Product Description:

Bosch Rexroth Indramat produced the TDM 1.2-050-300-W1-220/S102 servo drive module within the TDM Servo Drive Modules series. The unit serves as a current-controlled amplifier that links a shared DC bus to individual servo motors, governing torque in automated transfer lines and CNC axes. By conditioning speed commands on its plug-in signal board, the module establishes a closed-loop current profile that maintains precise motion under shifting mechanical loads. This arrangement supports accurate position control in multi-axis cabinets where each motor must respond consistently to the central drive system.

The power stage is dimensioned for a continuous motor current of 45 A, enabling the connected motor windings to draw stable torque during extended duty cycles while staying within the thermal envelope. Its semiconductor bridge can deliver up to 15 kW of sustained mechanical power when the shared DC bus is at 300 V DC, and a short-term overload threshold permits a peak output of 50 A for rapid acceleration. Internal cooling relies on a fan supplied from an AC 220 V line, so no separate low-voltage feed is required for that function. The controller interprets analog feedback through a 0.050 V/A measurement ratio, and the signal board supplies +15 V at 140 mA and −15 V at 60 mA for external transducers.

The module is rated for ambient air up to 55 °C, and humidity conditions follow Class F requirements. Operation is permitted at altitudes up to 1000 m without derating, which supports use in standard industrial installations. Total dissipation is 250 W, so enclosure ventilation must remove this heat in addition to motor and supply losses. The housing has an IP10 protection class that helps prevent accidental contact with live parts while allowing airflow through the unit, and the drive weighs 10 kg. The minimum adjustable feedback current is 15 A, and open airflow paths should be maintained around the unit during installation.