CNC & Drive Control Solution — Siemens A5E03462628 / A5E03462631 | SINAMICS Control Board
The Siemens A5E03462628 / A5E03462631 is a precision control board designed for SINAMICS series variable-frequency drive (VFD) systems. It serves as the core signal-processing and regulation unit within the drive module, governing motor speed, torque, and protection logic across demanding industrial environments.
Where This Product Is Used
This control board is specified by engineers across a wide range of industrial applications:
- CNC Machining Centers — Spindle and axis drive regulation in milling, turning, and grinding machines
- Conveyor & Material Handling Systems — Speed-controlled belt drives in logistics, mining, and packaging lines
- Pump & Fan Control — Energy-efficient variable-speed control in HVAC, water treatment, and process plants
- Crane & Hoist Systems — Precise torque and speed management for overhead lifting equipment
- Compressor Drives — Soft-start and variable-load control in oil & gas and chemical processing
- Printing & Textile Machinery — Synchronised multi-axis drive coordination
- Automotive Assembly Lines — Servo-drive integration in body-shop and paint-shop automation
Technical Specifications
| Manufacturer | Siemens AG |
| Part Number (Primary) | A5E03462628 |
| Part Number (Alternate) | A5E03462631 |
| Product Series | SINAMICS Drive Control Module |
| Component Type | Control Board / Regulator Card |
| Compatible Drive Family | SINAMICS S / G Series VFD |
| Form Factor | PCB Module (plug-in card) |
| Weight (approx.) | 3,000 g (packaged) |
| Condition | New / Refurbished (tested) |
| Origin | Siemens OEM |
Why Engineers Specify This Model
- Dual-SKU Compatibility — A5E03462628 and A5E03462631 are functionally interchangeable, simplifying cross-reference procurement
- Drop-in Replacement — Direct fit for existing SINAMICS drive chassis; no firmware re-flashing required in most configurations
- High-Reliability Signal Processing — Handles real-time closed-loop feedback for speed, current, and torque regulation
- Reduced Downtime — Stocking this board as a spare eliminates multi-week OEM lead times during unplanned failures
- Broad Drive Compatibility — Supports multiple SINAMICS power stack variants within the same product family
Complete System Bill of Materials
For a fully operational SINAMICS drive replacement or upgrade, engineers typically source the following alongside this control board:
- SINAMICS Power Module (matching kW rating)
- SINAMICS Control Unit (CU240, CU320, or equivalent)
- Operator Panel (BOP-2 or IOP)
- 24 VDC Power Supply (SITOP or equivalent)
- Encoder Feedback Module (SMC30 / SME20 as applicable)
- Shielded Motor Cable & Connector Kit
- Line Filter & Braking Resistor (application-dependent)
Compliance & Industry Standards
- CE Marked — Compliant with EU Machinery Directive 2006/42/EC
- UL / cUL Listed (drive system level)
- RoHS 2 Compliant — Restriction of Hazardous Substances
- ISO 9001 Manufacturing Quality System
- IEC 61800-5-1 — Safety requirements for adjustable-speed electrical power drive systems
Quality Assurance & Sourcing
Every unit offered through Konmask.com undergoes the following before dispatch:
- Visual inspection for PCB damage, burnt components, and connector integrity
- Functional power-on test where applicable
- Anti-static packaging with humidity indicator card
- Batch traceability documentation available on request
We source directly from authorised distributors and verified industrial surplus channels. Counterfeit-free guarantee backed by our sourcing policy.
How to Source This Part
- Confirm your drive model — Check the nameplate on your SINAMICS drive chassis for the exact power rating and control board slot specification
- Cross-reference the SKU — Both A5E03462628 and A5E03462631 are accepted; quote either when enquiring
- Request a quote — Contact us via email or phone for volume pricing, lead time, and availability confirmation
- Place your order — Secure checkout with T/T bank transfer, PayPal, or credit card accepted
- Receive & install — Ships with full ESD protection; installation guide available on request
Application-Specific FAQ
Q: Is A5E03462628 the same as A5E03462631?
A: These two part numbers refer to the same control board assembly with minor revision differences. They are functionally interchangeable in most SINAMICS drive applications. Confirm with your drive’s service manual if in doubt.
Q: Can this board be used as a direct replacement without reprogramming?
A: In most cases, yes. Drive parameters are stored on the Control Unit (CU), not on this board. However, always back up your parameter set before swapping hardware.
Q: What is the typical lead time?
A: In-stock units ship within 1–3 business days. For out-of-stock enquiries, contact us for sourcing lead time.
Q: Do you provide a warranty?
A: Yes. We offer a 90-day functional warranty on all tested units. New OEM units carry the standard Siemens warranty.
Q: Can you supply multiple units for a maintenance stock programme?
A: Yes. Volume pricing is available for orders of 3 units or more. Contact our sales team for a tailored quote.
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