Existing reviews of 1 hp VFD, Single Phase to Three Phase VFD
Regarding some parameters
If I understand it, P6.31 & P6.32 are set to match the pressure sensor maximum and minimum measurement values (at 20mA and 4mA respectively). Please could you explain what P6.30 (Given pressure) is in more detail, and how it relates to the Sleep pressure (P6.37) and Wake-up pressure (P6.35).
From:
Armani
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Date:
20/09/2024
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Regarding the constant pressure water supply system, P6.30 (given pressure) is the target pressure level you require the water pump to reach after running. The sleep pressure is the pressure level at which the VFD is required to stop running the pump after the water pump pressure reaches the set pressure, and the VFD enters sleep mode. As the pump stops, the pressure will slowly drop. When the pressure drops to the wake-up pressure level (the wake-up pressure will be lower than the set pressure), the VFD automatically starts running the water pump, causing the water pressure to automatically increase.
You can refer to our test case video of constant pressure water supply, see on: https://www.youtube.com/watch?v=H7CLg6szSKw
I am using this single phase to three phase VFD under PLC control, and I encountered difficulties in using it, so it took me a lot of time to figure out how to use it. I changed F0-02 to 1: Terminal Control, and I changed F0-03 to 0: Digital Setting. I have changed the parameters F4-01 to 2 for reverse, and F4-02 to 8 for Free Stop. It looks like the buttons are supposed to pull the digital inputs to low (sourcing the 24 V through inputs to COM), where the 24 V will be pulled across an LED whose light is recognized by a phototransistor. So far it is not working. I really need help. I have "fat-thumbed" the parameter F0-01 away from its default value and I have not been able to find out what that parameter is. The inverter-related parameters provided on your official website are not detailed enough. Where can I find a complete list of parameters?
From:
Phillip
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Date:
07/05/2024
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Regarding the forward and reverse control of the VFD, you can refer to the wiring instructions and parameter settings in the attachment. When testing, you can first use the button switch to perform a forward and reverse test. If the test is successful, use the PLC to control the relay instead of the button switch to control the VFD.
Hello I’m looking for information on output torque settings on my vfd, the manual supplied with the product is generic and doesn't even show the full usage of p1-9 functions your manual ends at p8.37 I'm looking for info to try to get as much torque from the 3 phase motor but I don’t have the required information is it possible to get tech support from somebody their who knows how to program the vfd?
From:
Rory
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Date:
04/02/2024
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If your VFD serial number s/n has the word 9000 in front of it, this is our new version of VFD. You can only adjust parameter P5.01 to set the output torque increase.
Deliver exceptional performance
The performance of this VFD is outstanding. My equipment, which used to struggle with the limited power supply, now runs smoothly and efficiently. The variable frequency drive allows me to adjust the output to match the specific needs of my machinery, resulting in energy savings and improved performance.
From:
Abigail
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Date:
05/09/2023
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Which manual should I follow?
I am preparing to install my new VFD. The manual packaged with the GK3000 is somewhat different from the manual available online. Is one of these more current than the other? Which one should I follow?
From:
Javier
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Date:
04/08/2023
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As our VFD products are updated, please refer to the following new instruction manuals and videos.
Manual: https://www.ato.com/Content/doc/ato-gk3000-single-phase-vfd-user-manual.pdf
Video: https://www.youtube.com/watch?v=5w6imIrlYKs&list=PLlo8RulDRnthBFbP4ydheukDSKw2hAfDn&index=25
We are having an issue with the potentiometer not working.
I bought a model GK3000-2S0007. We are having an issue with the potentiometer not working (knob doesn't do anything... we can't adjust any of the levels). We are trying to adjust the frequency. It’s holding at 25 Hz and we need to adjust to 50Hz but can't get it to move. The knob literally is doing nothing.
We are trying to program the unit for single phase in and three phase to the motor. We can send specifics on the motor if that would help us get this programmed. The motor is running hot and the unit is making a grinding noise. We ran an Allen-Bradley Powerflex 4 in the past and it worked like a champ. We have the manual and a fairly experienced program guy, but we can't make the changes the manual is telling him to make.
From:
Dean
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Date:
27/07/2022
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Is the potentiometer you mentioned is the one on the VFD panel or is it external?
Please send us the nameplate label of your motor & VFD for confirmation, and also kindly providing a video for our reference so we can proceed to the next step.
You could also refer to our video, pls see on:https://www.youtube.com/watch?v=s6tTQdAVliM&list=PLlo8RulDRnthBFbP4ydheukDSKw2hAfDn&index=17
Some questions about VFD wiring.
I'm currently trying to wire a VFD, with 120v 1-phase input and 230v 3-phase output, to connect to an AC 230v 3-phase motor. I received the VFD and it had some wires already connected; a green wire labeled "N", and a red wire labeled "L".
I'm very new to electrical wiring so I'm a bit confused on a few things. Typically green wires are the ground wires, and the green wire in this case goes inside the VFD itself, so I'm not sure where it's attached to. On the external wiring part, there's a screw labeled "E" which in the manual is the ground. Is this green wire the ground wire, just grounded internally? So I wouldn't need to attach a wire to the external "E" screw to ground it? The VFD also came with 1 red wire, which was attached to the "R" screw. There was then another small red wire that ran from the "R" screw to the "S" screw", then another red wire from "S" to "T". I understand this to be the input power to the VFD, and the U, V, and W screws are the 3-phase 230v output that'' connect to the motor. Most videos I've watched show a red wire and a black wire connected to the R and S screws for 120v 1-phase input. But in the case of the VFD wiring the way it came it's the red wire basically attached to the R, S, and T screws. I just wanted to make sure that there wasn't another wire necessary, and to clarify which of the R, S, and T screws the wires should be attached to for 1-phase 120v input. We planned to plug it into a wall outlet using just a typical 2 prong male connector. Is that how we should plug it in as well?
From:
Brandon
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Date:
27/07/2022
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1. This 120v 1-phase input and 230v 3-phase output is a customized VFD. The input power supply 120V is connected to the L and N terminals. You need to short sub the R, S, and T terminals together. You cannot remove the short wire (red wire) between them.
2. Your three-phase motor is dual voltage 230/460V, you should connect your three-phase motor according to the low voltage connection method (low voltage mode).
Please recommend a suitable VFD to me
We have a job with a 240V AC 1 phase that I need to run a 3ph 15hp pump. Please send your recommendations for a VFD that I can purchase from you for this matter.
From:
Emilie
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Date:
14/11/2021
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If you want to convert 1-phase, 240V to 3-phase, 240V to run 15hp pump, the recommended VFD would be: GK3000-2S0150G, 20hp capacity.
ATO's suggestion for me to buy a VFD
I'm looking for a VFD with single-phase 230 V input and output, about 1/2 HP. What advice do you have, please?
From:
Wacky
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Date:
27/08/2021
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If your 1-phase, 230V motor rated current is less than 5A, then the recommended VFD will be 1hp capacity, of model: GK3000-1S0007.
What is the minimum hertz that a VFD can run?
What is the minimum hertz that a VFD can run?
From:
Oscar
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Date:
27/04/2018
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You can adjust VFD output frequency in the range 0.00~400.00Hz. And for input frequency, it can be 50/60Hz (47-63Hz).
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