7.5 Hp (5.5 KW) VFD, Single Phase Input & Output

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Model: GK3000-1S0055
Weight: 1.00
SKU: GK3000-1S0055

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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	330200200 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.
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.
RDDLZ VFD Cannot be used as a power source, it Can only be directly connected to an induction motor to control the motor speed.
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

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.
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.
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.

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