Compact, low cost controller for UF application, can be integrated with panels of any capacity plant. This controller makes any plant operation completely automatic. The controller comes ready with RS 485 communication port which can be used for BMS/ SCADA/ REMOTE MONITORING SYSTEM
It''s unique microprocessor based controller ideally suitable for most waste water treatment plant with facility to control feed pump, blower, sludge pump and transfer pump. Each drive can be automatically switched over to its standby drive after a set time interval. An integral process mimic diagram with LED indicators along with a four line alphanumeric display ensures easy understanding of the status of operation of the plant. This controller can be easily integrated with panels of any capacity system and prove to be a cost effective solution over conventional PLCs. Built in RS-485 output helps in logging the data electronically, which can be reproduced for the inspection or audit purpose
The control panel is designed to operate a UF system automatically. All the steps happen sequentially after the set timings. One can configure two counters after any step which would initiate the Step sequence defined. All step timings are settable at the site For example, one has programmed 3 steps viz Forward Flush, Backwash & Cross Flow & default step is Service. Now we can program the controller in such a way that each service step is followed by a Forward flush. After x number(settable) of such service-forward flush cycles*, the unit will go to backwash step. Further, after y number of backwash cycles unit goes to cross flow step. One can switch on/off any output in any step(in password 678)*Note: In case the diff. Pressure input gets energized before the set number of Service-forward flush cycles; the unit will immediately go into backwash. The panel basically can take 5 inputs namely raw water tank level, treated water tank level & three auxiliary inputs(which can be configured as DPS- differential pressure switch, TWLOL-treated water tank low level, RL2, DOSLVL) and controls 11 outputs viz. Raw water pump, Backwash pump and 8 valves(solenoid/motorized).The advanced electronic also takes care of required motor protection such as Overload, dry running & single phasing.
The Astero microprocessor based panels are ideally suited for the plants where automatic pump control is required as they have the complete operating logic of the process pre-programmed. The panels basically can take 4 inputs from the level switches and controls the two pumps, blower & drain valve. The advanced electronics also takes care of the required motor protection such as overload, dry running, and single phasing.
Upon switching ON the power supply of the panel, the processor will start the air blower & check for equilisation tank level input. If the input is ON (open), then influent transfer pump will start & if clarified water tank level is ON (open) filter feed pump will start. After set service time (running of Air blower) sludge drain valve will open for the set time.