Product Description:

The DKR02.1-W200N-BE45-01-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat for the DKR Drive Controllers series. It is used to control high-power servo and spindle motors in automated machining, packaging, and handling systems where accurate speed and torque regulation are required. The unit belongs to line 02, uses design version 1, and carries function module version 01. It uses a rigid DC bus without a brake chopper, so regenerative energy must be handled elsewhere in the system.

At a switching frequency of 4 kHz, the controller can supply a continuous output current of 120 A, allowing stable torque production on large synchronous axes. For short acceleration bursts, the drive can deliver a peak current of 141 A, which is important when selecting upstream protection and busbar capacity. Its continuous mechanical power capability is approximately 47 kW, indicating the amount of shaft power a connected motor can draw during sustained operation. The power section operates from a three-phase mains supply of 3 x AC 400 to 480 V with a tolerance of ±10%, while the control electronics require an auxiliary supply of AC 230 V with a tolerance of ±10%; the current rating code is 200, which matches cabinet components that use the same busbar geometry and terminal spacing.

Communication with the motion controller is handled through the SERCOS interface, and the drive accepts both digital servo feedback and resolver signals for closed-loop regulation. Thermal management is provided by a built-in air blower that forces air through the heat sink channels to remove internal losses. During full-load operation, the converter releases 1600 W of heat, and because no bleeder is fitted, dynamic braking energy must return to the supply or to an external resistor network. The enclosure, cable brackets, and fan assembly give the unit a total mass of 104 kg, so the panel structure must be able to support that weight.