自营ICS TRIPLEX 9852*4电缆

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系统实现﹕ICS TRIPLEX 9100    自动化机械备件现货
1. 考虑到客户收布电机加减速时间要求在零点几秒内实现停车及﹐
电机功率为1.5KW,选用2.2KW电机,保证有足够的裕量﹐防止剎车过快﹐导致电流急剧上升造成跳过载。
2. 客户要求布长长度范围在500~2000MM内﹐送布伺服电机完成从到定位停止的时间控制在1秒以内﹐所以选用伺服制动电阻。
3. 定位精度求在1MM以内﹐由于客户加了两级减速机构﹐减速比为1﹕30﹐根据系统扭力要求﹐增大伺服的规格﹐选用2000脉波﹐功率为3KW伺服。
4. 变频器的频度变更采用外部电位机调整﹔起停采用PLC输出控制。
5. 人机界面设手动﹐半自动﹐全自动切换方式﹔系统开机﹐停机均采用人机与外部控制相结合的方式﹐以增加系统的可靠性﹔布长设定采用人机输入方式﹐且设定为权限人员方可操作。
 
．关于伺服控制﹕
1. 由于伺服电机易受外部的干扰造成定位不准的状况﹐本系统按照伺服
的布线原则进行排线﹐采用双绞线方式引出PLC的脉冲控制信号﹐可靠的接地线以屏避干扰。
2. 伺服驱动器控制线采用带屏避层的同心电缆﹐伺服电源线与控制线分
开走线﹐PLC的公共端与伺服机器地对接。用监控的方式查验PLC脉冲的收发情况﹐结果非常良好﹐大的误差为1个脉冲。
3. 由于机械减速比为1﹕30的情况下仍不满足要求﹐所以结合伺服增大
电子齿轮比﹐以满足系统要求﹐在本系统中﹐伺服的1个脉冲的电气控制精度放大了8倍﹐即电子齿轮比设定为8﹐仍足以满足电气精度的要求。
 
4. 伺服系统接线如下图所示﹕采用开集电极接线方式。摘要：本文重点叙述了搪塑机点火系统和相关系统的改造
关键词：搪塑机 PLC 回路1 引言
　　搪塑机是一种制皮的专业设备，主要用于汽车扶手、办公座椅和玩具的生产制造。我们现在用的是一台美国进口的搪塑机，此设备功能齐全，性高。到目前为止已经高负荷运转八年多了，近期常常发生突然无规律断火的故障，由于没有备件并采购困难，因此决定改造其点火和回路系统。２ 原搪塑机点火及系统控制原理
点火及控制原理图：
 
 
 
主要控制流程为：
 
 
　　温控仪工作后会根据检测到的温度自动输出一个4—20mA的电流来控制两个伺服执行器，两个执行器是同时动作的，一个控制燃气和空气的流量，一个控制废气排放的量。温度的设定是在人机界面上设定经主PLC传给温控仪的，设定值可分段控制和在线修改。这套点火系统核心就在点火控制板，但控制板的主要电路都被封闭在一个小控制盒中，造成在故障时无法进行检修，因为其为原装进口，备件采购极为困难并且周期长，因此我们决定对其进行改造。3 设备改造方案thickness, len%-plate length, VB as velocity, SPD, SPD and A3 corresponding to the plate velocity correction curves A1, A2, A3 in figure 6. The Selector function block is a sum of the values of all inputs IN with an se end of 1. 8. Time control of plate release, storage of plate data by array, up to 30 pieces of plate data can be recorded in each interrupt (more than 30 pieces, again from 1) . When the photoelectric sensor f detects an addition of 1 to the plate array at the end of the first plate, the distance dist that the plate traveled during the interrupt period is added to the w (1) ; after each interrupt, the w (1) is added to the dist that the interrupt traveled When the photoelectric sensor F detects the end of the second plate and adds 1 to the plate array, the distance that the plate goes during the interrupt period is added to the dist w (1) , W (2) ; after that, After each interrupt, W (1) and W (2) add the dist traveled by the interrupt. When W (N) value > Gt; = Stack Edge Position BT + sheet length l-minus the velocity correction y, the sheet is released. BT1 is 1430 for 1 # battlements and BT2 is 6580 for 2 # battlements . The BT value is actually the distance between the photoelectric sensor F and the corresponding stack 9. The operating characteristics of the Air Valve and the Air Valve Control Module. The vacuum valve is connected with the corresponding vacuum cavity. Under normal circumstances, the vacuum valve does not operate and the vacuum cavity is closed, forming negative pressure and forming suction on the board. When the vacuum valve operates, the air valve is bypassed, the vacuum chamber is connected with the atmosphere, the negative pressure is eliminated, and the plate is released . The action of the vacuum valve consists of three periods, figure 7: One of the first period for bypass, the Valve Coil DC 48V, rated 8.9 a current, the time is about 38ms; the second period for bypass hold, the Valve Coil DC 12V, rated 2.2 a current, the time is about 40ms; The third period for recovery, by the Valve Spring Return, time is about 22ms The valve control module features the valve action requirements, and its time response is shown in figure 8: where Ta is the suction time, TH is the hold time, TA, TH and hold current Ih can be adjusted by the potentiometer on the Valve Control Module 10. anti-interference, photoelectric sensor F can accurately detect the end of the plate, determine whether the plate walking distance calculation is correct, directly affect the release of the plate The color spots, dirt and oil stains on the surface of the board, aluminum powder on the surface of the vacuum belt and the vibration of the end of the board in operation will interfere the detection of the end of the board by the photoelectric sensor and cause the confusion of the board release. In order to remove these disturbances, it is necessary to filter the detected signals The program is implemented through two timers, CNT AND CNT When the F signal is from 0-1, the CNT F1% begins to count. If the CNT F1% is equal to t 1% and the F signal is 1% , the detection end signal LP@will be generated. When the F signal is from 1-0, the C nt F2% begins to count. The program time response is shown in figure 9.
 
 After installation and commissioning in 1995, there was no function to filter the interference signal. After using it for a period of time, the phenomenon of stacking confusion appeared. After careful observation by engineers, the procedure was modified, and this phenomenon was improved. 11. It is concluded that vacuum stacking is an advanced