Siemens 6SN1145‑1BA02‑0CA0 Infeed Feedback Unit

Module Feature

6SN1145‑1BA02‑0CA0 belongs to Siemens SIMODRIVE 611 series regulated E/R infeed module, rated 36/47kW. It provides stable DC bus voltage for 611 power modules and supports regenerative energy feedback to grid. Equipped with internal cooling and mains contactor, widely used on old CNC machine tool servo drive systems.

Working principle

It converts three‑phase AC into regulated DC bus voltage for axis power modules. During motor deceleration, the module feeds regenerative power back to the grid, avoids energy consumption on braking resistors.

Onboard components

Rectifier and feedback IGBT unit, control circuit, built‑in mains contactor, DC bus terminals, status LED, cooling fan, metal housing.

LED indicators

LEDs indicate power ready, running and fault alarm status.

Hardware self‑diagnosis

Detect overvoltage, undervoltage, overcurrent, overtemperature, grid fault, read fault codes via 611 diagnosis interface.

Programming software

Parameter setting and diagnosis by Siemens SIMODRIVE 611 commissioning tool.

Electrical & Process Parameters

Model:6SN1145‑1BA02‑0CA0 Brand:Siemens Device type:Regulated Infeed Regenerative Module Power rating:36/47kW Input:3AC 400V Output:Stable DC bus Function:DC bus power supply and energy feedback for 611 servo axes

Mechanical & Structure

Mounting:611 rack mounting Protection class:IP20 Housing:Metal modular housing

Environmental

Operating temperature:0℃ ~ +55℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing Certification:CE industrial drive standard compliant Status: Siemens SIMODRIVE 611 series infeed module

Installation

Install module in 611 rack, connect three‑phase power and DC bus. Wire enable and fault signal cables, complete commissioning before running servo axes.

Interface

Three‑phase grid input terminals, DC bus output terminals, enable and fault signal terminals.

Diagnostic

Overvoltage fault: excessive regenerative energy. Overtemperature: fan damage or poor cabinet ventilation. Ready signal missing: contactor fault or wiring error.

Product Brief

Siemens 6SN1145‑1BA02‑0CA0 611 E/R infeed module, supplies regulated DC power and realizes grid feedback for CNC servo drive system.