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Product Description

ATO three phase input output VFD, 220V/ 240V/ 380V/ 480V 3 phase to 3 phase VFD variable frequency drive, sensorless vector variable frequency drive, RS485 enabled, strong overload capacity, for pindle motor speed control.
Note:
we are sorry for any inconvenience caused by receiving a VFD with a factory default voltage of 380V instead of the expected 480V. Typically, we ensure that the output voltage is set correctly before shipment, but in rare cases, may not be set.
Not to worry, though. If you encounter this situation, you can easily adjust the output voltage to 480V by setting parameter P0.08 accordingly.
Please be assured that our team of professional technicians is available to assist you with any technical questions or concerns you may have. We are fully committed to resolving any issues you encounter with the product.

Advantages of ATO three phase vfd Inverter
- Output frequency: 0.00~1000Hz, adjustable
- Control mode---V/F control
- with RS485 communication
- Enclosure rating---IP 20
- 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
Package Includes
- 1* Three Phase Variable Frequency Drive
- 1*User Manual
ATO Three Phase Output VFD Converter Specification:
Input voltage | 3 phase 220V/240V //400V/440V / 460V/ 480V AC ±15% (Optional) |
Input frequency | 50Hz/ 60Hz |
Output voltage | 3 phase AC 0~input voltage |
Output frequency | 0.00~1000Hz |
Over load capacity | 150% of rated current for 1 minute, 180% of rated current for 3 seconds |
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 |
Temperature | –10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5% |
Humidity | 5%-95%, without condensation |
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 |
How to Choose the Right VFD?
Except for the input voltage, there are two additional conditions that need to be met:
1. Ensure that the VFD's rated current is higher than your motor's rated current.
2. Make sure the VFD's rated power exceeds your motor's rated power, ideally by at least one level.
If you're unsure about which VFD matches your motor, simply send a photo of your motor's nameplate, and tell us the input power supply, and your requirements. We'll then recommend the right VFD model for your needs.
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