Description

30 hp (22 kW) high performance variable frequency drive, three phase 208V, 440V, 460V for selection, manufacturer direct sale.

Specification:

Basics	Model	GK3000-4T0220G/ GK3000-2T0220G
Capacity	30 hp (22 kW)
Shipping weight	8 kg
Dimension	330200200 mm for GK3000-4T0220G/ 555310260 for GK3000-2T0220G
I/O Feature	Rated current	45A at 380V ~ 480V, 91A at 220V ~ 240V
Input voltage	3 phase 208V /440V /460V AC ±15% (Optional)
Input frequency	50Hz/ 60Hz
Output voltage	3 phase AC 0~input voltage
Output frequency	0Hz~1000Hz
Over load capacity	150% of rated current for 1 minute, 180% of rated current for 3 seconds
Control Feature	Control mode	V/F control; Sensorless vector control;
Communication	RS485
Speed regulation	1:100
Start torque	150% of rating torque at 1 Hz
Speed control accuracy	≤±0.5% of rating synchronous speed
Frequency precision	Digital setting: max frequency x± 0.01%; Analog setting: max frequency x± 0.2%
Frequency resolution	Analog setting: 0.1% of max frequency; Digital setting: 0.01Hz
Torque boost	Automatic torque boost, manual torque boost 0.1%~30.0%
Interior PID controller	Be convenient to make closed-loop system
Automatic energy save running	Optimize V/F curve automatically based on the load to realize power save running
Automatic voltage regulation (AVR)	Can keep constant output voltage when power source voltage varies.
Automatic current limiting	Limit running current automatically to avoid frequent over-current which will cause trip
Environment	Enclosure rating	IP 20
Temperature	–10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the debate will be 5%
Humidity	5%-95%, without condensation
Altitude	≤1000m; VFD will be derated if above 1000m
Impingement and oscillation	Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
Store environment	–20℃~ +60℃; no dust, no corrosive gas, no direct sunlight

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

Tips: Variable frequency drive overheated
Overheating is also a relatively common failure of VFD, which is mainly caused by high environment temperature, fan locked-rotor, poor temperature sensor performance or motor overheating.
For example, a 30 hp VFD displays “OH” after running for about half an hour.
Analysis and maintenance: Because the failure happens after a period of running, so the temperature sensor is not likely to be broken. Maybe VFD temperature is truly high. After power on, find the fan is slowly rotating, and there is a lot of cotton inside the shield (VFD is used in the textile industry). After cleaning the fan, VFD runs well, and doesn’t display the failure for hours of running.