Hello all, can one of you experts possibly tell me if you connect up OPEN COLLECTOR OUTPUTS in PNP or NPN configuration. I was connecting up a Mitsubishi Invertor today and used volt free contacts from a relay to signal the invertor run signal instead of directly from the PLC Transistor outputs. And i used the volt free contacts on the invertor output to signal beacons instead of the available Transistor outputs.
This is because as a Mechanical Eng with limited Electrical Experience the Transistor connections confuse me....but as i like to further myself could somebody possibly answer about OPEN COLL. being wired up in NPN, PNP configuration or both?
I know if you use PNP you put 0v direct to the load and switch the positive and vice versa with NPN.
Any easy to understand explanations and possible connection diagrams would be greatly appreciated, Thanks in advance.
This is because as a Mechanical Eng with limited Electrical Experience the Transistor connections confuse me....but as i like to further myself could somebody possibly answer about OPEN COLL. being wired up in NPN, PNP configuration or both?
I know if you use PNP you put 0v direct to the load and switch the positive and vice versa with NPN.
Any easy to understand explanations and possible connection diagrams would be greatly appreciated, Thanks in advance.