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Brand:EATON
Type:MP3010
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.
Controlled Shutdown The 505E’s Controlled Shutdown function is used to stop the turbine in a controlled manner, as opposed to an Emergency Trip. When a STOP command (controlled shutdown) is issued the following sequence is performed: 1. All control PIDs and functions are disabled except the Speed and Extr/Adm PIDs. 2. The Extr/Adm control is disabled (the LP limiter is raised for Extraction applications). 3. The Speed Setpoint is ramped to zero at the speed setpoint slow rate. 4. After the Speed Setpoint reaches zero, the HP valve limiter is instantly stepped to zero. 5. When the valve limiter reaches zero, the 505E executes a Shutdown command. 6. A “TRIP / Shutdown Complete” message is displayed on the 505E front panel. NOTE On generator applications, the 505E does not automatically issue a generator breaker open command upon reaching a min load level.
With the control in the run mode and the turbine turning, when the 505E’s “STOP” key is pressed, the control will display a message prompting the operator to verify the command (Manual Shutdown ? / Push YES or NO). At this point if the “YES” key is pressed the control will perform the controlled shutdown sequence explained above. Pushing the “NO” key will cause, no change in the 505E’s operation, and the ‘CONTROLLING PARAMETER’ screen will be displayed. This verification feature prevents an unwanted shutdown if the STOP key is accidentally pushed. A controlled shutdown can be initiated or aborted from the 505E front panel, a programmed contact input or either Modbus communication link. Verification is not required if a controlled shutdown command is initiated by a programmed contact input or Modbus communication link. The controlled shutdown sequence can be aborted at any time. During a controlled shutdown sequence, by pressing the STOP key, the 505E will display a ‘Manual Shutdown In Ctrl / Push NO to Disable’ message. Pressing the “NO” key from this screen will cause the shutdown sequence to be aborted, and the control to display a ‘Manual Shutdown Stopped / Push YES to Continue’ message. At this point the shutdown sequence can be re-initiated when desired, or the unit can be brought back to a fully operational state. If an external contact is programmed to issue a controlled shutdown command, closing the contact will initiate the controlled shutdown sequence. The shutdown sequence will go through the same steps described above, with the exception that verification of the shutdown sequence is not needed. Opening the programmed contact will stop the sequence. The contact can be either open or closed when a trip condition is cleared. If the contact is open it must be closed to issue the command. If the contact is closed it must be opened and re-closed to issue the command. The Modbus initiated Control Shutdown Sequence requires two commands. One to start the sequence and the other to stop it. The speed sensor failure is overridden when a controlled shutdown is initiated. NOTE This command can be disabled through the Service Mode, if desired (see Key Options). When disabled, the Controlled Stop feature is disabled from front panel, Modbus, and contact commands. See Chapter 5 of this Volume for all 505E Service panel messages.
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