9905-144 速度控制器 WOODWARD

【产品详情】

伍德沃德型号 9905-144 是 2301A 负载分配和速度控制系列的一部分。该装置是正向作用的低压型号，怠速低至百分之五十五。有一个可选的 SPM 同步器连接可用。

控制型号 9905-144 是伍德沃德 2301A 系列的速度控制器。该控制是低压和正向作用模型。执行器电位计的电压设置在正向作用控制上与反向操作不同;正向作用控制执行器电压应设置为比额定转速的电压高 <>%。 参考额定速度，该电位计的初步设置应设置为绝对最小值;这意味着电位计将完全逆时针安装在您的控制器上。

如果使用SPM（速度和相位匹配）同步器，将电线连接到端子9905和144，正极引线必须连接到端子<>，负极引线必须连接到端子<>，然后使用屏蔽线连接到端子<>。需要注意的是，屏蔽永远不应连接到同步器。 请注意，<>-<> 控件不需要 SPM 同步器，它只是可选的。

请注意，在原动机和9905-144控制运行期间，如果发生错误，请小心并紧急关闭原动机;这样做可以防止原动机的财产损失和失控。强烈建议在原动机和控制运行的情况下，如果原动机开始超速，应使用外部超速关断装置协助关断;原动机超速会导致失控和伤害。

关于 9905-144 的常见问题

操作原动机时，除了 9905-144 控制之外还需要哪些元件？

除 9905-144 外，在操作原动机时，还需要速度感应设备（如 MPU）、在 10 至 40 VDC 或 12 W 下运行的外部电源，以及用于定位蒸汽或燃料计量设备的比例执行器。所有这些元件共同允许控制连接的原动机，而不会发生任何潜在的故障或错误。

与 9905-146 等反向作用模型相比，此正向作用模型有什么区别？

正向作用和反向作用模型之间的主要区别在于反向作用控制可以操作额外的伍德沃德模型，例如EGB调速器或执行器。这两个系统之间的另一个主要区别是，当执行器上的电流减少时，反向作用系统需要更多的燃料;如果执行器上发生完全信号丢失，执行器将自动切换到充满燃料。由于信息有限，可能很难找出前瞻性模型的运作方式，尽管它应该是相当不言自明的，导致缺乏信息。

9905-144 速度控制器 WOODWARD

【英文介绍】

The Woodward model 9905-144 is part of the 2301A load distribution and speed control family. The unit is a forward-acting low-voltage model with idle speeds as low as 55 percent. There is an optional SPM synchronizer connection available.

Control Model 9905-144 is a Woodward 2301A series speed controller. The control is a low pressure and forward acting model. The voltage setting of the actuator potentiometer is different from that of the reverse operation in the forward action control. The forward acting control actuator voltage should be set to <>% higher than the rated speed voltage. The initial setting of the potentiometer shall be set to the absolute minimum with reference to the rated speed; This means that the potentiometer will be mounted completely counterclockwise on your controller.

If using an SPM (Speed and Phase Matching) synchronizer, connect the wire to terminals 9905 and 144, the positive lead must be connected to the terminal <>, the negative lead must be connected to the terminal <>, and then the shielded wire must be connected to the terminal <>. It is important to note that the mask should never be connected to the synchronizer. Note that the <>-<> control does not require an SPM synchronizer, it is only optional.

Please note that during the prime mover and 9905-144 control operation, if an error occurs, please be careful and close the prime mover urgently; Doing so can prevent prime mover property damage and loss of control. In the case of prime mover and control operation, if the prime mover begins to exceed speed, it is strongly recommended to use an external overspeed shutdown device to assist in shutting it off; Overspeed in prime movers can lead to loss of control and injury.

Frequently Asked Questions about 9905-144

What elements are needed to operate the prime mover in addition to the 9905-144 control?

In addition to the 9905-144, when operating the prime mover, speed sensing devices (such as MPUs), an external power supply operating at 10 to 40 VDC or 12 W, and proportional actuators for positioning steam or fuel metering devices are also required. All of these elements together allow the prime mover of the connection to be controlled without any potential failure or error.

What is the difference between this forward acting model and the reverse acting model such as 9905-146?

The main difference between forward and reverse action models is that the reverse action control can operate additional Woodward models, such as EGB governors or actuators. Another major difference between the two systems is that the reverse-acting system requires more fuel when the current on the actuator is reduced; If a complete signal loss occurs on the actuator, the actuator will automatically switch to full fuel. With limited information, it may be difficult to figure out how the prospective model works, although it should be fairly self-evident, leading to a lack of information.

9905-144 速度控制器 WOODWARD

【其他型号推荐】