A kind of the pulse control mode, the drive and motor closed loop, but not to the numerical control system, the feedback device, in a sense, can open loop control called the servo control.
一种采用脉冲控制方式，此种驱动器与电机闭环，但不反馈到数控系统，这种驱动器在某种程度上可称为开环控制的伺服控制。
A kind of the use of impulsive control mode, the drive and motor closed loop, but not feedback to the numerical control system, this drive, in a sense, can open loop control called the servo control.
一种采用脉冲控制方式，此种驱动器与电机闭环，但不反馈到数控系统，这种驱动器在某种程度上可称为开环控制的伺服控制。
Anolog speed signal VEL from SDC is also taken as speed feedback signal to form speed loop in gun servo system.
SDC输出的模拟速度信号VEL还可以作为速度反馈信号以构成火炮伺服系统中的速度回路。
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