Product Description:

The MTC-R02.1-E1-A2-NN-NN-FW is a control module produced by Bosch Rexroth Indramat within the MTC200 CNC Modules series. It forms the command core between higher-level numerical control software and distributed servo drives in automated machine tools and production cells. By coordinating axis feedback, power-on sequencing, and real-time fiber communication, the unit converts program instructions into synchronized motion commands for multiple drive amplifiers, allowing precise path interpolation and spindle control inside enclosed electrical cabinets.

Drive communication is carried over the SERCOS optical interface, arranged in a ring-redundant loop topology that maintains signal integrity even if one segment fails. Within each fiber loop, the controller can address up to 8 drives and manage motion for up to 16 axes, so one board suits mid-size machining centers. Electrical loading on the supply rail stays moderate because the internal electronics draw a maximum of 930 mA. During cold starts, the unit can momentarily reach an inrush current of 20 A, which must be considered when sizing fuses. The DC input must not exceed 28 VDC, and ripple on that line has to stay below 4 Vpp to prevent communication dropouts and logic errors.

Field wiring follows cabinet standards. Power enters through conductors up to 1.5 mm², while the protective earth must be at least 6 mm² to satisfy fault current requirements. The electronics maintain function from 18 VDC to the nominal 24 VDC, giving tolerance for battery-backed supplies during sag events. An IP20 housing requires installation inside a closed rack, but the fiber link allows 12.5 dB total attenuation between transmitter and receiver. The photodiode needs at least 10 µW of input, and the laser source never exceeds 450 µW, which helps limit emissions.