TDA 1.1-100-3-API

TDA 1.1-100-3-API, Bosch Rexroth Indramat, TDA Main Spindle Controllers highlights a robust design for precision spindle regulation in demanding machine tools. This main spindle controller delivers a Rated Current of 100 A and sustains a Continuous Effective Current of 70 A to drive high-torque spindles with consistent performance. Weighing just 10.5 kg, it offers an optimal power-to-weight ratio for compact control cabinets. Sub-miniature D-type connectors must be firmly secured, ensuring reliable signal integrity under vibration and load.

The controller accepts a Command Value of analog and draws 1.4 A at 24 V load voltage plus 160 mA at ±15 V test voltage, maintaining stable auxiliary power. An incremental encoder output with 360,000 increments/rev resolution in C-axis mode enables ultra-fine positioning and smooth spindle speed transitions. The unit operates in ambient conditions up to 70 % relative humidity without condensation and is stored between -30 to 85 °C, safeguarding electronics during transport and downtime. Internal microprocessor Control monitors diagnostics via the front display, while the Sub-miniature D-type and plug-in terminal motor thermistor connections simplify installation and maintenance.

Engineers benefit from the controller’s industry-standard housing with three M6 tapped mounting holes and a secure master switch preventing inadvertent reactivation during service. Its conformal-coated electronics and tight cable management reduce EMI susceptibility, boosting reliability in high-speed spindles. Ideal for CNC lathes, milling centers, and precision grinding machines, the TDA 1.1-100-3-API integrates seamlessly into Bosch Rexroth Indramat motion architectures for enhanced uptime and productivity.