Specifications

Famous BEDFORD years of AC variable frequency drive

B503 Series variable frequency drive

Inverter Product Brief

B503 series variable frequency drive adopts DSP control system which supplies Sensorless Vector Control (SVC) and V/F control. Comparing with V/F control ,the performance of DSP has greater superiority, which consists of inbuilt SVC and V/F control accuracy, it is widely applied to high speed control accuracy, rapid torque response and high performance at low frequency.

Main Control Function for variable frequency drive

Control Mode :Sensorless Vector Control (SVC),V/F Control

Overload Capacity :60s with 150% of rated current , 10s with 180% of rated current.

Starting Torque : 150% of rated torque at 0.5Hz (SVC).

Speed Adjusting Range : 1:100(SVC)

Speed Accuracy :±0.5% of maximum speed (SVC)

Carrier Frequency :0.5kHz~15.0kHz  variable frequency drive  

Reference Frequency Source: keypad ,analog input , serial communication,

multi-step speed ,PID and so on.The combination of multi-modes and 

switching between different modes can be realized. variable frequency inverter for compressor

Torque Control Function :Provide multiple torque setting source.

PID Control Function. 

Multi-Step Speed Control Function :8 steps speed can be set.

Traverse Control Function.

Non-Stop when power is instantaneously cut off.

Speed trace Function :Start the running motor smothly..5.

Key :User defined shortcut key can be realized.

AVR: Can output constant voltage automatically when input voltage is fluctuating.

Offer RS485 serial communication interface.Standard ModBus. variable frequency drive

Over-troque Detection Function. 

This inverter applications: 

B503 series variable frequency inverter  (Output frequency range is 0~600Hz):

Textile machinery ,plastic machinery ,ceramic machinery, electric machinery, numerical control machine, foodstuff processing machinery, Light industry, Pharmacy machinery, Fan, Water pump, Air compressor, etc.

Power Range: 

Single phase type inverter 220V 1HP~3HP(0.75KW~2.2KW)  

Three phase  type inverter 220V 1HP~75HP(0.75KW~55KW)  

Three phase typr inverter 380V 1HP~860HP(0.75KW~630KW)

 Selection guide for variable frequency drive

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Why Always BEDFORD???

1.Professional--21 years Professional variable frequency drive  Export, 8 years manufacturer Experience, Patent products

 2.Reliable--6 years Alibaba Gold Supplier

 3.Hi-tech--Advanced R&D Team

4.Certifications--Applied with CE, ISO 9001, ISO14001

5. Good quality--BEDFORD Brand

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