Product Description:

The TDM 1.2-100-300-W1-115 is a servo drive module manufactured by Bosch Rexroth Indramat within the TDM Servo Drive Modules series. It converts three-phase mains power into a controlled DC link and phase-modulated output, allowing connected industrial motors to follow precise current commands generated by higher-level motion controls. By managing acceleration, deceleration, and steady-state load requirements, the unit forms the electrical interface between programmable controllers and mechanical actuators in assembly lines, packaging cells, and material-handling systems.

In continuous operation, the drive delivers 65 A, which is its steady-state current capability, while its electrical throughput is rated at 30 kW under nominal thermal conditions. The intermediate bus is stabilized at 300 V, so capacitors, contactors, and supply cabling must tolerate that voltage. For transient demands, the output may climb to 100 A, providing brief overload headroom. Heat generated during these cycles is removed by forced ventilation, and at nominal load the assembly dissipates 400 W as power loss. The cooling fan consumes 30 VA from an external 115 VAC feed and is protected by a 0.630 A/250 E fuse. A current feedback factor of 0.050 V/A produces an analog signal proportional to motor current, and auxiliary electronics can draw up to 140 mA from the internal +15 V source.

The enclosure has an IP10 protection class, so it requires cabinet installation to block falling objects and accidental contact. Functional limits remain valid until ambient air reaches 55 °C; above that point, additional cooling or derating is necessary. Installation altitude must not exceed 1000 m to keep air-density-dependent cooling within its intended range. Commutation accuracy is maintained because the minimum trigger current is 15 A. Despite its power rating, the module weighs only 10.5 kg, which helps simplify handling during installation.