Product Details
Product Description
Product Description
Brand:HONEYWELL
Type:CC-PDOB01
Origin: the United States
Warranty: 365 days
Colour: new/used
Shipping method: Courier delivery
Module of PLC, DCS, ESD system card, the card is a vibration monitoring system, steam turbine control system module, the advantages of the gas generator spare parts brand: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts
Our main products are widely used in metallurgy, petroleum, glass, aluminum manufacturing, petrochemical industry, coal mine, papermaking, printing, textile printing and dyeing, mechanical, electronic manufacturing, automobile manufacturing, plastic machinery, electric power, water conservancy, water treatment/environmental protection, boiler heating, energy, power transmission and distribution and so on.
Open HP Trip & Throttle valve at a controlled rate • When turbine speed increases to the minimum controlling speed, the 505E’s Speed PID will take control of turbine speed by controlling turbine inlet (HP) valve position. 4. Open HP Trip & Throttle valve to 100% • Speed remains controlled at the minimum controlling point until action is taken by the operator or the ‘Auto Start Sequence’, if programmed, begins controlling. At this point extraction, admission, or extr/adm may be enabled using the procedures stated later in this chapter. The HP Valve Max and Min Limit, LP Valve Max and Min Limit, HP and LP Valve Limiter Rates, and the Rate to Min settings are tunable in the Service mode. WARNING The HP trip-and-throttle valve must be closed before pushing the ‘RUN’ key in Manual Start mode. If a RUN command is given while the trip-and-throttle valve is open, there exists a possibility of turbine runaway with resultant serious injury or loss of life. START TIME 100% 0% ACTUATOR SPEED VALVE LIMITER COMMAND TRIP & THROTTLE VALVE CONTROL SPEED Operator Must Throttle Open Trip & Throttle Valve Figure 3-7. Manual Start Mode Example Semiautomatic Start Mode The following startup procedure is employed when the Semiautomatic start mode is configured: 1. Issue a RESET command (to reset all alarms and shutdowns) • At this point the 505E will ramp open the LP valve limiter to its maximum position. • If programmed as extraction only, the LP valve position will ramp to the maximum limit until extraction is enabled. • If programmed for any admission, the LP valve position will vary to maintain zero extraction/admission flow. 2. Open the HP Trip & Throttle valve (verify that the turbine does not accelerate)
3. Issue a RUN command • At this point the speed setpoint will ramp to the minimum controlling speed setting at the ‘Rate to Min’ rate. 4. Raise the 505E’s HP Valve Limiter at a controlled rate. • When turbine speed increases to the minimum controlling speed, the 505E’s Speed PID will take control of turbine speed by controlling turbine inlet (HP) valve position. 5. Raise the 505E’s HP Valve Limiter to 100%. • Speed remains controlled at the minimum controlling point until action is taken by the operator or the ‘Auto Start Sequence’, if programmed, begins controlling. At this point extraction, admission, or extr/adm may be enabled using the procedures stated later in this chapter. The valve limiter will open at the ‘HP Valve Limiter Rate’ and may be moved using the 505E keypad, external contacts, or Modbus communications. The HP Valve Max and Min Limit, LP Valve Max and Min Limit, HP and LP Valve Limiter Rates, and the Rate to Min settings are tunable in the Service mode. START TIME 100% 0% ACTUATOR SPEED VALVE LIMITER COMMAND TRIP & THROTTLE VALVE CONTROL SPEED Operator Must Manually Raise Valve Limiter Figure 3-8. Semiautomatic Start Mode Example Automatic Start Mode The following startup procedure is employed when the Automatic start mode is configured: 1. Issue a RESET command (to reset all alarms and shutdowns) • At this point the 505E will ramp open the LP valve limiter to its maximum position. • If programmed as extraction only, the LP valve position will ramp to the maximum limit until extraction is enabled. • If programmed for any admission, the LP valve position will vary to maintain zero extraction/admission flow. 2. Open the HP Trip & Throttle valve (verify that the turbine does not accelerate) 505E Digital Governor Manual 85018V1 54 Woodward 3. Issue a RUN command
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