VMIVME-7455

Brand:GE

Type:VMIVME-7455

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.

Cascade Setpoint The Cascade setpoint can be adjusted from the 505E keypad, external contacts, Modbus commands, or through a 4–20 mA analog input. A specific setting can also be directly entered from the 505E keypad or through Modbus commands. The Cascade setpoint range must be defined in the program mode. Program settings ‘Min Cascade Setpoint’ and ‘Max Cascade Setpoint’ define the range of the Cascade setpoint and control. NOTE Cascade setpoint raise/lower contact inputs act as speed setpoint raise/ lower contacts when Cascade is not active or in control. This allows a single set of contacts (one SPDT switch) to control the Speed setpoint when the generator breaker is open, the load setpoint when paralleled to a utility, and the Cascade setpoint when enabled. Alternatively, a second set of contacts (speed raise and lower) could be used to independently control the speed and load setpoints. When a raise or lower Cascade Setpoint command is issued, the setpoint moves at the programmed ‘Casc Setpt Rate’ setting. If a Cascade raise or lower command is selected for longer than three seconds, the Cascade setpoint will move at the fast rate which is three times the cascade setpoint rate. The Cascade setpoint rate, fast rate delay, and fast rate can all be adjusted in the Service mode. The shortest length of time a setpoint will move for an accepted raise or lower command is 120 milliseconds (240 milliseconds for a Modbus command). If the Cascade setpoint rate is programmed for 10 psi/sec, the smallest increment it will move is 1.2 psi (2.4 psi for Modbus).

A specific setpoint may also be directly entered from the 505E keypad or through Modbus communications. When this is performed, the setpoint will ramp at the ‘Casc Setpt Rate’ (as defaulted in Service mode). To “enter” a specific setpoint from the 505E keypad, press the CAS key to view the Cascade control screen, press the ENTER key, enter the setpoint level desired, then press the ENTER key again. If a valid number was entered, equal-to or between the min and max setpoint settings, the setting will be accepted and the Cascade setpoint will ramp to the “Entered” setpoint level. If an invalid number is “entered”, the setting will not be accepted and the 505E’s screen will momentarily display a value out- ofrange message. When a valid setpoint value is entered, the setpoint will ramp at the Cascade Setpoint Rate to the newly entered setpoint value. This ‘Entered’ rate is tunable through the Service mode. Refer to Volume 2 of this manual for information on which programmed settings are tunable through the 505E’s Service mode. Service mode values can be tuned/adjusted while the 505E is shutdown or in the RUN mode.