EtherCAT I/O system: higher performance range with compact servomotor terminals
4/23/2014
Servo system leverages I/O technology to dramatically reduce drive space requirements
With the new EL7211 servo terminal, the EtherCAT I/O system now also offers a complete servo drive with an output current of up to 4.5 ARMS ̶ integrated into a space-saving 24-mm terminal housing. This advanced EtherCAT Terminal is available with integrated resolver interface or with the One Cable Technology (OCT) solution. Especially when used in combination with the new AM811x servomotors, users take advantage of an extremely compact, efficient and inexpensive servo system.
The EL7211 servomotor EtherCAT Terminal with integrated resolver interface offers impressive drive power in a remarkably compact design for AM31xx and AM81xx series motors from Beckhoff. Designed with a 24-mm terminal housing, it delivers higher performance, with up to 4.5 ARMS at 50 V DC, than the already proven and popular 12-mm wide EL7201 servomotor terminal with 2.8 ARMS.
OCT simplifies installation and reduces costs
As the EL7211-0010 servomotor terminal supports absolute encoders, it is suitable for the AM81xx servomotor series with One Cable Technology (OCT). OCT combines power and feedback signals into one standard motor cable and significantly reduces material and commissioning costs. The integrated electronic identification plate of the servomotors can be read in automatically by the EL7211-0010 EtherCAT Terminal and simplifies motor commissioning.
The fast control technology of the EL7211 servomotor terminal, which is achieved through field-oriented current and PI speed control, is ideal for fast and highly dynamic positioning tasks. The monitoring of numerous parameters, e.g. overvoltage and undervoltage, overcurrent, terminal temperature or motor load via the calculation of a 12T model, offers maximum operational reliability. EtherCAT, as a high-performance communication system, and CAN over EtherCAT (CoE) as the application layer, enable optimum interfacing with PC-based control technology.
New compact servomotors save additional space
The new AM811x servomotors, which can be controlled by the EL72xx-0010, offer a scalable output of 50 to 250 W and are designed with a 40 mm flange size for minimal mounting spaces. They are equipped with single- or multi-turn absolute encoders with 15-bit resolution plus the OCT connection solution. Rotatable connectors with a quick connection and release feature facilitate mounting while ensuring industrial design. Three overall lengths and an optional backlash-free permanent magnet holding brake cover a wide range of applications.
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
ENTER NUMBET 0016www.jexdic.com.cn www.jdzrctc.com.cn iswyfj.com.cn www.jhtpkj.org.cn mv48.com.cn qhnl.com.cn qianfusc.com.cn nbhongyuan.com.cn q7t8d8.com.cn wjgtgh.com.cn
