DC bus voltage

DC bus voltage KE and KEN

The DC bus voltage is calculated as follows: connected mains voltage x 1.35.

Example:

Mains voltage 400 V x 1.35 = 540 V DC bus voltage

DC bus voltage KES

The compact power supply KES creates a controlled DC bus voltage from the network alternating voltage to feed the inverter modules of the KE/KW drive system. The DC bus voltage is regulated to the value set by the parameter ID34170 'Setpoint DC bus voltage'.

Using the parameters ID34207 'DC gain KP', ID34208 'Integral time DC control' and ID34209 'Differentiation time DC control', it is possible to adapt the DC bus voltage controller to the application.

If all 3 parameters = 0, the internal default values apply.