INVT-CHF100A-055G-075P-4 Converter

INVT-CHF100A-055G-075P-4 INVT Vector General-Purpose Frequency Converter

Model Interpretation

Model Segment	Description
INVT	Brand Logo of INVT
CHF100A	Series Name: Vector General-Purpose Frequency Converter (enhanced version of the CHF series, integrating the advantages of CHF100 and CHE100)
055G	Suitable for standard motor power of 55kW (G = General Load)
075P	Suitable for heavy-duty motor power of 75kW (P = Heavy Load)
4	Suitable for three-phase 400V-class voltage (380-415V AC)

Core Technical Parameters
Basic Electrical Parameters

Parameter Item	Value	Remarks
Rated Input Voltage	380-415V AC, three-phase, 50/60Hz	Voltage fluctuation range ±15%
Rated Output Power	55kW (standard load) / 75kW (heavy load)	Rated value for continuous operation
Rated Output Current	105A (standard) / 135A (heavy load)	At ambient temperature of 40℃
Output Frequency Range	0.00-600.00Hz	Accuracy ±0.01Hz
Control Mode	Sensorless Vector Control (SVC), V/F Control, Torque Control	Three modes optional

Performance Indicators

Parameter Item	Value	Applicable Conditions
Starting Torque	0.5Hz / 150% rated torque	In sensorless vector control mode
Speed Regulation Accuracy	0.2% rated speed	In SVC mode
Torque Response Time	<20ms	During dynamic load changes
Carrier Frequency	1.0-15.0kHz	Adjustable according to motor noise and heating
Overload Capacity	150% rated current for 1 minute, 180% rated current for 10 seconds	For standard load; 120% rated current for 1 minute for heavy load

Mechanical and Environmental Parameters

Parameter Item	Value	Standard/Remarks
Protection Class	IP20 (main unit)	IEC 60529, must be installed in control cabinet
Cooling Method	Forced Air Cooling	Built-in cooling fan, automatic derating when overheated
Operating Temperature	-10℃~+40℃	For every 1℃ rise above 40℃, rated current decreases by 1%, maximum temperature 50℃
Storage Temperature	-25℃~+65℃	No condensation, no corrosive gas
Mounting Method	Wall-mounted / Cabinet-mounted	Reserved heat dissipation space required (≥100mm top and bottom, ≥50mm left and right)

III. Functional Features

Excellent Control Performance: Adopts DSP control system to realize sensorless vector control, effectively suppressing low-frequency oscillation.
Comprehensive Protection Functions: Equipped with multiple protection functions such as overcurrent, overvoltage, undervoltage, overtemperature, phase loss, overload, ground fault and short circuit.
Rich Application Functions: Built-in PLC simple programming, multi-speed control (up to 16 speeds), PID control, frequency swing control, synchronous control, etc.
Strong Communication Capability: Standard RS485 interface, supporting Modbus RTU protocol, expandable with PROFIBUS-DP, DeviceNet and other fieldbuses.
Flexible Input and Output: 15 digital I/O channels (9DI/6DO by default), 2 analog input channels (0-10V/4-20mA), 2 analog output channels.
Significant Energy-saving Effect: Functions such as Automatic Voltage Regulation (AVR), automatic current limiting, sleep and wake-up, especially suitable for energy-saving transformation of fan and pump loads.
Application Scope
Fans and Pumps: Boiler induced draft fans, central air conditioning fans, cooling tower fans, oilfield water injection pumps, oil transfer pumps, chemical process pumps, etc.
Industrial Machinery: Air compressors, injection molding machines, extruders, printing machines, packaging machines, textile machinery, CNC machine tool spindle control.
Building Materials and Metallurgy: Cement rotary kilns, ball mills, belt conveyors, hoists, auxiliary systems of steel rolling equipment.
Other Fields: Mining machinery, port cranes, pharmaceutical equipment, food processing machinery, sewage treatment equipment.
Selection Suggestions
Load Type Matching: Select type G for standard loads (fans, pumps), and type P for heavy loads (compressors, extruders).
Motor Power Adaptation: The rated power of the frequency converter should be ≥ the rated power of the motor; it is recommended to select one level higher for heavy-duty applications.
Environmental Condition Consideration: Derating use or additional protective measures are required for high-temperature, high-altitude and dusty occasions.
Special Function Requirements: Select models with corresponding interfaces for communication networking; select vector control mode for fast response.
Accessory Selection: Optional input and output reactors, filters, braking units, operation panels (universal for CHV100 series).
Troubleshooting

Fault Code	Fault Cause	Troubleshooting Method
OV	DC bus overvoltage	Check grid voltage, extend deceleration time, install braking unit.
UV	DC bus undervoltage	Check grid voltage, shorten acceleration time, check input phase loss.
OC	Output overcurrent	Check insulation of motor and cables, reduce load, extend acceleration time.
OH	Frequency converter overtemperature	Check cooling fan, clean air duct, reduce ambient temperature.
PH	Input phase loss	Check input power supply, tighten wiring terminals, replace damaged fuses.
GF	Ground fault	Check insulation of motor and cables, eliminate ground fault points.

VII. Installation and Wiring Key Points

Before installation, confirm that the power supply voltage matches the rated voltage of the frequency converter, disconnect the power supply and verify no voltage.
Adopt 35mm DIN rail mounting or wall-mounted mounting to ensure sufficient heat dissipation space.
Main circuit wiring: R/L1, S/L2, T/L3 are inputs; U, V, W are outputs; PE is the grounding terminal.
Control circuit wiring: Shielded wires should be used for analog input, with the shielding layer grounded at one end; digital input should avoid routing in the same slot as high-voltage electricity.
Check parameter settings before power-on, especially basic parameters such as motor rated power, rated current and rated frequency.