1761-L32AWA
发布时间:2019-05-06 16:14:43点击率:
1761-L32AWA
1761-L32AWA
1761-L32AWA
1761-L32AWA
《联系人;欧先生》
《座机:0592-5709825》
《传真:0592-5917519》
《24小时热线:18030229053微信同步》
《QQ :2479261344》
《QQ邮箱:2479261344@qq》
由上述工艺结构、流程和技术参数了解到,高速飞剪机要求频繁快速加减速启动,因此驱动电机的加减速时间很短,通常从静止加速到 500rpm的时间在 10 毫秒内,减速亦然,并要求速度反向灵敏;而工作台又有相当的质量,负载惯性大,交流变频调速驱动电机因其启动力矩和低速力矩不够,高速加减速时间长,低频力矩输出低,达不到设计要求。时光异步伺服控制器在额定转速频率范围内具有恒转矩(200%额定)输出的特性,且加减速度范围在 0.05~3000Hz/S,换算后可达到静止加速到 500rpm的时间为 8 毫秒内,采用该伺服驱动后上述问题得到解决。
2、高速运行同步精度问题
系统运行中,当测长编码器测出长度并与设定长度比较运算后给出同步信号时,要求驱动电机驱动工作台速度同步于材料送料速度,并且在材料切断过程中也要保持同步,而送料速度由上游成型机决定,飞剪机处于被动随动,因此在反应速度和同步精度上对驱动电机要求定位准确,快速。而一般变频调速电机必须配备高性能同步卡才能做到,该同步卡价格昂贵,性价比差;而时光伺服控制器具有双 PG输入功能,并可编程在控制器内部实现同步功能,且同步、跟随精度为±1个编码器脉冲数,选用 2048P编码器,根据机械尺寸换算后可达到±0.03mm 的精度,采用该伺服驱动后达到了要求。
3、工作台运行中震动问题
工作台在频繁启动和高速加减速过程中容易产生震动,从而影响到机器上采集信号的稳定性,特别是测长和测速编码器的脉冲稳定性,一般变频调速采取设定加减速时间和 S曲线方法解决;而时光伺服控制器除具有上述曲线功能外,还具有定位时减速过程的惯性修正点设定、定位结束前爬行的剩余脉冲数设定的功能,通过设定可以明显解决震动问题。
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