德国西门子变频器紧凑型
信号线与动力线必须分别放置在不同的金属管道或者金属软管内部：连接PLC和变频器的信号线如果不放置在金属管道内，极易受到变频器和外部设备的干扰；同时由于变频器无内置的电抗器，所以变频器的输入和输出级动力线对外部会产生极强的干扰，因此放置信号线的金属管或金属软管一直要延伸到变频器的控制端子处，以保证信号线与动力线的分开。  
西门子变频器的设计水平同各变频器相比，功能强大，无可挑剔！如果再能从设计上就考虑到将来维修的方便性并在制造选材上提高一下零件的质量是为理想的了。
德国西门子变频器紧凑型
德国西门子Siemens变频器 通用变频器MMMMVMDV系列，订货号如下:6SE9210-7BA406SE9211-5BA406SE9212-1BA406SE9212-8BA406SE9213-6BA406SE9215-2BB406SE9216-8BB406SE9221-0BC406SE9221-3BC406SE9210-7CA406SE9211-5CA406SE9212-1CA406SE9212-8CA406SE9213-6CA406SE9215-2CB406SE9216-8CB406SE9221-0CC406SE9221-3CC406SE9221-8CC136SE9211-1DA406SE9211-4DA406SE9212-0DA406SE9212-7DA406SE9214-0DA406SE9215-8DB406SE9217-3DB406SE9221-0DC406SE9221-3DC406SE9221-5DC406SE3210-7BA406SE3211-5BA406SE3212-1BA406SE3212-8BA406SE3213-6BA406SE3215-2BB406SE3216-8BB406SE3221-0BC406SE3221-3BC406SE3210-7CA406SE3211-5CA406SE3212-1CA406SE3212-8CA406SE3213-6CA406SE3215-2CB406SE3216-8CB406SE3221-0CC406SE3221-3CC406SE3221-8CC406SE3211-1DA406SE3211-4DA406SE3211-0DA406SE3212-7DA406SE3214-0DA406SE3215-8DB406SE3217-3DB406SE3221-0DC406SE3221-3DC406SE3221-5DC406SE3222-3CG406SE3223-1CG406SE3224-2CH406SE3225-4CH406SE3226-8CJ406SE3227-5CJ406SE3231-0CK406SE3231-3CK406SE3231-5CK406SE3221-7DG406SE3222-4DG406SE3223-0DH406SE3223-5DH406SE3224-2DJ406SE3225-5DJ406SE3226-8DJ406SE3228-4DK406SE3231-0DK406SE3231-4DK406SE3213-9FG406SE3216-1FG406SE3219-0FG406SE3221-1FG406SE3221-7FG406SE3222-2FH406SE3222-7FH406SE3223-2FJ406SE3224-1FJ406SE3225-2FJ406SE3222-3CG506SE3223-1CG506SE3224-2CH506SE3225-4CH506SE3226-8CJ506SE3227-5CJ506SE3231-0CK506SE3231-3CK506SE3231-5CK506SE3221-7DG506SE3222-4DG506SE3223-0DH506SE3223-5DH506SE3224-2DJ506SE3225-5DJ506SE3226-8DJ506SE3228-4DK506SE3231-0DK506SE3231-4DK506SE3222-3CS456SE3223-1CS456SE3224-2CS456SE3225-4CS456SE3226-8CS456SE3227-5CS456SE3231-0CS456SE3231-3CS456SE3231-5CS456SE3221-7DS456SE3222-4DS456SE3223-0DS456SE3223-5DS456SE3224-2DS456SE3225-5DS456SE3226-8DS456SE3228-4DS456SE3231-0DS456SE3231-4DS456SE3213-9FS456SE3216-1FS456SE3219-0FS456SE3221-1FS456SE3221-7FS456SE3222-2FS456SE3222-7FS456SE3223-2FS456SE3224-1FS456SE3225-2FS456SE3290-0DG87-0FA56SE3290-0DH87-0FA56SE3290-0DJ87-0FA66SE3290-0DJ87-0FA66SE3290-0DJ87-0FA66SE3290-0DJ87-0FA66SE3290-0DK87-0FA76SE3290-0DK87-0FA76SE3290-0DK87-0FA76SE3290-0DG87-0FA56SE3290-0DG87-0FA56SE3290-0DH87-0FA56SE3290-0DH87-0FA56SE3290-0DJ87-0FA66SE3290-0DJ87-0FA66SE3290-0DJ87-0FA66SE3290-0DK87-0FA76SE3290-0DK87-0FA76SE3290-0DK87-0FA76SE2100-1FC206SE2100-1FC206SE2100-1FC206SE2100-1FC216SE2100-1FC216SE2100-1FC206SE2100-1FC206SE2100-1FC206SE2100-1FC206SE2100-1FC206SE2100-1FC206SE2100-1FC20;  
德国西门子变频器紧凑型
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德国西门子变频器紧凑型