1747-ASB
1747-ASB
1747-ASB
1747-ASB
1747-ASB
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〖厦门光沃自动化设备有限公司 竭诚为您服务〗
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【品牌】Allen-Bradley罗克韦尔、ABB、本特利Bently 3500系统卡件、GE、艾默生西屋等模块卡件
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整个系统的起始点在于切刀,切刀的频率决定拉纸伺服进纸的速度,决定送纸的频率,决定印刷的速度。整个系统的控制架构框图如下图1.
图1 系统控制架构图
切刀电机通过变频器控制,使用模拟量拓展模块给定变频器运行频率,切刀频率是整个系统速度的指挥棒,决定着印刷速度。
拉纸伺服通过编码器来跟随切刀,切刀一个周期拉纸伺服向前进纸等于设定的纸张长度。
送纸伺服电机使用智能伺服来控制,智能伺服需要处理两部分的内容,一方面是每次固定长度的纸张,一方面是当纸张上有色标出现时,处理异常纸张。色标信号通过电眼检测。正常情况时(没有色标),当切刀在某一位置时(通过安装在切刀电机轴上的霍尔开关检测),智能伺服启动内部提前规划好的曲线,向前送一设定长度的纸张,然后等待下一个送纸启动信号的来临,在向前送纸的过程中,智能伺服会检测色标信号,如果碰见色标信号,会自动规划好异常纸张的曲线并且等待色标纸张处理信号来时处理。
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