VACON® NXP Common DC Bus is a compact and non-complex solution for system drive applications, such as winding and unwinding in a paper machine or drilling in an oil & gas upstream application. Active Front-end (NXA), Non-regenerative Front-end (NXN), Brake Chopper (NXB), and Inverter (NXI) modules with full power (1.5 kW to 2000 kW) and voltage (380 to 690 V) range for both induction and permanent magnet motors are available, allowing highly customizable drive line-up configurations to meet various customer needs.
Common DC bus components can be used in many different combinations. In a regenerative DC bus system, the active front-end unit generates power back to the mains network. This is suitable for processes where braking is needed often and the braking power is relatively high. In a non-regenerative system, braking power is redistributed to other drives in the system, and possible excess power can be dissipated as heat using an optional brake chopper and brake resistors. This is ideal for small production lines where braking is needed less often.
