RD52.1-4N-110-L-NN-FW

RD52.1-4N-110-L-NN-FW, Bosch Rexroth Indramat, RD 500 Drive Controllers brings vector control performance to heavy-duty applications. The unit accepts a Nominal Connecting Voltage of 3 x AC 380-480 V and delivers a continuous Rated Power of 110 kW with forced air cooling for sustained operation at up to 1,000 m elevation. An integrated RS232 serial interface on connector X11 allows seamless PC or user panel integration for rapid parameterization. Protective measures include a direct connection between protective earth and reference ground and an S5 jumper to select the correct supply voltage.

In-depth connectivity and safety are pivotal: five digital inputs and three digital outputs reside on the standard terminal strip at connector X14, while a removable user panel supports quick cloning and diagnostics. The drive links to motors via U2, V2, and W2 terminals and features a high-capacity gL type 250 A series fuse plus a high current bushing terminal for robust DC link coupling. A two-pole plug connector readies a standby 24 V power supply, and starting lockout is implemented via plug-in at connector X80. Key mechanical fixes include a steel-plate lug with an M8 captive nut torqued to 12 Nm for the protective conductor.

Designed for resilient, multi-drive systems, the RD52.1-4N-110-L-NN-FW supports Synchrolink peer-to-peer coupling and endures 170% overload for one second, with a 0.3 ms torque rise time and 0.1 ms current cycle time for precise response. Immunity to industrial noise complies with EN 50082-2, and operation up to 90% relative humidity ensures reliability on the factory floor. The compact converter’s modular interfaces and proven ruggedness make it ideal for conveyors, extruders, and other process-critical machines seeking high-performance vector control.