ABB ACS355 Training Lesson 3: Basic Speed Potentiometer Wiring & Setup – Variable Frequency Drives
Hello everyone, this is Craig Chamberlain, with Precision Electric at precision-ele.com. We’re your industrial automation service center, drives motors, controls, automation. We’ve been doing it for a long time so if you need any of that done, make sure you give us a call.Today’s video we’re going to cover the ACS 355 series. We’re still continuing on in the advanced tutorials with a – I’m sorry, the basic
tutorial area – of this drive, and in this particular video we’re going to cover how to wire a speed potentiometer. We aren’t yet going to do start/stop control in these drives. We’re just doing the speed potentiometer. That’s this knob right here where you can turn up and down your speed with any kind of external analog reference. Technically this would also work with an external speed reference from a PLC, or any other kind of analog signal that you might have. So let’s go ahead and get it wired and get it programmed.
So I brought in my analog speed reference here with three wires and this is wired to my speed potentiometer. Now speed potentiometer is going to have three signals that it needs or is sending to my drive. The red wire on mine is wired to the +10 voltage, or the supply side of my speed pot. The black wire on mine is wired to the common on my speed pot. And then the white wire is wired to the actual reference or the varying voltage the 0 to 10 voltage from my speed pot. So your wiring coloring might not match up but in standard wiring for speed pots these this is the color scheme you want to follow, but you could very easily just use 3 blue wires for low voltage or 3 wires of any type. This is just our recommended setup.
Now in the previous video, we went over macro, and in the previous video we set up our drive for the ABB standard macro. Now depending on your actual setup the wiring should be the same for your analog input here so no matter how you programmed it you can wire your analog reference the same regardless of the programming. So let me go ahead and show you how I do mine. Here my signal wire is actually wired to terminal number two. And my common wire is wired to terminal number three. And my plus voltage is wire to terminal number four. And that does match up with the print. The print says the exact same thing. Two is my signal, three is my ground, and plus ten volt is
my red or terminal four. And that’s actually all you need to do for the analog wiring portion of it, but there’s one more important thing we need to point out here. Notice down here I have some jumpers set up. This is because when you put the drive in speed pot control, you have to give the drive a start command of some kind.
So in order for me to use the speed pot – you’re going to see this a little later in the video – we need to have some kind of a start command. Now for the simplicity of this video, I did not wire an external start command or a selector switch. That’s going to be in the next video. What I did is I set the jumpers that were on my print. Again, we had the standard ABB macro, and it tells me in that print in the manual to jumper terminals 10 and 11. So that would be this jumper here. And then what I did is I said my start command is between terminals nine and twelve. And so I set another jumper here just for my start command. Now, this is the jumper we’re going to replace with an external push button in the next video to start the drive from an actual push button instead of a jumper. But for the sake of this video like I said we’re just jumping our start command so that we can start the drive with the terminal strip and then run it off the speed pot.
So let’s go ahead and get it programmed and then we’ll show it off. Now in the previous video we actually already set up the drive for the ABB standard macro which is in the manual. It shows all the wiring diagrams we just went over a portion of it for the speed pot. So the nice thing about those macros is they preset the drive up for a configuration. And in the previous video, we just ran off the keypad. We didn’t run at all off the terminal strip. Well, the cool thing is is the terminal strips already set up for a speed pot and a start command so we actually don’t have to do any additional programming here from the speed macro.
So essentially all I need to do is to switch my keypad control which I can start right now from the keypad and stop from the keypad, is I press this local remote button and it’ll actually switch over to the terminal strip. And it’s going to start right away. And the reason I bring that up is because remember I jumpered my start command. So let me go ahead and switch to the remote, and as soon as I switch to remote, it receives that start command for my jumper and now it’s looking at my speed pot for speed. So now I can actually turn it up. So there’s full speed, and I can turn it all the way down if I want. It just sits there. If I want to switch back to my keypad control I can just press local remote again and I’m actually back in keypad control. If I want to start it, press the start command and I can now use the up and down arrow keys to control the speed on the keypad.
So that is the that is one of the nicer things about the actual macros: is that they minimize the amount of programming you have to do to set this kind of thing up. So that’s all there is to this video. We covered how to wire the speed potentiometer and we technically covered how to program it in the previous video because it already set it up for you. If you haven’t watched the previous video essentially all we did is we went in and setup the startup assistant in the keypad, and we chose the ABB standard macro at startup. There are a couple other macros that support a speed pot and you can see all of those macros right inside the manual.
So, thank you for stopping by if you have any questions don’t forget we actually sell the ACS 355 at our website that’s at precision-elec.com. And we’ll be more than happy to help you with any questions you might have. So be sure to swing by and check out what we got, and give us a call if you have any questions. Thank you.