Variable Frequency Drive (VFD) and Dynamic Braking Units for Industrial Applications

• Application: Inverter220V/380V/460V/660V
• Function: Brake Unit
• Brand: V&T
• Model NO.: VTBU
• Power Voltage: 3AC 220V,380V,460V,660V±10%
• Braking Device: Dynamic Voltage Tracking
• Response Time: <1s
• Hysteresis Voltage: <10V
• Class of Protection: IP00
• Transport Package: Wood
• Specification: Brake Unit
• Trademark: V&T
• Origin: China

Product Description

Product Profile

Brake Unit uses advanced power technology and high-performance MCUcontroller,and with a New generation of IFBTpower

devices combined with research and production of high performance brake products.The product releases the electric energy

generated by the motor during the braking process through the power resistance(braking resistance)to generate enough braking

torque to keep the frequency converter and other equipment in normal operation.

Product Features

Adapts the voltage 220V,380V,460V,660V all brand frequency converter, the single machine power reaches 400KW;
Digital control, complete current sharing from parallel within 8 units;

High power with LED keyboard control, more convenient operation;

Three specifications of the same power are available, with a wide range of product lines to meet customers with different cost-

effectiveness requirements;
Protection function, strong anti-interference function, and high reliability.

Brake Unit Model

Rated current: refers to the maximum average current during the operation of the braking unit;

Peak current: refers to the maximum current allowed to pass through the braking unit during operation, and the maximum duration of this

current should not exceed 20 seconds ;
Please refer to the VTBU manual for detailed operating voltage

Technical parameters

Power supply	Power Voltage	3AC 220V,380V460V660V±10%
	Power network frequengy	50Hz±5Hz
Contorl system	Braking device	Dynamic voltage tracking
	Response time	≤1ms
	Hysteresis voltage	≤10V
	Current protection	over 85ºC-RRB-protection
	Fault output	Relay contact output:capacity AC250V/3A
Display	Status display	Power supply voltage,       operating state,fault state (high-end H-type)
	Operation display	Operation Indicator Lightis always              bright or flashing (high-end H-type)
	Parameter setting	Action voltage setting           master-slavesetting (high-end H-type)
Environmental condition	Field-of-Use	Indoor,free from direct sunlight,dust,corrosive gases,flammable gases,oil mist, water vapor,dnpping water,or salt.
	Ambient temperature	-10ºC-+45ºC,excellent ventilation
	Ambient humidity	<90%RH,No condensation
	elevation above sea level	<1000m(over    1000m,1%decrease    per    100m)
	Vibration	<0.5g
	Storage temperature	-20ºC-+60ºC
	Cooling method	Forced air cooling
	Class of protection	IP00

 

Applications

Widely used in CNC machine tools,elevators,centrifuges,cranes,mine hoist and other machinery of variable frequency speed field

applicable to a variety of motor energy braking occasions.