Main Features of B688 Series Intelligent Pump Drive

1)Adjust the difference between pressure sensor & controller by UP & DOWN on the keypad

2)Maximum 4-pumps on-line and mutual master & slaves pumps

3)PWM wave control & 4 system working modes

   ---Manual operation

   ---Single pump system

   ---multi-pumps system

   ---General purposed frequency inverter operation.

4)Auto-switch between master & slave pumps

5)RS-485 modbus communication

6)PID auto-control without setting the parameter

7)Pump start pressure setting.

8)0~10V & 4~20mA pressure signal available

9)Ultra-high pressure and Ultra-low pressure alarm

10)water shortage protection alarm

11)Water pump sleep/Wake up function.

12)Anti-Rust (freeze) functions

13)Master/Auxiliary LED parameter display

14)Real-time/Actual pressure monitors

15)Easy to install onto water pump with backpack

Specification
Wiring Diagram


Dimension