Basic Product Information
Principle of Work
V/F Control Transducer
Voltage of Power Supply
Medium Voltage VFD
Link of Transformation
AC-AC Variable-Frequency Drive
Nature of DC Power
Current Variable-Frequency Drive
Function
Constant Torque Universal Type
Packaging & Logistics
Package Size
32.00cm * 25.00cm * 19.00cm
Package Gross Weight
4.000kg
Technical Specification
| Item |
Specification |
| Input |
Rated voltage and frequency |
3-phase: 380V 220V 50/60Hz |
| Allowable fluctuations |
Voltage: +10%,-15%; Frequency: ±5% |
| Control Mode |
V/F Control, PWM Control |
| I/O Interface |
Digital input |
3-channel optocoupler isolated input |
| Analog input |
AVI:0V-10V / ACI:4-20mA |
| Relay output |
1 normally open contact, 5A 30VDC/250VAC |
| Communication |
2-channel: RS485 MODBUS |
| Indicators |
Adapt motor |
Three phase induction asynchronous motor; AC permanent magnet synchronous motor |
| Output frequency |
0.00-600.00Hz |
| Protection |
Fault Protection |
Overvoltage, low voltage, overcurrent, overload, overheating, and phase loss protection |
| Environment |
Temperature |
-10°C to +40°C (Up to +50°C with derating) |
Frequently Asked Questions
What is the input voltage requirement for the LW-270 model?
The LW-270 supports 3-phase input with rated voltages of 380V or 220V at 50/60Hz. It allows for voltage fluctuations of +10% to -15%.
What types of motors are compatible with this variable frequency drive?
This VFD is designed to adapt to three-phase induction asynchronous motors and three-phase AC permanent magnet synchronous motors.
What is the output frequency range of the converter?
The output frequency ranges from 0.00Hz to 600.00Hz, making it suitable for a wide variety of industrial motor and pump applications.
What built-in protection functions does the LW-270 offer?
It includes conventional protections such as overvoltage, low voltage, overcurrent, overload, overheating, and phase loss. It also features specific protections for water systems, including inlet water shortage and outlet overpressure protection.
How can I start or stop the device?
The device supports three modes: operation keyboard control (with memory), external terminal start/stop via X1-COM short circuit, and RS485 communication control via MODBUS protocol.
What are the environmental requirements for installation?
It should be used in areas without direct sunlight, corrosive gases, or oil mist. The ideal temperature range is -10°C to +40°C at altitudes below 1000m.
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Sriram Electricals
