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    10 hp (7.5 kW) VFD, Single Phase Input & Output

    5 out of 5 based on 9 reviews | Write a review
    High performance and low cost 10 hp VFD (inverter), 1 phase 220V - 240V output for single phase asynchronous motor, brand new direct sale by manufacturer.
    SKU: GK3000-1S0075
    Availability: In stock
    30-day Returns
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    Delivery date: 2-12 days

    10hp 7.5kW single phase output variable frequency drive, 1 phase 220V - 240V input, 1 phase 0 - 220V output, specialized designed for 1 phase induction motor.


    Basics Model GK3000-1S0075
    Capacity 10 hp (7.5 kW)
    Shipping weight 8 kg
    Dimension 330*200*200 mm
    I/O Feature Rated current 45 A
    Input voltage single phase AC 220V±15%
    Input frequency 47~63Hz
    Output voltage 0~rated input voltage
    Output frequency 0~1000Hz
    Over load capacity 150% of rated current for 60s, 180% of rated current for 10s, 200% of rated current for 3s
    Control Features Control mode V/F, Sensorless vector control (SVC), Speed sensor vector control (FVC)
    Operation command mode Keypad control, Terminal control, Serial communication control
    Frequency setting mode Digital setting, analog setting, pulse frequency setting, serial communication setting, multi-step speed setting & simple PLC, PID setting, etc. These frequency settings can be combined & switched in various modes.
    Start frequency 0.40Hz~20.00Hz
    Speed adjustment range 1:50
    Carrier frequency 1.0-16.0kHz, automatically adjusted according to temperature and load characteristics
    Frequency accuracy Digital setting: 0.01Hz
    Analog setting: Maximum frequency * 0.05%
    Torque boost Automatically torque boost; manually torque boost: 0.1%~30.0%
    V/f curve Three types: linear, multiple point and square type (1.2 power, 1.4 power, 1.6 power, 1.8 power, square)
    Acceleration/deceleration mode Straight line/S curve; four kinds of acceleration/deceleration time, range: 0.1s~3600.0s
    DC braking DC braking when starting and stopping
    DC braking frequency: 0.0Hz~maximum frequency, braking time: 0.0s~100.0s
    Jog operation Jog operation frequency: 0.0Hz~maximum frequency
    Jog acceleration/deceleration time: 0.1s~3600.0s
    Simple PLC & multi-step speed operation It can realize a maximum of 16 segments speed running via the built-in PLC or control terminal.
    Built-in PID Built-in PID control to easily realize the close loop control of the process parameters (such as pressure, temperature, flow, etc.)
    Automatic voltage regulation Keep output voltage constant automatically when input voltage fluctuating
    Control Function Common DC bus Common DC bus for several VFDs, energy balanced automatically
    Torque control Torque control without PG
    Torque limit "Rooter" characteristics, limit the torque automatically and prevent frequent over-current tripping during the running process
    Wobble frequency control Multiple triangular-wave frequency control, special for textile
    Timing/length/counting control Timing/length/counting control function
    Over-voltage & over-current stall control Limit current & voltage automatically during the running process, prevent frequent over-current & over-voltage tripping
    Fault protection function Up to 30 fault protections including over-current, over-voltage, under-voltage, overheating, default phase, overload, shortcut, etc., can record the detailed running status during failure & has fault automatic reset function
    Input/output terminals Input terminals Programmable DI: 7 on-off inputs, 1 high-speed pulse input 2 programmable AI:
    AI1: 0~10V or 0/4~20mA
    A12: 0~10V or 0/4~20mA
    Output terminals 1 programmable open collector output: 1 analog output (open collector output or high-speed pulse output)
    2 relay output
    2 analog output: 0/4~20mA or 0~10V
    Communication terminals Offer RS485 communication interface, support MODBUS-RTU communication protocol
    Human machine interface LED display Display frequency setting, output frequency, output voltage, output current, etc.
    Multifunction key QUICK/JOG key, can be used as multifunction key
    Environment Ambient temperature -10℃~40℃, derated 4% when the temperature rise by every 1℃ (40℃~50℃).
    Humidity 90%RH or less (non-condensing)
    Altitude ≤1000M: Output rated power, >1000M: Output derated
    Storage temperature -20℃~60℃

    Note: The single phase motor should Not be adjusted to run based on a lower frequency than 80% of its rated frequency for along time, otherwise the motor may fail.
    Tips: Commissioning of single phase VFD with PC
    After the basic settings of VFD, it can be connected with PC for the whole system commissioning. Connect the control lines of the VFD with the PC, and change the VFD operation mode to terminal control. According to the requirements of the PC system, set the VFD receive frequency signal range to 0~5V or 0~10V, and set the sampling response speed of analog frequency signal. If additional monitor is required, select the analog output monitoring item and adjust the range of this monitoring item terminal.

    Running a single phase motor with VFD

    In this video, ATO will show you details about running a single phase motor on a VFD. It's important to note that there are two wiring methods for single phase motor connecting to ATO single phase VFD: wiring of removing motor capacitor & wiring of keeping motor capacitor. At first, you should choose the wiring method you needed, and then set basic parameters step by step.

