freakaftr8
Member
hello all brand new to this forum and also new to PLC programming.
here's my dilemma,
I am installing a PLC and a VFD Drive unit into a conveyor system that is going to use nozzles to spray an object after it finds the object in a laser window.
essentially the items that I have purchased is the Eaton plc also a Automation direct VFD Drive, two photosensors and spray nozzle and a pump 24v controlled.
the way that this platform is going to work is the motor will start running as the PLC gives the signal to turn on the VFD once the conveyor track starts moving at a set speed from the VFD there is a laser sensor or proximity sensor if you will the item is placed on the conveyor amd the item is going to come into the window of the first sensor and hence that will turn on the spray jet that is placed after the sensor this is going to spray the item that's traveling down the conveyor and I now have to fix a time delay for the spray jet to turn off until the next item comes into the proximity sensors eye.
now this being said there is one more proximity sensor placed at the end of the conveyor this sensor is going to turn off the track from moving until the object is removed from the track. The reason this is there is so the object does not fall off the end of the track if nobody is over there to pick it up. Both of these proximity sensors are eaten made in both the same model.
the other items that will be attached to this unit are 2 emergency stop switches and 1 switch with two buttons in it for a two mode system. first mode is continuous loop utilizing all the sensors to notice when the object is that the end of the track to stop the track. The other button is to continuous feed ignoring the last sensor for a stop operation.
I have a laptop with USB cable and software for the PLC but I have never written anything like this before ladder logic. Could somebody direct me or possibly write up a sketch of a quick and dirty ladder that would make the system operate the way I would want it to?
if you need any other information just let me know I have everything on hand. Thank you very much
here's my dilemma,
I am installing a PLC and a VFD Drive unit into a conveyor system that is going to use nozzles to spray an object after it finds the object in a laser window.
essentially the items that I have purchased is the Eaton plc also a Automation direct VFD Drive, two photosensors and spray nozzle and a pump 24v controlled.
the way that this platform is going to work is the motor will start running as the PLC gives the signal to turn on the VFD once the conveyor track starts moving at a set speed from the VFD there is a laser sensor or proximity sensor if you will the item is placed on the conveyor amd the item is going to come into the window of the first sensor and hence that will turn on the spray jet that is placed after the sensor this is going to spray the item that's traveling down the conveyor and I now have to fix a time delay for the spray jet to turn off until the next item comes into the proximity sensors eye.
now this being said there is one more proximity sensor placed at the end of the conveyor this sensor is going to turn off the track from moving until the object is removed from the track. The reason this is there is so the object does not fall off the end of the track if nobody is over there to pick it up. Both of these proximity sensors are eaten made in both the same model.
the other items that will be attached to this unit are 2 emergency stop switches and 1 switch with two buttons in it for a two mode system. first mode is continuous loop utilizing all the sensors to notice when the object is that the end of the track to stop the track. The other button is to continuous feed ignoring the last sensor for a stop operation.
I have a laptop with USB cable and software for the PLC but I have never written anything like this before ladder logic. Could somebody direct me or possibly write up a sketch of a quick and dirty ladder that would make the system operate the way I would want it to?
if you need any other information just let me know I have everything on hand. Thank you very much