Hi, Craig Hartman for VFDs.com. Today we are going to learn basic programming of the Mitsubishi F700 Series variable frequency drives and we will use the advanced PU07 programmer.
We have here our Mitsubishi F700 series drive. The F700 is a good general-purpose drive in the use of all sorts of applications – such as fans, pumps, and industrial processes. This is a 200 volt series drive, so we’ve wired it to 230 volt, 3-phase input. It’s also rated for 34 amps. Today, we are going to learn how to program it with the advanced programmer. I am simply going to squeeze in on these tabs and remove the standard programmer that comes with the drive, and I am going to plug in the PU07 advanced programmer. The advanced programmer is very economical and has a number of features that I think you will like. We press “HAND”, that puts us in the hand mode and allows this programmer to be in charge of the drive and allows us to program the drive.
The first thing you should program on the drive is the volts per Hertz, so let’s do that. The voltage is parameter 19, so I simply push “parameter set” ("PrSET"), “19” and “READ”, and there it is. It is set for 230 volts, my motor happens to be 208 volts, so I am going to type in “2-0-8” and then I am going to push “WRITE”. You will notice that it flashed 208 volts and it says completed, letting us know that that parameter has been changed.
The next thing I will change is the frequency. I push “parameter set”, “3”, and “READ” and this is the motor rated frequency. In this case, it says 60 Hertz, and that is the rating on the nameplate of my motor so I will leave that as it is.
Let’s cover the first 10 parameters, which are the basic parameters that you are going to want to set. We hit “parameter set”, “1”, and “read”. This is your maximum frequency. The maximum frequency is set at 60 Hertz. Maybe I don’t want my motor to go that fast, so I am going to change it to 58 Hertz, and push “WRITE”. Now it will not allow the motor to go faster than 58 Hertz.
I can just push “SHIFT” and it will go to the next parameter, parameter 2. This is set for 12 Hertz and that is about 20% speed, I am okay with that.
We press “SHIFT” one more time, this is the frequency that we looked at earlier.
We press “SHIFT” again and we get to preset frequency F4. Parameters 4, 5, and 6 are preset frequencies that will allow you to run at certain predetermined frequencies if that is the way you want to run the drive. Ordinarily, we want to have an analog input that will allow us to change the speed of the drive.
Let’s press “SHIFT” one more time, and we have our acceleration time. It is set for 44 seconds. I want it to go a little quicker than that, so I am going to set it for 25. “25”, “WRITE” sets the acceleration time for 25 seconds. Now it will go from zero to 60 Hertz in 25 seconds.
Pressing “SHIFT” again, we get to parameter 8. It is set for 90 seconds, I think we can go a little quicker than that, let’s set that for 45 seconds. Typically, the deceleration time is slower than the acceleration time.
Finally, we have parameter 9. Parameter 9 is the full load amps of the motor nameplate. My motor nameplate says that it is 24 amps, so I will type “24” and “WRITE”, and this will now protect my motor at its rated current of 24 amps.
Now I am going to change to “Auto Mode”. When I press “Auto mode” ("AUTO"), it transfers control to the digital inputs and the analog inputs into my drive. I have a switch wired up, and we wired this switch between STF – that is start forward – and common. When we turn the switch on, it shorts start forward and common, it tells us that we have a start forward command. You can see the frequency ramping up. We are in auto mode, we are running in forward direction, we have a start forward command, and we are running at 12 Hertz. If I push “SHIFT” here while we’re monitoring the drive, it shows me the amps. Press “SHIFT” again, and we see the volts. Press “SHIFT” again, it shows me my alarm history, “SHIFT” again gives me some others if those were programmed, and one more time and we get to a smaller display which gives me Hertz, amps, and volts on the same screen. This can be a very handy screen to look at. And I press “SHIFT” one more time and we are right back to the 12 Hertz running frequency that we are requesting from the drive.
So that is it, basic programming on the Mitsubishi F700 Series Drives.