Product Details
Product Description
Product Description
Brand:GE
Type:VMIVME-2128
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.
A contact input can be programmed to enable and disable the Remote Extr/Adm Setpoint function. When this contact is open the remote setpoint is disabled, and when it is closed the remote setpoint is enabled. The contact can be either open or closed when a 505E trip condition is cleared. If the contact is open it must be closed to enable the remote setpoint. If the contact is closed it must be opened and re-closed to enable the remote setpoint. When both Remote Extr/Adm Enable and Extr/Adm Control Enable commands are programmed, each function is enabled by its respective command selection. If Remote Extr/Adm Enable is selected, only the Remote Extr/Adm Setpoint will be enabled. If Extr/Adm Control Enable is selected, only Extr/Adm control will be enabled. If Remote Extr/Adm Disable is selected, only the Remote Extr/Adm Setpoint will be disabled. If Extr/Adm Control Disable is selected, both Remote Extr/Adm control and Extr/Adm control will be disabled. If no external contact input or function keys are programmed for the ‘Enable’ commands, Extr/Adm Control and Remote Extr/Adm Control must be enabled from either the front panel keypad or through Modbus. Since the front panel and Modbus provide both Remote Extr/Adm Enable and Extr/Adm Control Enable commands, they will operate in the same manner as ‘both enables programmed’. To enable and disable the Remote Setpoint from the 505E’s keypad, press the Ext/Adm key to view the Extr/Adm control screen, then press the Scroll Down key until the Remote Extr/Adm Status Screen is displayed. At this point press the “Yes” key to enable the function, or press the “No” key to disable the function. Refer to Volume 2 of this manual for information on related Service mode tunables. All pertinent Remote Extr/Adm Setpoint parameters are available through the Modbus links. See Chapter 6 for a complete listing of Modbus parameters. Cascade Control The Cascade control can be configured to control any system process, related to or affected by turbine speed or load. Typically this controller is configured and used as a turbine inlet or exhaust pressure controller.
Cascade control is a PID controller that is cascaded with the Speed PID. The Cascade PID compares a 4–20 mA process signal with an internal setpoint to directly position the speed setpoint, thus changing turbine speed or load until the process signal and setpoint match. By Cascading two PIDs in this fashion, a bumpless transfer between the two controlling parameters can be performed. When enabled, the Cascade PID can move the speed setpoint at a variable rate up to the ‘Max Speed Setpoint Rate’ setting (programmed under the CASCADE CONTROL header). Since Cascade is a secondary speed setting function, the Speed PID must be in control of the 505E’s LSS bus in order for Cascade to take control. When the 505E is configured for a generator application, both the utility tie and generator breakers must be closed, before the Cascade PID can begin controlling a process. When not configured for a generator application, turbine speed must be greater than the minimum governor setpoint before the Cascade PID can begin controlling. Cascade control may be enabled and disabled from the 505E keypad, a contact input, or Modbus communications. The last command given from any of these three sources dictates the Cascade PID’s control state.
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