Woodward 505HT, Installation And Operation Manual

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Manual 35116 505HT for Pelton Turbines
Woodward 60
Chapter 4.
505HT Display
Program Architecture
The 505 is easy to configure, due in large part to the menu-driven software. When the control is powered
up and after the CPU self-test has been completed, the control displays the home screen and the CPU
LED on the left side of the front panel should be green. The operating procedures are divided into two
sections: the Configuration Mode and the Run Modes (Operation and Calibration). The Configure Mode is
used to configure the 505 for the specific application and set all operating parameters. The Run Mode is
the normal turbine operation mode and is used to view and modify operating parameters and run the
turbine.
The configuration cannot be changed or altered while the turbine is running, however, it can be accessed
and all programmed values monitored. This minimizes the possibility of introducing step disturbances into
the system.
Display Modes and User Levels
The 505 Display operates in several modes and access user levels, each of which has a different
purpose. The modes are: OPERATION, CALIBRATION, and CONFIGURATION. In order to enter and
exit a particular mode, the user must be logged in with an appropriate user level. These user levels are:
MONITOR, OPERATOR, SERVICE, and CONFIGURE. In addition to granting authority to enter and exit
modes, user levels also determine what parameters the user is authorized to adjust. See Table 4-1.
Table 4-1. Mode Access by User Level
User Level
Mode
Operation Calibration Configuration
Monitor
Operator X
Service X X
Configure X X X
Mode Descriptions
The OPERATION mode is the only mode that can be used to run the turbine. This is the default mode.
Exiting CALIBRATION or CONFIGURATION mode will return to OPERATION mode. User levels:
Operator, Service, or Configure.
The CALIBRATION mode is used to force signal outputs in order to calibrate signals and field devices. In
this mode, the actuator, analog, and relay outputs can be manually controlled. To enter this mode the
turbine speed must be shutdown with no speed detected. User levels: Service or Configure.
The CONFIGURE mode is used to set up the parameters for a specific application prior to operation of
the unit. To enter this mode the turbine speed must be shutdown with no speed detected. When the unit
enters CONFIGURE mode the control is placed in IOLOCK which will disable all Output I/O channels. If
the control is not shutdown, navigating through the configuration pages will allow viewing of CONFIGURE
parameters, but will not permit any changes to be made.
User Level Descriptions
The Monitor user level is view-only access. All commands from the front panel are inhibited. All values
displayed on each screen are continuously updated.
The Operator user level allows for control of the turbine. Front panel commands to start, change
setpoints, enable/disable functions, and stop the turbine are accepted.
Released