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    • 6. 发明授权
    • Method of diagnosing a servomotor control circuit
    • 诊断伺服电动机控制电路的方法
    • US4496889A
    • 1985-01-29
    • US442425
    • 1982-11-17
    • Hiroomi FukuyamaShinichi Isobe
    • Hiroomi FukuyamaShinichi Isobe
    • G05B23/02G05B19/23G05B19/406G05B19/4062
    • G05B19/231G05B19/4062G05B2219/34448G05B2219/34466G05B2219/36551G05B2219/37541
    • A method of diagnosing a servomotor position control circuit which includes a pulse distributor for carrying out arithmetic operations for pulse distribution based on command data given by a control unit, a position detector for generating a positional pulse each time the servomotor rotates through a predetermined angular interval, an error storage unit for computing and storing the difference between the number of positional pulses generated by the position detector and the number of distributed pulses generated by the pulse distributor, and a D/A converter for converting the difference into an analog output, whereby the servomotor is controlled by the analog output from the D/A converter. The method comprises the steps of supplying a numerical value from the control unit to the pulse distributor to enable the latter to effect the arithmetic operations while the servomotor is being de-energized, reading a stored content of the error storage unit, supplied with the distributed pulses from the pulse distributor, into the control unit, and checking the servomotor position control circuit for normal and malfunctioning conditions by comparing the stored content as read by the control unit with the numerical value.
    • 一种诊断伺服电动机位置控制电路的方法,包括:脉冲分配器,用于根据由控制单元给出的命令数据执行用于脉冲分配的算术运算;位置检测器,用于每当伺服电机旋转预定角度间​​隔时产生位置脉冲 ,用于计算和存储由位置检测器产生的位置脉冲数与由脉冲分配器产生的分布脉冲数之间的差异的误差存储单元,以及用于将差值转换为模拟输出的D / A转换器,由此 伺服电机由D / A转换器的模拟输出控制。 该方法包括以下步骤:将来自控制单元的数值提供给脉冲分配器,以使得后者能够在伺服电动机断电的同时进行算术运算,读取存储分配的错误存储单元的存储内容 将来自脉冲分配器的脉冲输入到控制单元中,并且通过将由控制单元读取的存储内容与数值进行比较来检查伺服电动机位置控制电路的正常和故障状况。