How to Perform Basic VFD Programming (Video)

Video Transcript

In this segment we are going to show you how to use the basic 7 parameters to set up the Mitsubishi FR-PU07-01 advanced parameter keypad.

As you look at the top row of this keypad there is the “PRSet” ("PrSET") button, we are going to go ahead and push this one time, and we are going to go ahead and choose “parameter 1”, and at the very bottom we are going to hit “READ”. This will show you what the parameter number is, what parameter title is, and the actual setting value. This parameter is set for 60 Hertz, which is our desired setting, but for this illustration I am going to go ahead and change it to 50 Hertz. We are going to type in “5-0” and we are going to hit “WRITE”. You will notice the parameter unit blinks and the back light is lit, and you can move on to the next parameter, which is going to be parameter 2.

There are two ways of doing this, you can either push the “PR Set” button and push “2” and then “READ”, or you can simply use the “SHIFT” button, and it will scroll through numerically from low to high. Parameter 2 is the minimum frequency, and in most cases, we usually put a value of 12 as the minimum Hertz. In this case we will do that. We are going to type in “12” and we are going to hit “WRITE”. The VFD acknowledged that by a beep, and the back light is blinking.

This time we are going to use the “SHIFT” button and we are going to scroll to parameters 7 and 8. Parameter 7 is our accel. time (acceleration time). The drive comes standard with 5 seconds, but typically we like to put in something around 30 seconds, if the equipment allows. We are going to type in “30” and hit “WRITE” – again, it blinks.

We are going to move on to parameter 8, which is the decel. time (deceleration time). This one is set up for 10 seconds and we are going to go ahead and put in 30. “3-0” and hit “WRITE”.

We are going to move to parameter 9 by pushing “SHIFT”. This is where we put in the thermal value of your motor. Whatever the current rating of your motor is, we are going to go ahead and type it in here. Let’s just say your motor has a decimal place point like 15.9. You can go ahead and easily type that in by typing “1-5”, and the “READ” button actually acts as a decimal point as well, and we are going to go ahead and find the number 9. We have just entered 15.9 and we are going to confirm it by hitting “WRITE”.

We are going to use the "SHIFT" button again and find our next parameter, which is going to be parameter 14. This is our Load VF Pattern. There are two settings for this pattern. Zero is for constant torque, and 1 is for variable torque. If this is a pump or a light-duty fan, you can leave it at 1 for a variable torque setting. If it is something more of heavy equipment, like a crusher or some type of heavy-duty pump, you can go ahead and set it to zero. For illustration, we will make a change by putting it to zero for constant torque mode, and hit “WRITE”. Again, the VFD acknowledged the change.

We are going to go ahead now and use “SHIFT” and go to our last parameter setting, which is parameter 19. This is our voltage input parameter. If your motor has 208, 230, or 460 – whatever motor you have – the VFD you have will have to correspond to that voltage. In this case, the VFD is a 208 V and the motor we are going to run is 208, so we are going to type in “2-0-8” and hit “WRITE”. That has been initiated.

To get back to the main keypad after this programming, all you have to do is hit the monitor – or “MON” button – and you are right back to the very beginning.