CC-TAID01

Product Details

Product Description

Product Description
Brand:HONEYWELL
Type:CC-TAID01
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.
At this point the 505E will ramp open the HP valve to its maximum position at the ‘HP valve Limiter Rate’ setting. • The speed setpoint will ramp to the minimum controlling speed setting at the ‘Rate to Min’ rate. • When turbine speed increases and matches the ramping speed setpoint, the 505E’s Speed PID will take control of turbine speed by controlling turbine inlet valve HP position. • Speed remains controlled at the minimum controlling setpoint 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 automatic start routine may be aborted at any time by issuing HP valve limiter raise or lower commands, or an emergency shutdown.
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 Figure 3-9. Automatic Start Mode Critical Speed Avoidance In many turbines, it is desirable to avoid certain speeds or speed ranges (or pass through them as quickly as possible) due to excessive turbine vibration or other factors. During programming, two critical speed ranges may be configured. The Idle/Rated or Auto Start Sequence function must be programmed to perform critical speed avoidance. The speed setpoint cannot be stopped in the critical band. If a Raise/Lower Speed Setpoint command is issued while in a critical band, the speed setpoint will ramp up or down (depending on raise or lower command) to the extent of the critical range. Since the lower speed setpoint has priority over a raise setpoint, issuing a lower command while increasing through the band will reverse the setpoint direction and return it to the lower limit of the band. If a lower speed setpoint command is given while in a critical band, turbine speed must reach the bottom of the band before another command can be executed.
A speed setpoint value cannot be directly entered (with the ENTER key) within the programmed critical speed band settings. In the event this is attempted, an error message will appear on the 505E front panel display. If another controlling parameter, besides the Speed PID, drives the turbine’s speed into a critical band for longer than five seconds, the speed setpoint will instantly go to the idle setting and an alarm will occur (Stuck in Critical). During a startup routine if the Speed PID cannot accelerate the unit through a programmed band within a calculated length of time, a “Stuck in Critical” alarm will be issued and the speed setpoint will instantly return to idle. The “calculated length of time” is a value of three times the length of time it should normally take to accelerate through the band (based on the “Critical Speed Rate” setting). If the “Stuck in Critical” alarm occurs on a regular basis, it may be indicating that the “Critical Speed Rate” is set too fast for the turbine to respond to.

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