The British witten automation products in the application of the automatic edge banding machine

The British witten automation products in the application of automatic edge banding machine the British witten welcome to e exhibition hall 2 woodworking machinery/furniture exhibition hall woodworking engraving machine, woodworking milling machine, carpenter ornamental engraving and milling machine, rotary cutting machine, woodworking drill/drilling holes,. 。 。 Were reviewed, according to the technical requirements of woodworking edge banding machine, man-machine interface, PLC controller control system in the British witten, inverter fully integrated solution, concrete scheme diagram (see figure 1. PLC controller control system with human-machine interface between using the standard modbus protocol, between control system and frequency converter mainly adopts multistage speed control mode, at the same time through the British witten PLC unique N: N communications, read the necessary inverter status information. In addition, according to the British witten engineer experience, puts forward some Suggestions on the existing electrical installation, hoping to provide some help on the stability of equipment. Second, the system description 1. Control system with the British witten VF series touch screen man-machine interface, 10 inches color high cost performance products, have a good human-computer interaction function. PLC control system with the British witten controller IVC1 series, the product has a very high cost performance, and VF and the composition of the British witten inverter perfect small automation products solutions. This existing sealing side machine by the stroke switch signal delay action for each station, installation and debugging is not convenient, not only the scene of the final customer environment such as voltage fluctuations, the adaptation of the machinery and so on all the possible causes of the conveyor belt speed fluctuations, such action also how much for each station will be affected, the theory of every action there is a certain error range, so the general sealing side machine also points at the end of high school three kinds of speed, so the touch screen is to delay parameters corresponding to three different speed. Now using the British witten solution: add a encoder, lose their original seven travel switch. Using encoder absolute position control. Such control not only more accurate also save installation time, reduce mechanical failure rate. Graph one: the sealing side machine system schematic diagram 3, Suggestions about electrical installation according to the British witten engineer experience, in view of the existing electrical installation condition, specially put forward the Suggestions for improvement of the following three aspects, hoping to help for the stability of the equipment. 1. No good connection between multiple mounting plate usually when two devices have signal connection between each other, while their grounding in different locations, if the potential difference between two ground, can produce ground loop interference. Is the common mode interference. As shown in figure 2: in order to avoid this kind of interference, can parallel ground within the cabinet. Inside the cabinet by bus one-point earthing, each device through independent, as short as possible, with thick enough ground wire to the cabinet in the ground. Recommended short and thick cable will be installed respectively plate connected to ground. 2. Wiring path can be optimized to avoid signal and motor power lines running parallel to the analog signal and power lines in a trough line, can produce peak on the analog signal interference signals. Usually in order to avoid this kind of situation, should according to the following principles: ( 1) Different voltage level cable ( 110/220 v and 24 v, 400 v) , should be separated; ( 2) Analog signal lines should be independent walk line; ( 3) Signal lines, telecommunication lines and electronic control components such as line, the distance between the power line should be > 20 cm. If not, should be separated with metal plate in the middle. 3. Contactor coil can consider to increase the resistance capacity elements anti surge electronic controlled switch in action will produce a lot of rush disturbance signal, its peak could reach 4000 v, as shown in figure 3, figure 3: rush disturbance signal sample these absorption peak voltage can use all sorts of surge absorption equipment, such as RC circuit or zener diodes, and so on, in order to avoid the rush. As shown in figure 4. Figure 4: element resistance capacity anti surge example above at 3 o 'clock is the British witten engineer according to the advice given by the field experience, expect to improve the stability of the existing electrical installation. The wiring diagram:
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