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7.5 hp (5.5 kW) VFD, Single Phase Input & Output

4.9 out of 5 based on 16 reviews | Write a review
$996.85
Favorable price 7.5 hp VFD, 1 phase for single phase AC induction motor, high variable speed performance, 220V - 240V 32 amps, manufacturer direct sale.
SKU: GK3000-1S0055
Availability: In stock
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Delivery date: 2-3 days

7.5 hp variable frequency drive, 5.5 kW, 1 phase 220V - 240V for single phase AC motor, manufacturer direct sale.

Specification:

Basics Model GK3000-1S0055
Capacity 7.5 hp (5.5 kW)
Shipping weight 9 kg
Dimension 330*200*200 mm
I/O Feature Rated current 32 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
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:

  1. 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.
  2. ATO VFD Cannot be used as a power source, it Can only be directly connected to an induction motor to control the motor speed.
  3. Single phase VFD Cannot control the motor in reverse, if you want to reverse the motor, refer to the motor nameplate instructions for operation.

Tips: Variable frequency drive functions in air conditioning

  1. In air conditioning, VFD can make the compressor motor speed continuously adjustable, and the speed is based on indoor air conditioning load proportional change. When the room needs rapid cooling (or rapid warming), air conditioning load will increase, the compressor speed up, and the cooling (or heating) capacity will proportion increases. And then after reaches the set temperature, the system will operate in low-speed to maintain room temperature.
  2. VFD air conditioner uses electronic expansion valve to control the flow, and its outdoor micro processor controls the valve opening degree based on the expansion valve inlet and outlet, the compressor in the air pipe at the temperature sensor to collect information, which can change the flow of refrigerant at any time. The speed of the compressor corresponds to the opening degree of the expansion valve, so that the capacity of the evaporator can be maximized. At the same time, because of using electronic expansion valve as a throttle element, the device will not stop when defrost. It uses compressor exhaust heat to the indoor, and then sends the remaining heat to the outside to melt the frost on heat exchanger fin.
  3. VFD air conditioner will gradually replace the traditional fixed speed air conditioner, and becoming the main stream of air conditioning control technology. The frequency conversion technology has been changed from AC type to DC type, and the control technology has been developed from PWM (Pulse Width Modulation) to PAM (Pulse Amplitude Modulation). The speed of the compressor with PWM control is limited by the upper limit speed, generally not more than 7,000/min, and the compression speed of PAM control mode can be increased for about 1.5 times, which greatly improves the refrigeration capacity at refrigeration and low temperature.
Existing reviews of 7.5 hp (5.5 kW) VFD, Single Phase Input & Output
Factory reset procedure
What is the factory reset procedure for a GK3000 VFD?
From: Glorie | Date: 15/10/2024
Was this review helpful? Yes No (0/0)
ATO Responded
VFD factory reset: If your VFD nameplate S/N serial number has 9000, please set Pd.01=1. If the nameplate does not have 9000, please set parameter P3.01=10.
Can I adjust the frequency it operates at while running?
Sorry for the confusion. My frequency range is 40 to 60 Hz. When I power up the VFD, the display flashes 40Hz. Can I adjust the frequency it operates at while running?
From: Ivy01 | Date: 09/10/2023
Was this review helpful? Yes No (0/0)
ATO Responded
Yes, when the VFD is running, you can adjust the frequency through the operation panel potentiometer, set P0.01=0 (the frequency comes from the keyboard analog potentiometer). Let us know if you have any other questions.
Can I use a phased sine wave filter (partially) in a single phase output?
We purchased three 7.5 hp (5.5 kW) VFD's from your company and we would like to filter their outputs as we have noticed that they stress the compressor start capacitors, one of which has failed. Is it possible to use a phase sine wave filter (partially) in the single phase output? Or do you know of any manufacturer that offers this solution?
From: lily | Date: 04/09/2023
Was this review helpful? Yes No (0/0)
ATO Responded
Unfortunately, three-phase filters cannot be used as single-phase filters. We recommend that you replace the compressor's start capacitor with a model with higher withstanding voltage and better performance.
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