Woodward 9907-147 ProTech system Control module

product description：

The 505 control has five PID controllers that can affect the demand of the inlet steam flow into the turbine;
the Speed/load PID controller, the Auxiliary PID controller, Auxiliary 2 PID controller, and the Cascade
PID controller. Depending on the configuration of the 505, these PIDs interact differently with each other.
Please refer to the Block diagrams listed later in this chapter to fully understand PID relationships. An
additional PID is available as an isolated control loop that is optional and can be used to drive an
independent Analog Output signal (that is not driving a Steam Valve) for any single loop ancillary control
that may be required (such as Seal Gas, Gland Seals, or lube oil pressure loops. When using the Isolated
PID Control, it is recommended to select the “Enable Readback Fault” option for the Analog Output
channel configured as the Isolated PID Demand. This will trigger an alarm in the 505 if a fault of the
output circuit is detected. By default, Analog Output channels are not configured to produce an alarm
when the output circuit has a fault

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Here are our advantage brands:

BENTLY EPRO ALL SERIES OF PRODUCTS SPAR PARTS PROBE Proximitor
PLC : AB,ABB,GE,Schneider
DCS : ABB,Siemens MOORE,Foxboro,Westinghouse,YOKOGAWA
ESD : Triconex,HIMA,BENTLY,ICS
Excitation cards : ABB,GE