Woodward 723PLUS Digital Controller

Handheld programmer and menu: The handheld programmer obtains power from the 723PLUS controller, connects to the RS-422 communication serial port of the controller, performs self check after power on, and displays application related information on the screen. The controller has a service menu and a configuration menu. The configuration menu needs to be entered when I/O is turned off (engine stopped), and the service menu can be directly entered through buttons. The operation menu and settings

Control set point input

Overview

Due to differences in installation environment, system, and component tolerances, the 723PLUS controller needs to be adjusted for specific systems to achieve optimal performance. Setpoint input can be completed through a handheld programmer or by connecting to a PC (using Watch Window software and Servlink software).

Handheld programmer and menu

Programmer connection and self-test

The handheld programmer (model 9907-205) obtains power from the 723PLUS controller and connects to the RS-422 communication serial port (J1 terminal) of the controller. When connecting, slightly loosen the right screw of the J1 port cover plate, rotate the cover plate clockwise to expose the 9-pin connector, and then firmly insert the programmer connector into J1.

After connecting the programmer to the controller, it will perform a power on self-test. After the self-test is completed, the screen will display two pieces of information related to the application. Press the ID key to switch between displaying the software's part number and version letter.

Menu type and access

Configure menu: It needs to be accessed while the engine is stopped. Press the corresponding button, and the screen will display "To select configure, press enter". After pressing the ENTER key, it will display "To shutdown I/O, press enter". Press the ENTER key again to enter. If the engine is running during this process, it will shut down due to controller I/O shutdown.

Service menu: Press the DOWN ARROW key to access without shutting down the engine.

Menu Operation

Move between menus: Use the LEFT ARROW and RIGHT ARROW keys.

To move between set points within the menu: use the UP ARROW and DOWN ARROW keys.

Return to menu title: Press ESC key.

Exit menu: Press the ESC key, and the configuration menu will automatically save the set points when exiting.

Setpoint adjustment

Arrange mode

Use the TURTLE UP or RABBIT UP keys to increase the set value, and the TURTLE DOWN or RABBIT DOWN keys to decrease the set value. The adjustment rate of the RABBIT key is about 10 times that of the TURTLE key, which is suitable for situations where a large adjustment value is required.

For settings that require the selection of TRUE or False, use the corresponding increase or decrease keys.

Use the+or - keys to gradually change integer values in the application software.

To enter a precise value, press the=key, enter the desired value, and then press the ENTER key, but the value must be within 10% of the existing value.

Save Setpoints

At any time, the SAVE key can be used to save the set points and transfer the new set point values to the EEPROM memory, which retains all set points even when the controller is powered off.

To prevent the loss of set values after the controller is powered off due to the failure to save the set points, which may damage the engine, it is necessary to save the set points before removing the controller power supply.