详细介绍: 二、低频特性不同
R88D-UP04LA AC100V 50W步进电机在低速时易出现低频振动现象。振动频率与负载情况和驱动器性能有关,一般认为振动频率为电机空载起跳频率的一半。这种由步进电机的工作原理所决定的低频振动现象对于机器的正常运转非常不利。当步进电机工作在低速时,一般应采用阻尼技术来克服低频振动现象,比如在电机上加阻尼器,或驱动器上采用细分技术等。交流伺服电机运转非常平稳,即使在低速时也不会出现振动现象。交流伺服系统具有共振抑制功能,可涵盖机械的刚性不足,并且系统内部具有频率解析机能(FFT),可检测出机械的共振点,便于系统调整。
三、矩频特性不同
R88D-UP04LA AC100V 50W步进电机的输出力矩随转速升高而下降,且在较高转速时会急剧下降,所以其最高工作转速一般在300~600RPM。交流伺服电机为恒力矩输出,即在其额定转速(一般为2000RPM或3000RPM)以内,都能输出额定转矩,在额定转速以上为恒功率输出。
四、过载能力不同
R88D-UP04LA AC100V 50W步进电机一般不具有过载能力。交流伺服电机具有较强的过载能力。以松下交流伺服系统为例,它具有速度过载和转矩过载能力。其最大转矩为额定转矩的三倍,可用于克服惯性负载在启动瞬间的惯性力矩。步进电机因为没有这种过载能力,在选型时为了克服这种惯性力矩,往往需要选取较大转矩的电机,而机器在正常工作期间又不需要那么大的转矩,便出现了力矩浪费的现象。
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R88D-UP04LA AC100V 50W
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R88D-WT10H
R88D-WT150H
R88D-WT15H
R88D-WT20H
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R88D-WT75H
R88D-WTA3H
R88D-WTA3HL
R88D-WTA5H
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R88M-H20030-G25BJS1
R88M-H30030 AC300W
R88M-H30030-B AC300W
R88M-H50030-B AC500W
R88M-H75030 AC750W
R88M-H75030-B AC750W
R88M-U03030HA
R88M-U03030HA-B
R88M-U03030HA-BS1
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