DC Drive Control Solution – Siemens C98043-A7044-L1-6 | SIMOREG DC Master Series
Where This Product Is Used
The Siemens C98043-A7044-L1-6 is a drive control board engineered for the SIMOREG DC Master family of fully digital DC drive converters. It is deployed in demanding industrial environments where precise speed and torque regulation of DC motors is mission-critical:
- Steel & Rolling Mills – Main drive control for rolling stands, coilers, and uncoilers requiring tight speed regulation under heavy load transients.
- Paper & Printing Machines – Tension control and register accuracy in multi-section web-fed lines where synchronization is paramount.
- Crane & Hoist Systems – Smooth acceleration/deceleration profiles for overhead cranes, ship-to-shore cranes, and mine hoists.
- Extruders & Mixers – Constant torque control for rubber, plastics, and chemical processing lines.
- Marine Propulsion Auxiliaries – Thruster and winch drive control in offshore and vessel applications.
- Mining Conveyors – Long-distance belt conveyor drives requiring reliable field-weakening control.
Technical Specifications
| Attribute | Value |
|---|---|
| Part Number | C98043-A7044-L1-6 |
| Product Family | SIMOREG DC Master (6RA70 Series) |
| Board Function | Drive Control / Firing Pulse Board |
| Manufacturer | Siemens AG |
| Country of Origin | Germany |
| Compatible Drive Range | SIMOREG DC Master 6RA70xx |
| Control Technology | Fully Digital, Microprocessor-Based |
| Communication Interface | PROFIBUS-DP (via CUD board) |
| Weight (approx.) | 1.5 kg |
| Condition | New / Refurbished OEM |
Why Engineers Specify This Model
- Proven SIMOREG Platform – The 6RA70 series has accumulated millions of operating hours across global heavy industry; the C98043-A7044-L1-6 is a core control element of that reliability record.
- Plug-and-Play Replacement – Direct form-fit-function replacement for failed or aging control boards without drive cabinet redesign.
- Precise Firing Pulse Generation – Ensures accurate thyristor gating for smooth DC motor control across the full speed range, including field-weakening operation.
- Robust EMC Design – Shielded PCB layout and optocoupler isolation minimize interference in electrically noisy mill and crane environments.
- Long Service Life – Industrial-grade components rated for continuous 24/7 operation in ambient temperatures up to 45 °C.
Complete System Bill of Materials
For a fully operational SIMOREG DC Master drive, the following companion components are typically specified alongside the C98043-A7044-L1-6:
- Siemens 6RA7085 / 6RA7090 / 6RA7095 DC Converter Unit
- CUD1 / CUD2 Control Unit (C98043-A7002 series)
- Siemens SIMOREG Power Interface Board (C98043-A7001 series)
- Pulse Transformer Board (C98043-A7006 series)
- PROFIBUS-DP Communication Module (CBP2)
- Encoder Feedback Module (SBP / SBR2)
- DC Motor (frame size matched to drive rating)
Compliance & Industry Standards
- CE Marked – Compliant with EU Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU
- UL Listed components (where applicable)
- RoHS 2 Compliant (Directive 2011/65/EU)
- Manufactured under ISO 9001 Quality Management System
- HS Code: 8537.10 (Boards, panels and consoles for electric control)
Quality Assurance & Sourcing
Every C98043-A7044-L1-6 unit shipped from Konmask.com undergoes the following verification process:
- Visual inspection for PCB damage, burnt components, and connector integrity
- Functional bench test against Siemens factory test parameters where applicable
- Anti-static packaging with humidity indicator card
- Traceable lot documentation retained for 5 years
We source directly from authorized Siemens distribution channels and certified industrial surplus partners. All units are supplied with a 12-month warranty against manufacturing defects.
How to Source This Part
- Add to Cart – Click “Add to Cart” above and proceed to checkout. We accept T/T bank transfer, PayPal, and major credit cards.
- Request a Quote – For volume orders (5+ units) or urgent requirements, email support@konmask.com for a dedicated quotation within 4 business hours.
- Lead Time – In-stock units ship within 1–2 business days from Xiamen, China. Express DHL/FedEx worldwide delivery available.
- Export Documentation – Commercial invoice, packing list, and certificate of origin provided for all international shipments.
Application-Specific FAQ
Q: Is the C98043-A7044-L1-6 compatible with all SIMOREG 6RA70 variants?
A: It is designed for the 6RA70 series. Always cross-reference the drive nameplate and existing board revision before ordering. Contact us with your drive serial number for confirmation.
Q: Can this board be used in a 12-pulse drive configuration?
A: Yes. The SIMOREG DC Master supports 12-pulse operation; the control board functions identically in both 6-pulse and 12-pulse topologies.
Q: What happens if the board fails in a rolling mill during production?
A: Downtime cost in steel mills can exceed USD 10,000/hour. We recommend holding one spare C98043-A7044-L1-6 on-site. Contact us for a consignment stock arrangement.
Q: Do you offer repair services for this board?
A: Yes. Send your faulty board to our Xiamen facility for evaluation. Repair turnaround is typically 5–7 business days with a 6-month repair warranty.
Q: Is PROFIBUS-DP communication supported?
A: PROFIBUS-DP is handled by the CUD control unit, not this board directly. The C98043-A7044-L1-6 interfaces with the CUD via the internal drive backplane.
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