505 Debug Mode (Generic Amongst Various 505 Applications)
Written 7/2012 / Updated 11/2012

The 505 (all versions) Debug Mode includes tunable values that are not intended to be modified by the average end user, however, a few configurable values end users may need to modify are accessed via the Debug Mode.   The Debug Mode interface is more cryptic and less intuitive than the more public Program Mode or Service Mode.  Woodward's public literature for the Debug Mode is limited.  Detailed block information similar to documentation for Program Mode and Service Mode block information is no longer included in the 505 manual (although it was some years back for the standard 505). There is some information listed in the Standard 505 manual 85017v2 under the Operator Interface Chapter 3 (Tasker edit).  There are various routes to get to the Debug Mode.  Specific instructions on one of the routes is noted in Woodward 505E Application Note 51346 (Tasker Edit).  The specific Debug mode blocks will vary amongst the 505 variations, but the method for entering the Debug mode is the same.

Procedure

• Summary / Generic to multiple versions of the 505 Governors
  • Enter the Debug Mode Level  (The Debug Mode Password is 1112)
  • Then Scroll Laterally (Left or Right) to the specific Category
  • Then Scroll Down to the desired Block
  • Then Scroll Laterally again to a specific Field
  • Change the Field Value as needed
• Navigation / Generic to multiple versions of the 505 Governors / Debug and Service Modes
  • The 505 Display has 2 lines that are sometimes independent.  The active line is marked with the @ symbol.  The @ symbol can be moved up or down with the SELECT Key
  • Use the Diamond (4 Arrow) Navigation Key to Scroll up and down or left and right
  • To change values, use the ADJ Key or type in a value.
    • To Type In a Specific Value, press the ENTER Key, type in a numeric value with the Keypad including a decimal point if needed, then press the Enter Key again to accept the value.
  • Press the CLEAR Key to move back up a level in the Tree.  Press CLEAR again to exit the Debug or Service Mode
• Enter the Debug Mode (one of several methods) Generic to multiple versions of the 505 Governors
  • The turbine and the 505 governor must be shutdown
    • The Debug Mode can be accessed while the unit is running (noted 11/2012)  As with the Service Mode, you cannot make a large step change.
  • Press the Clear Key once or twice to display the Root Block "WOODWARD GOVERNOR CO."
  • Scroll down one level to the Mode Level
  • Scroll Laterally through the various Modes to the Debug Mode.  The display should indicate "Push ENTER for DEBUG"
  • Press the ENTER Key.
  • Enter the Debug Password 1112
  • Press Enter to transfer the Password
• Another Variation to Enter the Debug Mode / Generic to multiple versions of the 505 Governors
  • Woodward Application Note 51346 Instructions (Tasker Edit to focus on the Debug Mode) or (Unaltered Original)
    • Press the “PRGM” Button.
      • This takes you directly to a repeatable location in the Mode Level, the Program Mode.
      •  The text, “Password CONFIGURE”, will appear.
    • Press the Right Arrow (>) key until the text, “Push ENTER for DEBUG”, appears.
    • Press the “ENTER” Button, enter the DEBUG password “1112”, and press the “ENTER” Button.

Note, the instructions above are generic to multiple 505 version variations.
The different versions have identical hardware with the exception of
the printing on the terminal blocks and the keypad.