9905-039控制器是一种反向作用的单个致动器高压型号，电流为0-200 mA，该型号提供减速斜坡。由于这是一个高压型号，它可以由88-132伏交流电或90-150伏直流电供电。由于该控制装置是高电压型号，因此当控制装置所连接的发动机运转时，不应断开连接至端子4至9的导线，这一点非常重要如果出于任何原因发生这种情况，它可能会造成伤害，因为开路会带来极高电压的风险。

将屏蔽线连接到您的控制装置时，请查看端子，并评估它们是否必须打开或关闭才能使控制装置正常工作例如，如果使用端子17、18和19，每个端子都有特定的用途以及是否应该打开或关闭。对于第十七航站，它必须为最少燃料打开；端子18和19分别关闭，第18个端子用于超驰速度信号的丢失，第19个端子用于额定速度。

当使用速度信号损失控制时，可能仅在启动故障速度信号时将致动器电位计定位在启动燃料水平，注意，由于该控制是反向作用模型，不建议不使用启动燃料限制。

9905-039

The 9905-039 controller is a reverse acting single actuator high-voltage model with a current of 0-200 mA, which provides a deceleration ramp. As this is a high-voltage model, it can be powered by either 88-132 volts AC or 90-150 volts DC. Due to the high voltage model of the control device, the wires connected to terminals 4 to 9 should not be disconnected when the engine connected to the control device is running. This is very important. If this situation occurs for any reason, it may cause injury as an open circuit poses a risk of extremely high voltage.

When connecting shielded wires to your control device, please check the terminals and evaluate whether they must be opened or closed for the control device to function properly. For example, if terminals 17, 18, and 19 are used, each terminal has a specific purpose and should be opened or closed. For Terminal 17, it must have the minimum fuel open; Terminals 18 and 19 are closed respectively, the 18th terminal is used for the loss of the overspeed signal, and the 19th terminal is used for the rated speed.

When using speed signal loss control, the actuator potentiometer may only be positioned at the starting fuel level when starting a fault speed signal. Note that since this control is a reverse acting model, it is not recommended not to use the starting fuel limit.