Testing of conveyor & agitator

On 24th march 2011 we tested conveyor and agitator by changing the contacts manually means without command from slave PLC.   Steps are given below for our existing plant:

1.We traced out the proper wiring ,which MCB(Miniature circuit Breaker) is connected through contactor circuit .Wiring diagram will be soon displyed.
2.  3 cables from the motor are connected to contactor n contactor also got connected to cables from R2 ralay and NO ,NC contacts are 11 & 14 in our panel..
3.contactor has supply from the source through MCB.when operator gives command,command from realys comes to contactor and contacts cganged means star to delta & supply get connected to motor/agitator.This is the logic behind wiring diagram
4.This will more understand when we will disply the wiring diagram of our panel.
conveyor motor was 3 phase,so we have to check safety aspects while working in plants.

Batch reactor daily progress report

1) SOV (Solenoid coil for double acting cylinder which acts as stopper for bottle |& lift the bottle for filling) tested by providing external 230 V A.C..Found OK.

2)Both Cylinders are working properly.

3)Master slave cable tracing done & proper termination done,its tagging is remaining.

Major work to be done in coming days:

1) Conveyor motion to be checked.

2) Limit switch checking

Procedure for checking proximity switch

1.Provide 24 v D.C. supply between 2wires ot of 3(in our case between brown & blue colur cable).
2. On proximity sensor it is clearly mentioned from which cable we get feedback (i.e. digital in) & whre we have   to give 24 v DC.
3.Any metal at specific distance it cheks & gives the feedback..

Batch process field work

Work done on 16/03/2011
1.Today we tested two proximity sensors which are used for position sensing  of bottles on conveyor in batch process loop
2.we noted its connection in B & R PLC panel.

Work to be done :
1.Solenoid coil for air supply of double acting cylinder,if solnoid valve is working then by giving air supply we have to check both solnoid valves workining
(we can check both cylinder by giving direct air supply)
2.Conveyor checking
3. Limit switch
4.Master slave connection