继电器驱动电流激励继电器所需的电流总量。通常以每通道给出。
Relay Drive Current. The amount of current necessary to energize a relay. Usually specified per channel.
闭锁继电器采用了一个电流脉冲进行激励，因此其热电漂移非常小。
Latching relays use a pulse of current to actuate them, so they have very low thermoelectric drift.
如果采用类似7013型继电器开关卡这样的开关卡，通道2通常是加激励的。
If using a card such as the Model 7013 Relay Switch card, ch. 2 is normally energized.
为了确保磁保持继电器可靠动作，施加到线圈上的激励电压须达到额定值，且脉冲宽度设置须达到动作时间的3倍以上。
Ln order to ensure the reliability of relay coil voltage, must reaeh value, the pulse width must be 3 times more time.
为此，提出了在继电器两端并联一个电阻器或者电容器的改进方案，使其起到降低输出继电器两端激励电压的作用。
The RC loop parallel with the card formed an electric circuit on the series relay coil to excite the coil and make the contact maloperate.
尽管在比较激励时间时这类继电器是最快的切换元件，但释放或关断时间却比较长。
Although these are the fastest switching elements when actuation times are compared, the release, or turnoff time, is long.
为此，提出了在继电器两端并联一个电阻器或者电容器的改进方案，使其起到降低输出继电器两端激励电压的作用。
Therefor, it is suggested that a resistor or a capacitor be connected with the relay in parallel to lower the exciting voltage at both ends of the output relay.
为此，提出了在继电器两端并联一个电阻器或者电容器的改进方案，使其起到降低输出继电器两端激励电压的作用。
Therefor, it is suggested that a resistor or a capacitor be connected with the relay in parallel to lower the exciting voltage at both ends of the output relay.
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