 60 40 20 0 10 1 100 1000 Existing drivers DrvMII/GII driver Position bandwidth: 30 Hz Speed bandwidth: 120 Hz Face width of position setting pulses (number of pulse