10 hp (7.5 kW) Single Phase Output VFD

10 hp (7.5 kW) VFD for sale at low cost, 45 amps, single phase 220V - 240V output for 1 phase induction motor speed control.

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$1,591.50

High performance and affordable price 10hp 7.5kW variable frequency drive, single phase output for 1 phase asynchronous motor.

GoHz single phase output VFDs work for both L-N-G motors and split phase (L1-L2, +N, G) motors.

Specification:

Basics	Model	GK3000-1S0075
	Capacity	10 hp (7.5 kW)
	Shipping weight	8 kg
	Dimension	330200200 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	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.
Human machine interface	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.

Single phase induction motor has specific wiring requirements in connecting with GoHz single phase VFD, to enable your single phase motor running properly, please follow below instructions step by step:

Wiring instruction of removing motor capacitor
Remove capacitor of the single phase motor, connect the common terminal Z2/U2 (single phase motor has two windings) to the VFD's V phase, connect the other two windings U1/V1 & Z1 to the U & W phase of the VFD output terminals.
Power on the VFD, set P9-13=0, run the VFD and observe the current. If the current is too high, stop the VFD, set P0-15=10, P1-02=160, and run again. If the current still too high, stop the VFD and switch the motor connection of U & W phase.
GoHz VFD wiring for single phase induction motor

Wiring instruction of keeping motor capacitor
Connect single phase motor input lines (L, N) to the VFD's (V, U).
Power on the VFD, set P9-13=0, run the VFD and observe the current. If the current is too high, stop the VFD, set P0-15=10, P1-02=160, and run again. If the current still too high, stop the VFD and switch the VFD's U phase to W phase.
GoHz VFD wiring for single phase motor without disassembling capacitors

Download GoHz single phase motor wiring instructions (pdf).

Tips: Advantages of Single Phase VFD

Not only do variable frequency drive provide adjustable speed for accurate and precise control applications, but they also offer additional benefits in process control and energy savings.

Energy saving
More than 65% of electricity is consumed by industrial electric motors. Amplitude and frequency control techniques use less power to change the speed when the motor requires variable speed. So a lot of energy is being saved by these VFDs.

Closed-loop control
Even under changing load conditions and input disturbances such as voltage fluctuations, the VFD can accurately locate the motor speed by continuously comparing the reference speed.

Limit the starting current
Induction motors draw 6 to 8 times the nominal current when starting. Compared with the traditional starter, the VFD has a lower output frequency when starting, and the effect is better. Due to the lower frequency, the motor draws less current and when starting and running, the current will not exceed the rated value.
Smooth operation
provides smooth operation when starting and stopping, and also reduces thermal and mechanical stress on the motor and belt drive.
High power factor
Built-in power factor correction circuitry in the VFD DC bus reduces the need for additional power factor correction devices.

Download PDF, DOC...

PDF:	GK3000 VFD Quick Setup User Manual
PDF:	GK3000 Single Phase VFD User Manual

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Simple to install

Simple to install, hooked up and ready to go, the 7.5kW power output is very stable and drives the equipment without any pressure.

By Benedict on 25/04, 2025