DKC22.3-016-7-FW

DKC22.3-016-7-FW is a Bosch Rexroth Indramat EcoDrive unit in the DKC Drive Controllers series. It uses design version 3 and interface option 22. Natural-convection cooling removes heat without a forced-air fan, while power dissipation is 80 W. The controller has a mass of 3.2 kg.

The rated current is 16 A, and peak current 1 is also 16 A for short-duration current demand. The DC bus operates at a nominal 700 V and has 0.135 mF of capacitance for energy storage. At a 480 V input, the bus supplies 0.6 kW. Its coupling capacitance is 100 nF, and the control circuits draw 16 W. The charge current is 2 A, while a 240-ohm soft-start resistor limits inrush current during bus charging.

The maximum bus charge is 1.0 kWs, and the maximum energy dissipation is 1.0 kWs. Peak bleeder power is 2.7 kW for dissipating excess DC-bus energy. The overvoltage limit is 45 V for 1 ms, setting the permitted short-duration overvoltage level. At an 8 kHz switching rate, the controller supports an output frequency of 800 Hz.