Product Description:

The TDM 1.3-050-300-W1-000/S102 is a servo drive module manufactured by Bosch Rexroth Indramat within the TDM Servo Drive Modules series. The device supplies controlled armature current and voltage to synchronous motors, enabling closed-loop speed and torque regulation in machining centers and automated handling systems. By combining current regulators, gating electronics, and protective monitoring in one housing, it helps keep multi-axis installations compact. This arrangement allows the upstream control system to send motion commands while the drive manages the current response required for stable motor operation.

The drive can deliver a continuous output of 45 A, which corresponds to sustained shaft power of 15 kW when it is paired with an appropriately sized motor. To maintain this rating, the module uses forced ventilation, and a rear-mounted blower moves air across the heat sink to remove internally generated losses. Its control electronics operate from a DC bus of 300 VDC, and a differential amplifier provides a monitor signal with a gradient of 0.050 V/A so external diagnostics can track actual phase current in real time. Under nominal loading, the power loss is 250 W, so adequate cabinet airflow is required to prevent warm exhaust air from circulating back through the module.

The current loop can be adjusted down to a minimum value of 15 A, which helps light-load axes start without excessive inrush. A start-up interlock disables gating until a supervisory signal exceeds 20 mA, and the associated lockout circuit consumes only 0.5 W during standby operation. Control boards load the internal ±15 V rails with 60 mA on the negative side and 140 mA on the positive side, so shared auxiliary supplies must be sized accordingly. During rapid acceleration, the power stage can reach a non-repetitive peak of 50 A before returning to its continuous rating. The aluminum housing weighs 10 kg, which supports straightforward mounting while remaining rigid in vibration-prone machinery.