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智維自控設備技術（徐州）有限公司

變頻器産品

全国统一服务热线: 400-0099-050

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産品展示

高低壓變頻器

高低壓配電櫃

伺服驅動器

紡織專用儀器

伺服驅動器常见故障维修方法

伺服驅動器是用来控制伺服电机的一种控制器，其作用类似于变频器作用于普通交流马达，属于伺服系统的一部分，主要应用于高精度的定位系统。一般是通过位置、速度和力矩三种方式对伺服马达进行控制，实现高精度的传动系统定位，目前是传动技术的高端产品。以下为伺服驅動器维修的七大方法。

1、示波器檢查驅動器的電流監控輸出端時，發現它全爲噪聲，無法讀出

故障原因：電流監控輸出端沒有與交流電源相隔離(變壓器)。

處理方法：可以用直流電壓表檢測觀察。

2、電機在一個方向上比另一個方向跑得快

(1) 故障原因：无刷电机的相位搞错。

處理方法：檢測或查出正確的相位。

(2) 故障原因：在不用于测试时，测试/偏差开关打在测试位置。

處理方法：將測試/偏差開關打在偏差位置。

(3) 故障原因：偏差电位器位置不正确。

處理方法：重新設定。

3、電機失速

(1) 故障原因：速度反馈的极性搞错。

處理方法：可以嘗試以下方法。

a.如果可能，將位置反饋極性開關打到另一位置。(某些驅動器上可以)

