Woodward 505HT, Installation And Operation Manual

Page: 14 / 199

Manual 35116 505HT for Pelton Turbines
Woodward 12
The nozzles routine has the options to rotate the nozzles in some conditions. The conditions are:
•
Nozzle fail: If a nozzle is selected and this specific nozzle has a signal fault or a mismatch between
demand and position the rotation will be done.
•
Operator command: The operator can give a command to rotate nozzles at any time. The command
can be issued by frontal HMI or Modbus.
•
Timer: The rotation can be done by timer (in hours). The timer is initiated every time a new start
command is issued and accepted by the control or an operator rotation command is issued.
Operator Control Panel
The 505HT is a field configurable hydro turbine control and operator control panel (OCP) integrated into
one package. A comprehensive graphical operator control panel display and keypad is located on the
505HT’s front panel. This display can be used to configure the 505, make On-Line program adjustments,
and operate the turbine/system.
Features
The 505HT provides the following features:
•
Start / Stop / unload routines
•
Black Start routine
•
Feed forward control
•
Speed Control / Droop Control (kW and Position) / Baseload
•
Manual Control (Individual nozzles manual control)
•
Small System detection logic
•
Level control (pond or Tail)
•
Nozzle Sequencing / Rotation
•
Speed / Load / Nozzle Switches
•
Nozzle limit
•
Remote analog setpoints for speed, nozzle, level, power and manual control
•
Generator breaker logic
•
Level switches for: Speed, Nozzle Position and Load
•
Integrated first-out problem indicator
•
Trip and Alarm event recorder
•
User-friendly menu format
•
Real-time trend screens
•
Real-time clock synchronization via SNTP
•
Ethernet communications
Using the 505HT
The 505HT control has three normal operating modes, Configuration Mode, Service Mode and the Run
Mode.
Configuration Mode –
This mode is used to select the options needed to configure the control to your specific turbine
application. While in this mode, the control will force the hardware into IO LOCK, meaning that no outputs
will be active, all Relays will be de energized, and all Analog output signals will be at 0 current. Once the
control has been configured, the Configuration mode is typically not needed again, unless turbine options
or operation changes. It is available to be viewed at any time. A password is required to log into this
mode.
Anytime the control is in IOLOCK all Relays will be de-energized and
all Analog outputs will be at 0 current. Ensure that the devices
receiving these commands are fail-safe at these states.
Released