800xa system not controlling 800acs drive speed
First of all, I am a newbie to the 800xa system. Our system has been running for a couple of years so this is not a new system. The trouble that I am having is that I have one of four augers that will not respond to a speed change on the main faceplate control for this portion of our system. When I say 'main faceplate' I mean that we have a Faceplate for this section of our system that has three tabs. One of the tabs is for setting the speed of these four augers individually. Three of the four augers will change speed, the fourth one will not. This problem just happened overnight yesterday. However, I can click on the individual motor and bring up the faceplate then right click and go to 'Auto SP Status' which brings up another faceplate and I can set the speed there and it will work. (The operator can't access this faceplate) The drives are 800acs ABB drives all controlled via ethernet. Any help will be greatly appreciated.
I would login on the engineering station and open the faceplate from there. Right click on the faceplate and if you see a "control structure" aspect click that it wil bring you in the control structure to the point where it's located in the controller code. Click the "control connection" aspect and select "subscribe for live data" change the speed from the faceplate and check if it changes in the control connection if so you have to start looking in the controller. As you didn't describe which controller you have the next thing is to open up the engineering tool for the controller and navigate to the part where you found the control connection. Start following the signal in the control code and see where it goes wrong.
But if you don't have much knowledge please call ABB we are glad to help you.
Next attemp: right click on the faceplate and choose diagnostics. If you have an opc tab click that if you have a subscription tab click that one. See which of the properties is for speed of the problematic auger. Change the speed on the faceplate. Close the diagnostic window and open it again (it's doesn't update automaticly) Did the value change? If yes the faceplate is working fine (which is most likely). Now write down from the opc tab: property name and aspect or from the subscription tab write down the source and take the part before : this is the aspect name. If not allready doen open the plant explorer and click on the find tool (magnifying glass) fill in the apect name and select aspects and click search. See where it brings you, If it's in the control structure in a control project you have to open Control builder M and find the same spot in the control buidler M programm and check the code for the signal there.