Description
SIEMENS 6SN1145-1BA01-0BA2 – SIMODRIVE 611 Line Infeed Module for Stable DC-Link Supply
The SIEMENS 6SN1145-1BA01-0BA2 is a SIMODRIVE 611 line infeed module designed to provide a stable DC-link for multi‑axis drive systems. In many cases it’s used in machine tools, printing lines, and packaging equipment where uptime matters and cabinet space is tight. One thing I appreciate is how it drops into existing 611 racks with minimal fuss—typically a straightforward swap when you’re reviving a production line or standardizing spares across multiple machines.
From my experience, this version with internal pre‑charging helps limit inrush current at power‑up and keeps the DC bus clean for the downstream motor modules. You might notice that the module itself doesn’t host fieldbus communications; that’s normal on SIMODRIVE 611—the infeed takes care of power, while the control unit handles the logic and networking.
Order Placement Process & Guarantees
- Warranty period: 365 days
- Delivery time: typically 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express options: FedEx, UPS, DHL
Key Features
- Line infeed for SIMODRIVE 611 DC link – Feeds the common DC bus that powers multiple motor modules in the rack.
- Internal pre‑charging – Limits inrush current during start‑up, which typically extends component life and reduces nuisance trips.
- 380–480 VAC mains capability – Suits most industrial plants with 50/60 Hz three‑phase supplies.
- Robust cabinet installation – Booksize housing that fits standard 611 heat‑sink/backplane layouts for neat, scalable builds.
- Clear status/diagnostics – On‑module LEDs and 24 V control/status contacts make commissioning and fault tracing quicker in many cases.
- Proven in machine tools and retrofits – Frequently used to restore legacy 611 drive trains without re‑engineering the entire system.
Technical Specifications
| Brand / Model | SIEMENS SIMODRIVE 611 / 6SN1145-1BA01-0BA2 |
| HS Code | 8504.40 (Static converters) |
| Power Requirements | 3AC 380–480 V, 50/60 Hz; internal pre‑charging; DC link approx. 600 V nominal (611 system) |
| Dimensions & Weight | Booksize module; typically approx. 380 × 50 × 265 mm (H × W × D); weight ~7–9 kg |
| Operating Temperature | 0 to +45 °C (up to +55 °C with derating in many cases); non‑condensing environment |
| Signal Input/Output | 24 VDC control/status terminals (e.g., Ready/Fault); DC‑link busbars; PE/ground connection |
| Communication Interfaces | System‑internal within SIMODRIVE 611; external fieldbus handled by control unit (not on the line infeed) |
| Installation Method | Cabinet mounting on SIMODRIVE 611 heat‑sink/backplane; vertical orientation with forced‑air cooling |
Related or Supporting Products
- SIEMENS SIMODRIVE 611 Motor Modules (6SN1123 series) – Pair with the infeed to power individual axes; current ratings vary by axis load.
- SIEMENS SIMODRIVE 611 Control Units (6SN1118 series) – Provide closed‑loop control and fieldbus interfaces (PROFIBUS DP, etc.).
- Alternative Line Infeed Variants (e.g., 6SN1145-1BA01-0BA1) – Earlier revision with similar function; check rating plate and firmware compatibility.
- Braking/Regeneration Options (SIMODRIVE 611 dedicated modules) – For applications requiring dynamic braking or energy feedback.
Note: Compatibility can depend on rack configuration, firmware, and mains available short‑circuit capacity. When replacing older units, a quick photo of your current 611 rack helps verify the best match.
Installation & Maintenance
- Cabinet & Cooling – Install vertically in a closed control cabinet per EN 60204‑1. Provide unobstructed airflow; maintain typical clearance above/below the heat sink.
- Wiring – Use appropriately rated 3‑phase supply wiring and protective devices. Bond PE/ground with low impedance. Tighten DC‑link busbar connections to the specified torque.
- Start‑up – Verify phase sequence, insulation resistance, and correct 24 VDC control supply. Internal pre‑charge handles inrush in most cases—avoid external contactor chatter.
- Safety – The DC link retains charge after power‑down; wait the specified discharge time and confirm voltage is safe before servicing.
- Routine Care – Quarterly dust removal on heat‑sink and vents; check fan operation and terminal torque. Firmware/parameter checks via the 611 control unit as part of preventive maintenance.
- Field Note – A packaging plant reported faster recovery after swapping to this -0BA2 module; only basic enable wiring and DC‑link checks were needed to bring the line back up.
Quality & Certifications
- Conformity: CE; often UL/cUL listed for North America
- Manufacturing quality: ISO 9001 processes (Siemens plants)
- Environmental: RoHS compliant components in typical Siemens builds
- Manufacturer’s warranty (new units): typically 12 months; we supply a 365‑day warranty on supplied units
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