Famous BEDFORD years of variable speed drive
B503D series variable speed 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
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 speed 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 speed drive
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. Variable speed drive
AVR: Can output constant voltage automatically when input voltage is fluctuating.
Offer RS485 serial communication interface. Standard ModBus.
Over-troque Detection Function. Variable speed drive
Power Range:
Single phase 220V 1HP~3HP(0.75KW~2.2KW)
Three phase 220V 1HP~75HP(0.75KW~55KW)
Three phase 380V 1HP~860HP(0.75KW~630KW)
Applications:
B503D series variable speed drive (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.
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