2016/6/23 8:54:05 来源: 厦门泰尼电气有限公司
IC697CMM742-LL
IC697CMM742-LL
IC697CMM742-LL
15、 有加速时间与减速时间可以分别给定的机种,和加减速时间共同给定的机种,这有什么意义?
加减速可以分别给定的机种,对于短时间加速、缓慢减速场合,或者对于小型机床需要严格给定生产节拍时间的场合是适宜的,但对于风机传动等场合,加减速时间都较长,加速时间和减速时间可以共同给定。
16、 什么是再生制动?
电动机在运转中如果降低指令频率,由于负载惯性大电动机变为发电机状态运行,作为制动器而工作,这就叫做再生(电气)制动。
17 、是否能得到更大的制动力?
从电机再生出来的能量贮积在变频器的滤波电容器中,由于电容器的容量和耐压的关系,通用变频器的再生制动力约为额定转矩的10%~20%。如采用选用件制动单元,可以达到50%~100%。
厦门泰尼电气有限公司
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