Woodward 505D 8200-1302 Turbine control panel

Input/Output Parameters

• Speed Input: Two redundant speed inputs, which can accept signals from magnetoelectric sensors, eddy current probes, or proximity probes.
• Analog Input: 8 analog inputs, which can be configured for any of 27 functions to receive signals such as temperature and pressure, typically 4 – 20mA signal input.
• Contact Input: 20 contact inputs, of which 4 are default for shutdown, increasing speed setpoint, reset, and decreasing speed setpoint, and the rest can be configured as needed.
• Control Output: Two 4 – 20mA control outputs for controlling actuators such as electro – hydraulic converters.
• Relay Output: Eight C – type relay contact outputs, which can be used for alarms, trips, etc.

Functional Parameters

• Operation Modes: There are three normal operation modes: configuration, operation, and calibration.
• Startup Function: It supports automatic startup sequences for hot and cold starts and can select temperature input options.
• Speed Control: It has 3 critical speed avoidance frequency bands, and can realize reverse rotation detection and alarm. It adopts Optitune adaptive PID technology to optimize the performance of the steam turbine. The acceleration PID can limit overshoot and ensure stable and efficient plant startup.
• Monitoring Function: It has 10 external alarm inputs and 10 external DI trip inputs, which can provide trip indication for trip and alarm events with relevant RTC timestamps. It can also monitor peak speed indication overspeed trip, zero speed detection, long – distance droop, frequency dead zone, etc.

Other Parameters

• Power Supply: Low – voltage 18 – 36VDC isolated power input.
• Communication: It is equipped with an Ethernet communication interface, which can be connected to the plant DCS, service tools, and remote view operator control panel; it supports the CANopen protocol for connecting Woodward Varistroke actuators and DSLC – II power management networks.
• Operation Interface: The front panel is integrated with a graphical human – machine interface (HMI) screen, supporting multiple languages including Chinese. The screen is large, making it easy for parameter navigation and viewing. It can locally view real – time trends, and the tag names can be configured for easy identification of connections. There is an internal “steam turbine simulator” for offline training and advanced testing before system changes.
• Operating Temperature: -22 – 158°F (-30 – 70°C).
• Storage Temperature: -22 – 158°F (-30 – 70°C).