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    1/2 hp (0.4 kW) VFD, Single Phase Input & Output

    5 out of 5 based on 4 reviews | Write a review
    Inexpensive 1/2 hp VFD, 1 phase for single phase AC motor speed controls, 220V - 240V 4 amps, manufacturer direct sale.
    SKU: GK3000-1S0004
    Availability: In stock
    Free Shipping Worldwide
    Delivery date: 2-12 days

    1/2 hp variable frequency drive, 0.4 kW, 1 phase 220V - 240V for single phase AC motor, manufacturer direct sale.


    Basics Model GK3000-1S0004
    Capacity 1/2 hp (0.4 kW)
    Shipping weight 1.2 kg
    Dimension 124.8*78*148.4 mm
    I/O Feature Rated current 4 A
    Input voltage single phase AC 220V±15%
    Input frequency 47~63Hz
    Output voltage 0~rated input voltage
    Output frequency V/f control: 0~500Hz
    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 control
    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.
    Starting torque 1 Hz/150%
    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 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: 7 points about variable frequency drive application environment
    The variable frequency drive may not be normally operated in any cases, so the user is necessary to have more understanding about load, environmental requirements and the VFD itself. There are seven points should be pay attention to:

    1. Because the motor temperature will be high under long-term and low-speed operation, the fan cooling capacity will also reduce, so it must use high reduction ratio VFD or 6 grade motor to let the motor running in higher frequency.
    2. The variable frequency drive installation site must require the standard environment, or it will easily cause failure or shorten the service life. The distance between VFD and driving motor should not be more than 50 meters, for longer distances need to reduce the carrier frequency or increase output reactor option to function properly.
    3. Type of load and VFD selection: Different load of motor has different requirements of VFD.
    4. Fan and pump is the most common load: They have the simplest requirements of the variable frequency drive, as long as the variable frequency drive capacity is equal to the motor capacity (air compressor, deep water pump, sediment pump, and fast changing music fountain need higher capacity).
    5. Crane load: This type of load is characterized by a great impact on the starting, so it requires a margin of the VFD. At the same time, there will be energy feedback when putting down the weight, so it requires brake unit or share bus.
    6. Uneven load: Some load maybe sometimes light and sometimes heavy, this time should be in accordance with the heavy load situation to select the variable frequency drive capacity, such as rolling machinery, crushing machinery, mixer, etc.
    7. High inertia load: Such as centrifuges, punching presses, cement rotary kiln, these kinds of load have high inertia with large oscillation when starting, and the motor may have deceleration energy recovery. So we should use higher capacity VFD to speed up the starting to avoid oscillation. And we can use the brake unit to eliminate the feedback power.

    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 1/2 hp (0.4 kW) VFD, Single Phase Input & Output
    Excellent VFD
    This is my second purchase of the ATO VFD motor controller. Both are installed and performing. Works great and I highly recommend.
    From: Matthias | Date: 18/07/2019
    Was this review helpful? Yes No (0/0)
    Use of 1/2 hp VFD
    Could your 1/2 hp VFDs be supplied in explosion proof panels for offshore working conditions?
    From: Mary | Date: 06/05/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    No, we engaged in VFDs only, don't provide panels. But you can use simple local enclosure/panel if needed.
    Power of one phase variable frequency drive
    Do we have to derate the one phase variable frequency drive?
    From: Bdeko | Date: 13/05/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Just 15-20% will be enough.
    High quality 1/2hp VFD
    Could your 1/2 hp (0.4 kW) VFD, single phase input
    From: Calitri | Date: 27/06/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, of course.
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