免费会员 经销商
参考价:
具体成交价以合同协议为准
免费会员 经销商
Bently Nevada 卡件 3500/33 16 Channel Relay Module PWA 149986-01 D
Bently Nevada 卡件 3500/33 16 Channel Relay Module PWA 149986-01 D
Bently Nevada 卡件 3500/33 16 Channel Relay Module PWA 149986-01 D
使用电机时要注意的问题?
答:上电运行前要作如下检查:
1) 电源电压是否合适(过压很可能造成驱动模块的损坏);对于直流输入的 +/- 极性一定不能接错,驱动控制器上的电机型号或电流设定值是否合适(开始时不要太大);
2) 控制信号线接牢靠,工业现场要考虑屏蔽问题(如采用双绞线);
3) 不要开始时就把需要接的线全接上,只连成zui基本的系统,运行良好后,再逐步连接。
4) 一定要搞清楚接地方法,还是采用浮空不接。
5) 开始运行的半小时内要密切观察电机的状态,如运动是否正常,声音和温升情况,发现问题立即停机调整。
步进电机启动运行时,有时动一下就不动了或原地来回动,运行时有时还会失步,是什么问题?
一般要考虑以下方面作检查:
1) 电机力矩是否足够大,能否带动负载,因此我们一般*用户选型时要选用力矩比实际需要大 50%~ 的电机,因为步进电机不能过负载运行,哪怕是瞬间,都会造成失步,严重时停转或不规则原地反复动。
2) 上位控制器来的输入走步脉冲的电流是否够大(一般要 >10mA ),以使光耦稳定导通,输入的频率是否过高,导致接收不到,如果上位控制器的输出电路是CMOS 电路,则也要选用 CMOS 输入型的驱动器。
3) 启动频率是否太高,在启动程序上是否设置了加速过程,从电机规定的启动频率内开始加速到设定频率,哪怕加速时间很短,否则可能就不稳定,甚至处于惰态。
4) 电机未固定好时,有时会出现此状况,则属于正常。因为,实际上此时造成了电机的强烈共振而导致进入失步状态。电机必须固定好。
5) 对于 5 相电机来说,相位接错,电机也不能工作。
我想通过通讯方式直接控制伺服电机,可以吗?
可以的,也比较方便,只是速度问题,用于对响应速度要求不太高的应用。如果要求快速的响应控制参数,用伺服运动控制卡,一般它上面有DSP 和高速度的逻辑处理电路,以实现高速高精度的运动控制。如 S 加速、多轴插补等。
用开关电源给步进和直流电机系统供电好不好?
一般不要,特别是大力矩电机,除非选用比需要的功率大一倍以上的开关电源。因为,电机工作时是大电感型负载,会对电源端形成瞬间的高压。而开关电源的过载性能不好,会保护关断,且其精密的稳压性能又不需要,有时可能造成开关电源和驱动器的损坏。可以用常规的环形或R 型变压器变压的直流电源。
想用±10V或4~20mA的直流电压来控制步进电机,可以吗?
可以,但需要另外的转换模块。
3300 XL P/N 330130-085-00-00 Bently Nevada >>
3300 XL P/N 330130-085-00-00 Bently Nevada >>
3300 XL PROXIMITOR Bently Nevada >>
3300 XL PROXIMITOR Bently Nevada >>
3300/12-02-20 Bently Nevada >>
3300/12-02-20 Bently Nevada >>
3300/12-02-20-00 Bently Nevada >>
3300/12-02-20-00 Bently Nevada >>
3300/16-02-01-02-01-00-00 Bently Nevada >>
3300/16-02-01-02-01-00-00 Bently Nevada >>
3300XL P/N 330101-00-16-02-05 Bently Nevada >>
3300XL, 144181-50 Bently Nevada >>
3300XL, 144181-50 Bently Nevada >>
330100-50-05 Bently Nevada >>
330100-50-05 Bently Nevada >>
330101-00-08-05-02-00 Bently Nevada >>
330101-00-08-05-02-00 Bently Nevada >>
330101-00-08-05-02-05 Bently Nevada >>
330101-00-08-05-02-05 Bently Nevada >>
330101-00-12-05-02-05 Bently Nevada >>
330101-00-12-05-02-05 Bently Nevada >>
330101-00-12-10-02-05 Bently Nevada >>
330101-00-12-10-02-05 Bently Nevada >>
330101-00-18-10-02-05 (102044-00-18-10-02) Bently Nevada >>
330101-00-20-05-01-05 Bently Nevada >>
330101-00-20-05-01-05 Bently Nevada >>
330101-00-28-10-02-01 Bently Nevada >>
330101-00-28-10-02-01 Bently Nevada >>
330101-00-28-10-02-05 Bently Nevada >>
330101-00-28-10-02-05 Bently Nevada >>
330101-00-28-10-02-05 (102044-00-28-10-02) Bently Nevada >>
330103-00-03-05-02-01 Bently Nevada >>
330103-00-03-05-02-01 Bently Nevada >>
330103-00-03-05-02-02 Bently Nevada >>
330103-00-03-05-02-02 Bently Nevada >>
330103-00-05-10-02-05 Bently Nevada >>
330103-00-05-10-02-05 Bently Nevada >>
330104-00-05-05-02-05 Bently Nevada >>
330104-00-05-05-02-05 Bently Nevada >>
330104-10-20-05-01-05 S/N 04L00NEG 3300 XL 8MM Bently Nevada >>
330104-10-20-05-01-05 S/N 04L00NEG 3300 XL 8MM Bently Nevada >>
330105,3/8-24 Bently Nevada >>
330105,3/8-24 Bently Nevada >>
330105-02-012-10-02-05 3300XL 3300 LK 8 Bently Nevada >>
330105-02-012-10-02-05 3300XL 3300 LK 8 Bently Nevada >>
330105-02-12-05-02-00 Bently Nevada >>
330105-02-12-05-02-00 Bently Nevada >>
330105-02-12-05-02-02 Bently Nevada >>
330105-02-12-05-02-02 Bently Nevada >>
330105-02-12-05-02-02(05) Bently Nevada >>
330105-02-12-05-02-02(05) Bently Nevada >>
330105-02-12-05-02-05 Bently Nevada >>
330105-02-12-05-02-05 Bently Nevada >>
330105-02-12-10-02-02 RJO04686 Bently Nevada >>
330105-02-12-10-02-02 RJO04686 Bently Nevada >>
330105-02-12-10-02-02 RJO04689 Bently Nevada >>
330105-02-12-10-02-02 RJO04689 Bently Nevada >>
330105-02-12-10-02-05 Bently Nevada >>
330105-02-12-10-02-05 Bently Nevada >>
330105-02-12-12-02-05 M10X1 8MM Bently Nevada >>
330105-02-12-12-02-05 M10X1 8MM Bently Nevada >>
330106-05-30-10-02-05 3300 XL 8MM S/N 03100UR3 Bently Nevada >>
330106-05-30-10-02-05 3300 XL 8MM S/N 03100UR3 Bently Nevada >>
330130-040-00-00 Bently Nevada >>
330130-040-00-00 Bently Nevada >>
330130-040-00-05 Bently Nevada >>
330130-040-00-05 Bently Nevada >>
330130-040-00-05 (102045-040-00) Bently Nevada