Product Description:

The DDC1.1-K150A-DG02-00 is a servo drive produced by Bosch Rexroth Indramat for the DDC Digital Intelligent Servo Drives series. As a closed-loop power stage, it supplies regulated current to a synchronous motor and processes encoder feedback so motion sequences in automated machinery remain repeatable. Its role in an industrial cell is to translate low-level control commands into precise torque and speed, allowing the higher-level controller to coordinate axes without mechanical relays or variable transformers.

This drive connects to the plant mains through a three-phase input of 3 × 230 VAC and can deliver a continuous output of 150 A to the motor terminals. Command wiring uses a logic supply of 24 VDC, and the interface accepts up to 150 mA on that line while the analog command channel sources or sinks signals within a range of ±10 V. The corresponding analog load is limited to 4 mA, while the separate ±15 V monitoring rails each permit 100 mA. The 24 V logic rail for external sensors is also capped at 100 mA. Pulse-enable sequencing has a 100 ms on-time, ensuring that the power bridge is gated only after upstream safety interlocks are satisfied. All electronics are sealed in an IP65 housing, allowing the unit to tolerate airborne dust and directed water spray when cabinet-free mounting is required.

The overvoltage circuit activates when the DC-bus voltage reaches 475 V, while a separate Ud contact changes state once the link reaches 200 V so external bleeder resistors can engage early. Forced exhaust is unnecessary because cooling relies on filtered air drawn across the heat sink. Resolver or encoder signals can travel up to 75 m through a shielded feedback cable without losing position fidelity. The internal brake driver releases the holding brake at 24 VDC. Controlled stopping is supported by a maximum brake time of 0.4 s, coordinated with the 100 ms pulse window.