Product Description:

The TDM3.3-020-300-W0 servo drive module is produced by Bosch Rexroth Indramat for the TDM Servo Drive Modules series. It converts the constant voltage of the shared DC bus into a pulse-width-modulated output that energizes a brushless motor, while simultaneously monitoring temperature and feedback signals. Within an automated line, the module maintains commanded velocity and reports fault or overtemperature conditions back to the machine controller to support reliable positioning, indexing, and continuous-motion processes. Designed for cabinet mounting, the module interfaces with master drive controllers via standardized signal connectors.

A regulated DC link of 300 VDC feeds the power stage, and the unit can deliver a continuous output current of 15 A to the connected motor. For short acceleration bursts, it supplies up to 20 A, giving additional torque without thermal overload. The analog current monitor provides an Ma output scaled at 0.375 V/A, allowing external equipment to track real-time load. Speed command inputs are interpreted through selectable ratios; the E1/E2 channel translates a 10 V reference into 2000 rpm/10 V, while alternate E3 and E4 ranges support 3000 rpm or 1500 rpm per 10 V signal. An acknowledge contact rated 24 V at 1 A closes when the drive is enabled, and a separate overtemperature contact with the same rating opens if the heat sink temperature exceeds its limit.

Its compact enclosure measures 70 mm in width, 355 mm in depth, and 390 mm in height, simplifying multi-axis layouts where cabinet space is limited. A motor terminal torque of 5 Nm helps prevent loosening of power lugs during vibration. Protective logic inhibits firing if the starting-lockout circuit does not receive at least 20 mA from the 24 V control supply, and the same circuit dissipates only 0.5 W. The interlock circuit and thermal contact can be wired into the external control chain for status monitoring and shutdown response.