    Existing reviews of 10 hp (7.5 kW) VFD, Single Phase Input & Output
    How to read the Inverter Fault when OC1 is configured to output it?
    I got the e-stop button wiring figured out. I tried to do both a terminal stop command and a VFD Run Prohibit, but the spindle would just coast to a stop. I then disconnected the VFD Run Prohibit and it did what I needed. As a bonus, since the estop button is latching, stop command is continuously being applied, thus preventing the spindle from being restarted until the estop is deactivated. The only thing I haven't figured out is how to read the inverter fault when OC1 is configured to output it. There does not seem like enough voltage across the terminals to be able to activate a LED nor to energize a relay. How do I read the inverter's faults?
    From: Colleen | Date: 05/04/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    The fault output of VFD is generally output through the TA/TB/TC terminal of the relay, and the corresponding parameter is P4.12=15 (VFD fault). TA-TB is a normally open contact, and TA-TC is a normally closed contact, similar to a switch.
    About VFD setup
    I have a VFD, and I need to configure it to respond appropriately to an E-Stop activation. From reading the manual, I believe I need to set two input terminals, one to option 11 (External Stop Command) and another to option 13 (Inverter Running Prohibited). Are these the two correct settings I need to configure or do I not need one of them or do I need to configure additional/other settings? I have successfully activated the external stop command, but do not know how to activate the "Inverter Running Prohibited" option. How do I activate this setting? Do I close the connection from this input terminal to COM (or GND) or do I need to connect it to an external positive voltage source (5V, 12V, or 24V)? To activate this setting, is it a momentary connection (like it is to activate the external stop command) or does it require a continuous connection for the duration the VFD needs to be prohibited from running. To exit this state (to be able to run the VFD again), does the VFD need to be reset, power cycled, or will simply opening the connection be sufficient?
    From: Paulo | Date: 04/04/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    For the start and stop signals of VFD, please refer to the following instructions:
    1.VFD wiring:
    Start switch: the start switch (Normally open contact NO)is connected to terminal FWD and terminal COM
    Stop switch: The stop switch (Normally open contact NO) connect the stop switch to terminal COM and terminal X1.
    2.Set as following:
    P0.03=1 (run command from terminal)
    P4.08=0 (2-wire control mode 1)
    P4.00=13(Define terminal X1 as stop signal)
    When you press Emergency stop, X1 and COM will be connected, and VFD will stop.
    And you can also refer to the video for VFD terminal control:
    The VFD does not drive the motor.
    I received this shipment last week in good condition. During installation yesterday, I can only get one of them to output a voltage and it works fine. The other one appears to work fine, but it does not output a voltage/current and there is no error or fault even though the display shows it ramping up and down - the current is always 0.00. All settings are exactly the same on both units. I thought it might be one of the filters that was bad, but even when the filter is bypassed, the VFD does not drive the motor.
    From: Vernon | Date: 27/07/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    To solve your problem,
    1. Please provide us with the nameplate of the VFD for confirmation.
    2. Please provide us a video showing the problem you describe. The video should show that the VFD is already running at 60HZ, but has no output voltage.
    3. You can set the VFD parameter to P3.01=10 (restore the factory parameters), running the VFD with no load, and when the frequency runs to 50/60HZ, using a multimeter to measure whether the VFD output terminals U-V, V-W have output voltage.
    Single phase motor with no chance to re wire it
    Can i connect to a single phase motor of 7.5 HP that i can't remove the capacitors this model? Also what size of wire can  the sockets support, cause i have a 4 AWG on the output for the motor.
    From: Santiago | Date: 25/01/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    1. It can be connected to a 7.5HP single-phase motor, but the rated current of your motor should be less than 49A.
    2. It is generally not recommended to remove the capacitor.
    3. Sorry, I don't quite understand which socket you mean by "socket", you can send your questions to this email, our technicians will answer your questions.
    Do you offer external potentiometer for external speed controls for your 1 phase drive?
    Do you offer external potentiometer for external speed controls for your 1 phase drive?
    From: Sonido | Date: 06/01/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Our VFD has a potentiometer beside its operation panel, and also you can install an external one if needed.
    I have a question about VFD for you
    Can this single phase VFD be applied to any type of 1 phase motor? I have a 240VAC supply fan for an indoor air handling unit and would like to control the speed to values other than the 3 speed settings that are available from the motor taps.
    From: Laurilee | Date: 25/08/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    As long as your motor is 1-phase, induction motor with running or/and starting capacitors, 220/230/240V, then you can use our 1-phase drives. You can send us your motor name plate "tag label" picture or inform us about its rated voltage, and current.
    Use of single phase VFD
    Can a single phase VFD work with a shaded pole AC motor?
    From: Kamryn | Date: 07/05/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, It works for single phase motor and split phase as well.
    Benefits of removing the motor capacitor
    What is the advantage of removing motor capacitors when installing your 1 phase variable frequency drive?
    From: Sharon | Date: 29/03/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    It is okay to remove the capcitors or not, the drive will work effectively. Just removing capacitor may provide little bit stability.
    Single phase output VFD operation
    I am interested in single phase output VFD. Can I run multiple fan motors on one drive?
    From: Mcclellan | Date: 25/03/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, you can. But run all at the same instant from the drive.
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