b.如使用測速機，將驅動器上的TACH+和TACH-對調接入。

c.如使用編碼器，将驱动器上的ENC A和ENC B对调接入。

d.如在HALL速度模式下，將驅動器上的HALL-1和HALL-3對調，再將Motor-A和Motor-B對調接好。

(2) 故障原因：編碼器速度反馈时，編碼器电源失电。

处理方法：检查连接5V編碼器电源。确保该电源能提供足够的电流。如使用外部电源，确保该电压是对驱动器信号地的。

4、LED燈是綠的,但是電機不動

(1) 故障原因：一个或多个方向的电机禁止动作。

处理方法：检查+INHIBIT 和 –INHIBIT 端口。

(2) 故障原因：命令信号不是对驱动器信号地的。

處理方法：將命令信號地和驅動器信號地相連。

5、上電後，驅動器的LED燈不亮

故障原因：供電電壓太低，小于最小電壓值要求。

處理方法：檢查並提高供電電壓。

6、当电机转动时， LED灯闪烁

(1) 故障原因：HALL相位错误。

處理方法：檢查電機相位設定開關是否正確。

(2) 故障原因：HALL傳感器故障。

处理方法：当电机转动时检测Hall A, Hall B, Hall C的电压。电压值应该在5VDC和0之间。

7、LED燈始終保持紅色

故障原因：存在故障。

处理方法：原因: 过压、欠压、短路、过热、驱动器禁止、HALL无效

For an Oriental city Tokio has remarkably wide streets, and some of them are laid out with all the care of Western engineering. In the course of their morning ride the party came to Sakuradu Avenue, which Fred recognized from a drawing by a native artist, who had taken pains to preserve the architecture of the buildings on each side with complete fidelity. The foundations of the houses were of irregular stones cut in the form of lozenges, but not with mathematical accuracy. The boys had already noticed this form of hewing stone in the walls of the castles, where some very large blocks were piled. They were reported to have been brought from distant parts of the empire, and the cost of their transportation must have been very great. Few of the houses were of more than two stories, and the great majority were of only one. Along Sakuradu Avenue they were of two stories, and had long and low windows with paper screens, so that it was impossible for a person in the street to see what was going on inside. The eaves projected far over the upright sides, and thus formed a shelter that was very acceptable in the heat of summer, while in rainy weather it had many advantages. These yashikis were formerly the property of Daimios, but are now occupied by the Foreign Office and the War Department. Inside the enclosure there are many shade-trees, and they make a cooling contrast to the plain walls of the buildings. The Japanese rarely paint the interior or the exterior of their buildings. Nearly everything is finished in the natural color of the wood, and very pretty the wood is too. It is something like oak in appearance, but a trifle darker, and is[Pg 120] susceptible of a high polish. It admits of a great variety of uses, and is very easily wrought. It is known as keyaki-wood; and, in spite of the immense quantity that is annually used, it is cheap and abundant. "Shut it," said Charlotte, with a sigh like that which had risen when the lead first struck her. "If I could be moved ever so little,--" she said. "That's his look-out, madam. If the sick lady isn't Charlotte Oli'--" The truth is that Doctor Allingham had not been able to summon the courage to make a further examination of the Clockwork man; and he had permitted himself to assume that there would be no immediate developments. So far as was possible he had allowed himself that very necessary relaxation, and he had insisted upon Gregg sharing it with him. The Clockwork man was not quite what either of them had, alternatively, hoped or feared. From Allingham's point of view, in particular, he was not that bogey of the inhuman fear which his original conduct had suggested. True, he was still an unthinkable monstrosity, an awful revelation; but since the discovery of the printed instructions it had been possible to regard him with a little more equanimity. The Clockwork man was a figment of the future, but he was not the whole future. Skip this postscript if you don't want your sensibilities all Larry took a swift, sharp look around the enclosure. His railroad friend again came up with some hot coffee and broiled meat, and explained that after the train had reached a station some miles out it got orders to run back and clear the track for some trains of troops from the Army of the Potomac which were being rushed through. The Deacon's heart almost sank in despair, but he took the coffee and meat, and helped the boys to it. As they were all eating they heard a voice outside which struck on the chords of their memories: "Whose head'll you knock off?" said a burly man, thrusting himself in front of the lawyer, with his fist doubled. "Why," said Si, "I supposed that they was too tired to do anything but lay down and go to sleep. What'd they do?" "It isn't me. I only asked for a little time to think it over, and then you go and cool off." These tricks were never unkind, for David and William were the most benevolent little boys. They saw life through a golden mist, it smelt of milk and apples, it was full of soft lowings and bleatings and cheepings, of gentle noses to stroke and little downy things to hold. For the first time since it became Reuben's, Odiam made children happy. The farm which had been a galley and a prison to those before them, was an enchanted land of adventure to these two. Old Beatup, who remembered earlier things, would sometimes smile when he saw them trotting hand in hand about the yard, playing long hours in the orchard, and now and then[Pg 385] pleading as a special favour to be allowed to feed the chickens, or help fetch the cows home. He seemed to see the farm peopled by little ghosts who had never dared trot about aimlessly, or had time to play, and had fed the fowls and fetched the cows not as a treat and an adventure, but as a dreary part of the day's grind ... he reflected that "the m?aster had learned summat by the others, surelye." "My lord," said the intrepid yeoman, "I had a right to defend my dwelling against unlawful assault." Here Calverley's quick ear caught the sound of the tramping of a horse—his heart beat quick—it might be a traveller journeying to Gloucester, but it was more probable that it was the messenger. He threw the bridle of his horse over the branch of a tree, sprang to the end of the path, and, concealing himself behind the under-wood, discovered in a moment, by the dark medley hue of the rider's dress, that it was the man he expected. He hurried back, and, mounting his steed, waited till the echo of the horse's hoofs could no longer be distinguished; and then, giving the impulse to his own spirited animal, he was the next moment bounding at full speed after the messenger, followed at a distance by his accomplice. No reply was given, but the door was instantly unclosed by Holgrave. Black Jack stood in the shade, just beyond the light that streamed from within, but so close that Holgrave, without crossing the threshold, merely leant his head forward, and heard him say, "Stephen Holgrave, do you remember the cross-roads and Hailes church-yard?" HoME 欧美videosgratis浓毛ENTER NUMBET 002sdhtc.com.cn
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