8237-1246 WOODWARD

8237-1246 has several different normal operating modes. This includes configuration mode, operation mode, and service mode. Configuration mode will force the hardware to enter I/O lock and place all outputs in an inactive state. The configuration mode is usually only used during the original configuration of the device. The operating mode allows for normal operation from startup to shutdown. The service mode allows calibration and adjustment during device shutdown or normal operation.

The front panel of 8237-1246is designed to provide multi-level access permissions to allow adjustment, operation, calibration, and configuration of the turbine. All turbine control functions can be executed from the front panel. It includes logical algorithms that use multiple input buttons to control, stop, start, and protect the turbine.

Woodward’s 8237-1246 provides digital control for steam turbines. It is one of several digital governors available in the 505 turbine control series. This device uses a standard LVDC (18-32 VDC) power supply.

This machine can be used in non hazardous areas. It also applies to Class I, Div. 2. Group A/B/C/D position. This device is usually installed with multi-strand copper field wiring with a rated temperature of at least 75 degrees Celsius.

8237-1246can control single or double split actuator steam turbines. It can be configured as part of the factory DCS (Distributed Control System) or used as a standalone unit. It is designed with five PID controllers, including a speed/load PID controller, a cascade PID controller, and AUX1 and AUX2 PID controllers.

his device provides an operator control panel, including a graphic control panel display screen and keyboard. This panel includes an emergency stop button, start, stop, ESC, and home buttons, a numeric keyboard and toggle up/down buttons, as well as an input key with up/down and left/right buttons. There are also four LEDs on the left side of the panel, including CPU health, IO lock, summary alarm, and summary trip.

Internally, the 8200-1300 includes a watchdog timer and a CPU fault circuit to monitor the operation of the microprocessor and its memory.