Woodward 8280-481 模拟负载共享数字速度控制单元

【产品详情】

8280-481 是一款高压（90 至 150 Vdc）控制器，是伍德沃德 723PLUS 模拟负载共享数字速度控制单元之一，专为低速发动机而设计。低速发动机是指额定转速为 130 rpm 或更低的发动机。该低速控制器还提供低压版本，以及高速发动机的高压和低压选项。

8280-481 的控制选项包括：

磁性拾音器（最低 400 Hz 磁性拾音频率）

接近开关输入（速度信号频率低于 1000 Hz）

4-20 或 0-200 mA 执行器输出

0-1 或 4-20 mA 模拟输出

串联执行器输出

两个串行端口和一个 LON 通道提供了多种通信选项，包括外部 Modbus 兼容设备、伍德沃德 LinkNet I/O 节点、ServLink 设备（用于监视窗口和控制视图等客户端）和伍德沃德手持式编程器（部件 9907-205）。

用于往复式发动机的 723PLUS 数字速度控制 — 模拟负载分配安装和操作手册 02879 提供了有关与此控制器兼容的附件的更多信息。这包括上面列出的通信选项以及专用于负载控制和其他发电机控制功能的设备。

8280-481 采用钣金机箱，适用于危险场所，但在为 723PLUS 速度控制选择位置时仍需采取预防措施。硬件容易受到电磁干扰，应保护其免受高压和大电流设备的影响。还应防止振动和直接暴露于水中（包括容易结露的环境），并应安装在操作期间保持足够通风和 –40 至 +70 °C 温度范围的位置。手册 02879 具有额外的安全预防措施，在选择此控件的安装位置之前应查阅。

Woodward 8280-481 模拟负载共享数字速度控制单元

【英文介绍】

The 8280-481 is a high voltage (90 to 150 Vdc) controller that is one of the Woodward 723PLUS analog load sharing digital speed control units designed for low-speed engines. Low-speed engines are those rated at 130 rpm or less. The low-speed controller is also available in low-pressure versions, as well as high and low pressure options for high-speed engines.

Control options for the 8280-481 include:

Magnetic pickup (minimum 400 Hz magnetic pickup frequency)

Approach switch input (speed signal frequency less than 1000 Hz)

4-20 or 0-200 mA actuator output

0-1 or 4-20 mA analog output

Series actuator output

Two serial ports and an LON channel provide a variety of communication options, including external Modbus compatible devices, Woodward LinkNet I/O nodes, ServLink devices (for clients such as monitoring Windows and control views), and Woodward Handheld programmers (part 9907-205).

The 723PLUS Digital Speed Control for reciprocating Engines - Analog Load Distribution Installation and Operation Manual 02879 provides more information about accessories compatible with this controller. This includes the communication options listed above as well as devices dedicated to load control and other generator control functions.

The 8280-481 uses a sheet metal chassis and is suitable for use in hazardous locations, but precautions still need to be taken when selecting a location for the 723PLUS speed control. Hardware is vulnerable to electromagnetic interference and should be protected from high voltage and high current devices. It should also be protected from vibration and direct exposure to water (including environments prone to condensation) and should be installed in a location that maintains adequate ventilation and a temperature range of -40 to +70 °C during operation. Manual 02879 has additional safety precautions that should be consulted before choosing where to install this control.

Woodward 8280-481 模拟负载共享数字速度控制单元

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