Beckhoff Drive Technology: AM8000 motor range further extended
4/17/2014
Dynamic servomotors for the smallest installation spaces
Beckhoff is adding the new flange size F1 with a 40 mm edge length to the AM8000 Servomotor series. Three overall lengths cover a torque range from 0.22 to 0.55 Nm, enabling highly dynamic drive solutions to be implemented with minimised space requirements.
The new AM801x and AM811x servomotors offer a low rotor moment of inertia as well as quadruple overload capacity and therefore meet the highest requirements for motion dynamics even in the smallest of installation spaces. This makes them ideal, for example, for applications with fast cycle changes. The two series differ among other things in their rated voltage. An extremely compact and economical servo system can be implemented by combining the AM811x motors with the EL7201-0010 and EL7211-0010 servomotor terminals, with 2.8 ARMS and up to 4.5 ARMS respectively, at 50 V DC. The AX5000 EtherCAT servo drive (1/2 canal, up to 3 A) can be used to control the AM801x servomotors, which are designed for 230 V AC.
Optionally, the motors are available with backlash-free permanent magnet holding brake or feather key groove. To offer maximum motor performance in a compact size, the motors are equipped with an absolute encoder and One Cable Technology (OCT). With OCT motor supply and position feedback signal are transmitted via just one cable, significantly reducing the costs for components and installation. On request the motors are available with multi-turn absolute encoders.
Three integrated user benefits
Thanks to the multi-turn absolute encoder integrated in the AM801x and AM811x motors, the absolute position of the drive is known when switching the axis on, making a homing function unnecessary. Thus the system can be started without reference drives to the end positions. In addition, not only can the position of the axis be determined, but also the current displacement speed. The drive position is stored in an EEPROM without battery buffering. With these features the new motor is ideally suited to feed and traversing axes, since limit switches and additional encoders are not required.
The new compact motors can also be rapidly and reliably identified in plant networks thanks to the electronic type plate containing mechanically and electronically relevant data such as serial number, type and manufacturer's data. The integrated error memory enables on-line diagnostics into the motor.
Moreover, safe drive functions can be implemented very simply even in the smallest of installation spaces using the AM801x servomotors in conjunction with the AX5805 TwinSAFE Option Card. This not only enables traversing and feed axes to be switched off safely, but also programming including safe motion functions according to EN ISO 13849-1 to PLe. The motors can be switched torque-free and monitored in terms of speed, position and direction of rotation. Thus, traversing and feed axes can now also be integrated into the TwinCAT system, which considerably increases the availability of the entire machine.
The Federal's pistol slid into its holster and his sabre flashed out. He threw its curved point up in a splendid salute. Ferry saluted with his straight blade. Then both swords rang back into their scabbards, and Jewett whirled away toward his column. For a moment we lingered, then faced to the left, trotted, galloped. Over the fence and into the road went he--went I. Down it, as we crossed, the blue column was just moving again. Then the woods on the south swallowed us up. "All right, sir." that before. Meanwhile the parallelism between Thought and Extension was not exhausted by the identification just analysed. Extension was not only a series of movements; it still remained an expression for co-existence and adjacency.412 Spinoza, therefore, felt himself obliged to supply Thought with a correspondingly continuous quality. It is here that his chief originality lies, here that he has been most closely followed by the philosophy of our own time. Mind, he declares, is an attribute everywhere accompanying matter, co-extensive and co-infinite with space. Our own animation is the sum or the resultant of an animation clinging to every particle that enters into the composition of our bodies. When our thoughts are affected by an external impulse, to suppose that this impulse proceeds from anything material is a delusion; it is produced by the mind belonging to the body which acts on our body; although in what sense this process is to be understood remains a mystery. Spinoza has clearly explained the doctrine of animal automatism, and shown it to be perfectly conceivable;569 but he has entirely omitted to explain how the parallel influence of one thought (or feeling) on another is to be understood; for although this too is spoken of as a causal relation, it seems to be quite different from the logical concatenation described as the infinite intellect of God; and to suppose that idea follows from idea like movement from movement would amount to a complete materialisation of mind; while our philosopher would certainly have repudiated Mr. Shadworth Hodgson’s theory, that states of consciousness are only connected through their extended substratum, as the segments of a mosaic picture are held together by the underlying surface of masonry. Nor can we admit that Spinoza entertained the theory, now so popular, according to which extension and consciousness are merely different aspects of a single reality. For this would imply that the substance which they manifest had an existence of its own apart from its attributes; whereas Spinoza makes it consist of the attributes, that is to say, identifies it with their totality. We are forced, then, to conclude that the proposition declaring thought and extension to be the same thing570 has no413 other meaning than that they are connected by the double analogy which we have endeavoured to explain. “Oh, he’s welcome to it,” Sandy cried. “I’ve turned over a new leaf!” “But—are they?” He pulled a wire out a trifle from the sheath. The sergeant spent more time upon the oaths with which he embellished the counter-question as to how he should know anything about it, than would have been consumed in a civil explanation. "Doctor, he can't die. He mustn't die," said Shorty in agony. "The regiment can't spare him. He's the best soldier in it, and he's my pardner." AND ENTERS UPON HIS PARENTAL RELATIONS TO LITTLE PETE SKIDMORE. "Holy smoke, look there," gasped Monty Scruggs, as a company of rebel cavalry came tearing over the hill in front, to the assistance of their comrades. "That's about it," answered Shorty disdainfully. "That's the way with all cavalry, dad-burn 'em. They're like a passel o' fice pups. They're all yelp and bark, and howl and showin' o' teeth. They're jest goin' to tear you to pieces. But when you pick up a stone or a club, or git ready to give 'em a good kick they're gone, the devil knows where. They're only an aggravation. You never kin do nothin' with 'em, and they kin do nothin' with you. I never kin understand why God Almighty wasted his time in makin' cavalry of any kind, Yank or rebel. All our own cavalry's good for is to steal whisky and chickens from honest soldiers of the infantry. The infantry's the only thing. It's like the big dog that comes up without any special remarks, and sets his teeth in the other dog. The thing only ends when one dog or the other is badly whipped and somethin's bin accomplished." "Mmm." Reuben started out of the half-waking state into which he had fallen. It was late in the afternoon, the sunlight had gone, and a wintry twilight crept up the wall. Maude the dairy-woman was looking in at the door. It was about a month subsequent to this, that one morning, as Turner was making the anvil ring with the ponderous strokes of his hammer, two retainers from the castle entered the shed, and delivered an order from De Boteler for his immediate attendance. Wat laid the hammer on the anvil, and, passing the back of his right hand across his forehead, to clear away the large drops that stood there, looked with a kind of smile at the men as he said, HoME泷泽萝拉四部和集下载
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