OKUMA E4809-045-145-C主电路板
上图显示了15分钟热90%响应时间的热响应特性。设置点确定了达到稳态值90%的时间，就像模拟仪器的响应时间一样（响应时间两倍的稳态值表示99%的值）。块间隔此选项计算编程需求时间间隔内的量（RMS电流、实际功率、无功功率或视在功率）的线性平均值。每个新的需求值在每个时间间隔结束时可用。滚动需求此选项计算编程需求时间间隔内的量（RMS电流、实际功率、无功功率或视在功率）的线性平均值（与块间隔相同）。该值每分钟更新一次，并指示更新时间之前的时间间隔内的需求。
The above graph shows the thermal response characteristic for a thermal 90% response time of 15 minutes. A setpoint establishes the time to reach 90% of a steady-state value, just as the response time of an analog instrument (a steady-state value applied for twice the response time will indicate 99% of the value). Block Interval This selection calculates a linear average of the quantity (RMS current, real power, reactive power, or apparent power) over the programmed demand TIME INTERVAL. Each new value of demand becomes available at the end of each time interval. Rolling Demand This selection calculates a linear average of the quantity (RMS current, real power, reactive power, or apparent power) over the programmed demand TIME INTERVAL (in the same way as Block Interval). The value is updated every minute and indicates the demand over the time interval just preceding the time of update.
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