Product Description:

The 1070084662-110 drive module is produced by Bosch Rexroth Indramat and belongs to the DM Servo Drives series. Designed for cabinet installation, this unit converts a regulated DC bus into three-phase AC so that downstream motors receive controlled voltage and frequency. Within an automation cell, it functions as the power stage of a closed-loop axis, accepting command signals from a higher-level controller and modulating current to match torque commands. This arrangement keeps power conversion close to the motion axis while leaving coordination and sequencing to the main control system. Because the module works from a shared DC supply rather than a standalone mains input, several axes can be arranged in a common cabinet with a centralized power structure.

The drive shares the system’s common DC bus at 670 V DC and draws up to 6 A DC under nominal load. Internally, the inverter can synthesize output sine waves to 800 Hz, allowing spindle or linear motors to run far above line frequency. During short overload periods, the current can rise to 18 Arms at a 4 kHz carrier, providing extra torque for acceleration. A continuous switching pattern of 8 kHz reduces current ripple and acoustic noise, and the resulting thermal load is limited to a maximum loss of 121 W that must be removed by panel ventilation. The drive also balances high output frequency with controlled switching behavior so the motor can follow rapid speed commands while keeping electrical noise manageable.

At elevated enclosure temperatures, the permissible current falls at 0.32 A/K, so adequate airflow is required when ambient exceeds 45 °C. The steady-state phase output of 5.8 A sets the axis’s continuous torque capability when operation remains within thermal limits. Installation weight is 6.0 kg, which supports stable cabinet mounting and adds thermal mass to the assembly. Thermal planning remains important when several modules are installed side by side in the same enclosure.