Pacific PC832-001-T servo system

Description

Pacific PC832-001-T servo system

Pacific PC832-001-T servo system

The PC832-001-T packaging is totally enclosed single axis panel mount. The next figure gives the key dimensions for use in physically mounting the product. When mounting multiple units on one panel there should be at least 20 mm (0.75″) of air space on the sides and 40 mm (1.5″) or air space above and below the unit. When mounting multiple drives in a row, the stiffness of the drive and the mounting panel may be too low. To increase the mounted mechanical integrity, connect to the threaded insert on the top front edge. The overall drive panel dimensions and the mounted depth, not including mating connectors, is listed in the below chart. The extra depth for mating connectors is 1.0″ or less.

The mounting dimensions gives the key dimensions for use in physically mounting the product. When mounting multiple drives in a row, the stiffness of the drive and the mounting panel may be too low. To increase the mounted mechanical integrity, connect to the threaded insert on the top front edge. The overall drive panel dimensions and the mounted depth (not including mating connectors) are listed in the below chart. The extra depth for mating connectors is 1.0″ or less.

External Regen

The clearest indication that an external regen resistor is needed, is that the drive faults on over-voltage when the motor decelerates. The Fault LED is solid on and the variable FaultCode shows ‘over-voltage’ or ‘external regen fault’. For additional information regarding this topic, refer to the manual, part number MA830.

Final boost flow manual adjustment system. During the final charging time, the DCS system outputs signals to the two final charging control valves according to the set opening curve to ensure that the final charging flow rate is basically constant, in order to reduce fluctuations in the purified gas output. Considering that the final charging regulating valve gradually changes from a small opening to a large opening during the final charging time, as the first equalizing valve is connected to the regulating valve, in order to prevent any impact on the tower being charged during the equalizing process, a few seconds before the start of the equalizing process, the program control system outputs a signal to close the regulating valve. After the equalizing process is completed, the leading signal disappears, and the final charging flow rate is controlled by the manual regulating system. The final charging control valve of the decarbonization system plays two roles, which are used to control the flow rate of the final boosting step and the flow rate of the flushing step (system 1 # is only used for flow control during the final charging stage). Therefore, two different openings should be set separately. Set a fixed opening during flushing (by opening the KV-5 valve for a few seconds during the evacuation phase). The action of the regulating valve during final charging is based on the opening curve set by the program. If the opening is too small, it will affect the output of product gas and cannot meet the needs of final charging pressure. The setting values of the regulating valve are as follows:

Among them, PE1R is the pressure after the completion of the pressure equalization stage; PFR is the pressure t at the completion of the final charging stage, which is the final charging process time, starting from 0 tFR (the set value of the final charging time); K is the slope coefficient, adjust the K value to ensure that the final charge is in place, K=1-1.2. Using the pressure of the final charging suction tower (collected by the transmitter and sent to PFR) as the sampling PV of the final charging control valve, PID adjustment is carried out based on the difference between the set value SP and the sampling value PV to track SP, achieving uniform and stable final charging and ensuring small fluctuations in product gas flow. 4) The pressure recording system of the eight adsorption towers displays the working pressure of the eight adsorption towers in a centralized manner on the DCS system. The primary instrument is the Rosemount 3051 intelligent pressure transmitter, which converts the pressure of the eight adsorption towers into a 4-20mA current signal and sends it to the analog input module of the DCS to achieve pressure display, historical review, and real-time trend recording on the DCS system. Due to the different pressure values of each tower at different stages, the working condition of the adsorption tower can be observed by observing the recording curve through the pressure recording system. When the on-site programmable valve malfunctions, the tower pressure curve can quickly and accurately identify the faulty programmable valve.

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