Product Description:

The TDM 2.1-30-300-W1-115 is a servo drive module manufactured by Bosch Rexroth Indramat and assigned to the TDM Servo Drive Modules series. This module converts AC supply energy into a regulated DC link and controlled output phases that energize industrial servomotors, allowing closed-loop speed and position control in automated machining centers, assembly lines, and material-handling cells. It interfaces directly with a higher-level motion controller, reads motor feedback, and modulates current to maintain precise torque during changing load conditions. That operating role helps the connected axis keep repeatable motion and stable cycle timing in demanding automation tasks. It is suited to applications that require accurate axis response during repeated starts, stops, and speed changes throughout normal production.

The drive can supply a continuous motor phase current of 30 A, and this current limit supports rapid acceleration without requiring a larger module. When full current is delivered at rated voltage, the module can support mechanical loads up to 9 kW. Energy passes through a DC link held at 300 VDC, which helps isolate motor-side transients from the mains and supports dynamic braking. Semiconductor switching and copper losses generate 190 W of internal heat, so cabinet airflow must remove that heat during sustained operation. The enclosure has a rating of IP 10 for personnel protection. Control electronics draw 140 mA from the internal +15 V rail and 60 mA from the -15 V rail, while the external +15 V terminal can source up to 15 mA for encoder or sensor power.

The module operates without derating at ambient temperatures up to 55 °C and installation heights up to 1000 m. Cooling is provided by forced ventilation, and a cabinet-mounted fan rated at 30 VA runs from a separate AC 115 V supply to maintain airflow across the power components. Using a separate fan feed keeps the cooling circuit independent of the drive's control power. With adequate ventilation, the link-circuit voltage, current capability, and low-voltage supplies remain stable during continuous duty and frequent acceleration cycles.