China 55kW 75HP VFD Variable Frequency Drive with 220V/380V Input, 150% Overload Capacity, and 1:1000 Speed Range for sale

55kW 75HP VFD Variable Frequency Drive with 220V/380V Input, 150% Overload Capacity, and 1:1000 Speed Range

Price Negotiable

Price: Please contact quotation

MOQ: 1

Delivery Time: depends on quantities

Brand: VEIKONG

Product Description

Performance Features

Advanced motor control algorithm for precise operation
High performance open loop vector control
Optimal V/F mode for enhanced efficiency
Excellent ramp slope control for smooth acceleration
Fast auto-tune capability (less than 1 minute)
Overload capacity: 150% rated output current for 1 minute
Low frequency torque: 100% rated torque at 0.5Hz, 150% rated torque at 1Hz

Technical Specifications

Input Parameters

Parameter	Specification
Input Voltage	1-phase/3-phase 220V: 200V-240V 3-phase 380V-480V: 380V-480V
Allowed Voltage Fluctuation	-15% to +10%
Input Frequency	50Hz / 60Hz, fluctuation less than 5%

Output Parameters

Parameter	Specification
Output Voltage	3-phase: 0 to input voltage
Overload Capacity	General purpose: 150% rated current for 60s Light load: 120% rated current for 60s

Control Parameters

Parameter	V/f Control	SVC	VC
Speed Range	1:100	1:200	1:1000
Speed Control Accuracy	±0.5%	±0.2%	±0.02%
Frequency Range	0.00-600.00Hz	0.00-200.00Hz	0.00-400.00Hz
Startup Torque	150%/0.5Hz	180%/0.25Hz	200%/0Hz

Product Image

55kw 75hp VFD Variable Frequency Drive with digital display and control panel

Fault Diagnosis & Troubleshooting

Fault Name	Code	Possible Causes	Solutions
Inverter Unit Protection	Er. SC	Motor insulation aging, cable damage, output transistor breakdown	Check motor insulation, inspect cables, install reactor or output filter
Over Current During Acceleration	Er.OC1	Output circuit short, acceleration time too short, voltage low	Eliminate external faults, increase acceleration time, adjust voltage
Over Current During Deceleration	Er.OC2	Deceleration time too short, voltage low, braking unit not installed	Increase deceleration time, adjust voltage, install braking unit
Over Current at Constant Speed	Er.OC3	Sudden load added, voltage too low, motor auto-tuning not performed	Remove added load, adjust voltage, perform motor auto-tuning
Overvoltage During Acceleration	Er.OU1	Input voltage too high, acceleration time too short	Reduce power supply voltage, increase acceleration time
Low Voltage	Er.Lv1	Instantaneous power failure, input voltage out of range	Check input power supply, adjust voltage to normal range
Frequency Inverter Overload	Er. oL	Load too large, acceleration time too short	Reduce load, increase acceleration/deceleration time
Motor Overload	Er.oL1	Motor blocked, large inertia load, improper parameter settings	Check motor and mechanical conditions, adjust parameter settings

Compatibility & Applications

This 55kW VFD is designed to replace famous brand variable frequency drives in general industrial applications, providing reliable motor control with multiple operation modes and comprehensive protection features.