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3 hp VFD, Single Phase to Three Phase VFD

4.9 out of 5 based on 11 reviews | Write a review
$238.14
Low price 3hp VFD, convert 220V/230V/240V 1 phase to 3 phase, 9.6 amps, RS485 enabled, shipping weight 3kg, manufacturer direct sale.
SKU: GK3000-2S0022
Availability: In stock
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Delivery date: 2-3 days

3hp variable frequency drive, 2.2kW, single phase 220V-240V to three phase VFD, 10 amps.

Specification:

Basics Model GK3000-2S0022
Capacity 3 hp (2.2 kW)
Shipping weight 3 kg
Dimension 190*104*150 mm
I/O Feature Rated current 9.6 A
Input voltage 1 phase 220~240V AC
Input frequency 50Hz/ 60Hz
Output voltage 3 phase AC 0~input voltage
Output frequency 0Hz~1000Hz
Over load capacity 150% of rated current for 1 minute, 180% of rated current for 3 seconds
Control Feature Control mode V/F, Sensorless vector control (SVC), Speed sensor vector control (FVC)
Communication RS485
Speed regulation 1:100
Start torque 150% of rating torque at 1 Hz
Speed control accuracy ≤±0.5% of rating synchronous speed
Frequency precision Digital setting: max frequency x± 0.01%;
Analog setting: max frequency x± 0.2%
Frequency resolution Analog setting: 0.1% of max frequency;
Digital setting: 0.01Hz
Torque boost Automatic torque boost, manual torque boost 0.1%~30.0%
Interior PID controller Be convenient to make closed-loop system
Automatic energy save running Optimize V/F curve automatically based on the load to realize power save running
Automatic voltage regulation (AVR) Can keep constant output voltage when power source voltage varies.
Automatic current limiting Limit running current automatically to avoid frequent over-current which will cause trip
Environment Enclosure rating IP 20
Temperature –10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
Humidity 5%-95%, without condensation
Altitude ≤1000m; VFD will be derated if above 1000m
Impingement and oscillation Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
Store environment –20℃~ +60℃; no dust, no corrosive gas, no direct sunlight

Note: ATO VFD Cannot be used as a power source, it Can only be directly connected to an induction motor to control the motor speed.

Details

3 hp Single Phase to Three Phase VFD Details

Tips: Variable frequency drive overcurrent
Overcurrent is the most frequent alarm phenomenon of VFD.

A. Phenomenon

  1. When restarting, VFD trips once speed up. This is a very serious phenomenon of overcurrent. The main reasons are: Load short circuit, mechanical parts stuck, inverter module damaged, and smaller motor torque and so on.
  2. Tripping after power on. This phenomenon cannot be reset. The main reasons are: Module broken, bad driving circuit, and bad current detection circuit.
  3. The tripping is not happening when restart but when accelerating, the main reasons are: Acceleration time setting is too short, current upper limit setting is too small, and the torque compensation (V/F) setting is too high.

B. Maintenance examples

  1. The VFD displays "OC" once starting.
    Open the cover and don't find any signs of burn out. Online measure IGBT finds no problems. In order to further determine the problem, disassemble the IGBT and measure the seven high-power transistors, the opening and closing are good. When measuring the upper half of the bridge drive circuit, find a circuit is obviously different with the other two. After careful inspection, find an optocoupler A3120 output pin and negative power supply short circuit. Replace it and test again, three circuits are the same. Finally install IGBT and everything running well.
  2. A 3 hp VFD displays "OC" and cannot be reset.
    First check the inverter module but don't find the problem. Second, check the drive circuit and find no abnormal phenomenon. It is estimated that the problem is not here, and may be in the part of over-current signal processing. Remove the circuit sensor and then power on showing everything is normal, so the sensor has been broken. After replaced with a new sensor, the on-load experiment shows everything normal.
Existing reviews of 3 hp VFD, Single Phase to Three Phase VFD
About specifications
I wanted to confirm a couple of specifications that are unclear. First, what is the maximum output frequency? The online documentation says 1000Hz but the nameplate only says 0-500Hz. We will be using this in a high-speed milling application so we need the high frequency operation. Second, the user manual says that an internal braking resistor is included for this size of the VFD. However, the wiring terminal includes connections for an external braking resistor. Could you please confirm that there is one internally? What is the resistance and power dissipation capacity of the resistor?
From: Shigar | Date: 04/12/2024
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ATO Responded
1. Yes, our VFD can reach a maximum output frequency of 1000HZ, no problem.
To set 400Hz, set as follows:
Before setting the motor frequency P8.04 = 400Hz, it is necessary for you to set the frequency resolution P0.21 = 1 (0.1Hz) and then reset the upper and lower frequency limits and the motor frequency parameter.
Following is the parameter list of modifying the output frequency from 320HZ to 400Hz:
P0.21=1
P0.05=400.0Hz
P0.06=400.0Hz
P0.07=0.0Hz
P8.04=400.0Hz
2. The VFD has a built-in brake unit, and the brake resistor can only be connected externally. This unit GK3000-2S0022G has an external brake resistor of 75Ω/500W.
How to program in this VFD?
I will be going to a job site in the next couple of days in which I need to program approximately 20 of the GK3000 VFDs. The VFDs are connected to exhaust fans. The fans will run continuously at 25Hz and then we want them to ramp up to 60 Hz when we send a signal from our relay. We have a normally open dry contact.  When the relay closes we want the VFD to ramp up the fans to 60Hz. Can you send me step-by-step instructions on how to program this in the GK3000.  I have the manual, but I am not finding the instructions to be very clear (for me…I am not normally the one who programs VFDs so a lot of the information is new to me).
From: Drosy | Date: 08/08/2023
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ATO Responded
If the VFD you purchased is not 120VAC input, you can refer to the following parameter settings:
If you would like the VFD to run at 2 speeds, you only need to configure an external contact x1 to achieve it. The parameter settings are as follows:
P0.01=2 (frequency comes from digital given)
P0.02= 25HZ (0 segment speed, when X1 and COM are disconnected)
P0.03=1 (terminal control mode)
P4.00=1
P3.26=60HZ (1 stage speed, when X1 and COM are closed)
I don't know how to do?
I did test the hoist with no load but it doesn't work, I bought the VFD that you guys recommended to me. I just didn't know that it couldn't drive the hoist because of the contactors and components. I thought that as long as the hoist saw 240V 3 phase it would work.
From: Sameh | Date: 22/03/2023
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ATO Responded
You can follow our suggestions below and try again.
1. First, please make sure your hoist has a brake. If it has a brake, you need to trigger the brake signal and then release the brake before you can run the VFD, otherwise, the VFD will malfunction.
2. As we mentioned below, our VFD is directly connected to the motor. The forward and reverse contactor your hoist was using before needs to be removed. But if you want to continue to use the previous forward and reverse contactor, using an external push button switch, you can change one control: Please use the contacts of the forward contactor to control the forward signal of the VFD - FWD-COM; use the contacts of the reverse contactor to control the reverse signal of the VFD - -REV-COM. Please refer to the demonstration video about the VFD forward and reverse control motor at: https://www.youtube.com/watch?v=nBUm4i9wnzY&list=PLlo8RulDRnthBFbP4ydheukDSKw2hAfDn&index=12
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