没有功能强大的更改控制的组织在意外停机时会拖延很长时间，因为管理员需要尝试并确定哪些变量发生了更改以及何时发生了更改。
Organizations that do not have vigorous change control end up suffering prolonged outages as the administrators try and determine what variables changed and when.
通过微电脑控制器设定开机时间，可以设定若干个开机停机时间。该机会根据您所设定的时间自动开机，关机。
Set the boot time by microcomputer controller, you can set a number of power-down time. The boot automatically set according to your time off.
它还包括霍尔元件输入、整流控制定序器、固定停机时间脉冲宽度调制(PWM)电流控制以及锁定转子保护。
It also includes, Hall element inputs, a sequencer for commutation control, fixed off time pulse width modulation (PWM) current control and locked rotor protection.
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