CC-TAON01

Brand:HONEYWELL

Type:CC-TAON01

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

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A Ramp-to-Idle speed or Ramp-to-Rated speed command may be selected from the 505E keypad, contact input, or Modbus. The last command given from any of these three sources dictates the function performed. If a 505E contact input is programmed to select between idle or rated speeds, idle speed is selected when the contact is open and rated speed is selected when it is closed. The Idle/ Rated contact can be either open or closed when a trip condition is cleared. If the contact is open, it must be closed to initiate a Ramp-to-Rated speed. If the contact is closed, it must be opened and re-closed to initiate a Ramp-to-Rated speed. When the turbine is used for mechanical drive applications, rated speed may be set at or above the minimum governor speed setting. When the turbine is used to drive a generator, “rated speed” setpoint may be set at minimum governor speed, at synchronous speed, or at any intermediate speed setting. All pertinent Idle/Rated parameters are available through the Modbus links, refer to Chapter 6 for a complete listing

NOTE This function is not the same as the ‘AUTOMATIC START MODE’. The Automatic Start Sequence can be used with any one of the three start modes. The 505E can be configured to utilize an Automatic Start Sequence to start the turbine. This sequencing logic allows the 505E to perform a complete controlled system startup from zero speed to rated speed. With this function, the turbine’s starting ramp rates and idle speed hold times depend on the length of time the unit was shut down. This sequence logic may be used with any of the three start modes (manual, semiautomatic, automatic), and is initiated by a ‘RUN’ command. With this function, when a ‘RUN’ command is given, the Automatic Start Sequence ramps the speed setpoint to a low idle setpoint, holds at this setting for a duration, ramps the speed setpoint to a high idle setpoint, holds at this setting for a duration, then ramps the speed setpoint to a rated speed setting. All ramp rates and hold times are programmable for both hot start and cold start conditions. The control differentiates between hot and cold starts by using a hours-since-trip timer. This timer starts when a shutdown has been executed and turbine speed has decreased below the low idle speed setting.

With this sequence, a set of hot-start ramp rates and hold times is programmed for use when a ‘RUN’ command is given and the turbine has been shutdown for less than the programmed ‘HOT START’ time setting. A set of cold-start ramp rates and hold times is also programmed for use when a ‘RUN’ command is given and the turbine has been shutdown for longer than the programmed ‘COLD START’ time setting. If a turbine ‘RUN’ command is given when the length of time the system has been shutdown is between the ‘HOT START’ and ‘COLD START’ time settings, the control will interpolate between the hot and cold programmed start values to determine starting rates and hold times.