Product Description:

The TDM 6.1-015-300-W0 is a servo drive module manufactured by Bosch Rexroth Indramat for the TDM Servo Drive Modules series. It converts stored DC bus energy into regulated motor current so that automated conveyors, pick-and-place axes, and machine tools can execute consistent speed and torque profiles under PLC supervision. This arrangement lets the control system command motor behavior accurately while the drive handles the power conversion needed for smooth axis response.

Internally, the module operates from a link circuit potential of 300 VDC, which serves as the supply for its pulse-width switching stage. During steady operation, it provides a continuous output of 4.5 kW, limited by a phase current of 8 A. This operating level results in only 90 W of thermal loss, so heat is removed by natural convection without the use of fans or liquid cooling. Auxiliary electronics are fed from dedicated low-voltage taps, with the -15 V measuring line drawing 75 mA, the +15 V line requiring 150 mA, the 24 V reference line consuming 50 mA, and the separate 24 V load supply requiring 250 mA. These fixed auxiliary loads help verify supply sizing and confirm that voltage sag will not interfere with sensing accuracy during operation.

For transient motion, the current regulator can deliver up to 15 A, providing added torque during acceleration or while correcting for sudden load changes. Thermal and altitude limits also affect installation, because derating begins above 55 °C, and standard service is specified only to 1000 m, where air density still supports convection cooling. The open chassis has an IP10 ingress rating, so it must be installed inside a protected control cabinet to reduce accidental contact and limit airborne debris. Installation is also simplified by the module weight of 6.5 kg, which allows mounting on common steel backplates without special reinforcement. Vertical clearance around the heat sink is still necessary so the natural airflow path remains open during continuous duty.