The Siemens C98043-A7001-L2 (6RY1703-0AA01) is a CUD1 (Control Unit Drive) control electronics board for the Siemens SIMOREG DC MASTER (6RA70) and SIMODRIVE drive families. Its core function is to serve as the central processing unit for the drive, executing motor control algorithms, managing communication, and processing I/O signals for precise speed and torque regulation in DC drive applications.
Item No :
C98043-A7001-L2Order(MOQ) :
1Payment :
EXWProduct Origin :
RomaniaShipping Port :
Wuhan, Hubei, ChinaLead Time :
3-5 daysWeight :
0.239kgSpecifications
Siemens plc board C98043-A7001-L2
| Origin | Romania |
| Net Weight (kg) | 0.239kg |
| Packaging Dimension |
* |
Key Parameters and Features
| Item | Specifications / Features |
|---|---|
| Product Type | CUD1 Control Electronics Board |
| System Platform | Siemens SIMOREG DC MASTER (6RA70), SIMODRIVE |
| Order Number | 6RY1703-0AA01 |
| Product Lifecycle Status | Spare Part (PM410) |
| Software Version Support | Version 3.x |
| Weight | Approx. 0.23 kg |
| Dimensions (L x W x H) | Approx. 26.4 x 12.6 x 1.2 cm |
| Country of Origin | Austria |
| RoHS Compliance | Yes |
| Availability | In Stock |
Central Control Unit for SIMOREG Drives: The module's primary function is to act as the "brain" of the SIMOREG DC MASTER drive, executing the core control logic for motor speed, torque, and current regulation. It is a key component for maintaining existing 6RA70 systems .
Version 3.x Software Support (CUD1-L2): A standout feature of the L2 version is its support for software version 3.x . This is the key differentiator from the earlier L1 version, which was limited to versions 1.x and 2.x. Boards with the L2 suffix, particularly those with the identifier 6RY1703-0AA01, are required for these later firmware versions .
Drop-in Replacement and Backward Compatibility: The L2 board can directly replace an older L1 board in most cases. It maintains parameter compatibility, meaning a drive can be upgraded to the L2 board without needing to rewrite the entire parameter set .
Spare Part Status for Legacy Support: Officially designated as a spare part (PM410) by Siemens, the C98043-A7001-L2 is intended for the repair and maintenance of existing drive systems rather than new projects . This status confirms its role in supporting legacy industrial automation assets.
The C98043-A7001-L2 is utilized as a core control component in Siemens drive systems across various industrial sectors:
DC Motor Control: Precise speed and torque regulation in SIMOREG 6RA70 DC drives .
Heavy Industry: Rolling mills, crane drives, and extruder lines.
General Automation: Material handling, conveyor systems, and processing equipment requiring precise DC motor control.
Q1: What is the difference between C98043-A7001-L1 and C98043-A7001-L2?
A: The key difference is the supported software version. The L1 version supports software versions 1.x and 2.x. The L2 version is designed for and supports software versions 3.x . The L2 board is also the later production version .
Q2: Can a C98043-A7001-L1 board be replaced with an L2 board?
A: Yes, the L2 board can be used as a direct replacement for the L1 board . Since L2 boards already come with the new software, the drive parameters do not need to be changed for it to work as it did before the replacement .
Q3: What is the product lifecycle status of this module?
A: The 6RY1703-0AA01 is designated as a spare part (Product Lifecycle Management code PM410) by Siemens . This means it is not intended for new system designs but is available for the repair and maintenance of existing systems.
Q4: What is the significance of the "6RY1703-0AA01" order number?
A: The "6RY1703-0AA01" is the official Siemens order number for the complete spare part, which includes the C98043-A7001-L2 control electronics board and its terminals . The "C98043-A7001-L2" is the article number of the board itself.
Q5: Where can I find replacement or repair services for this board?
A: Given its spare part status, the board is available from various third-party suppliers . In case of failure, Siemens recommends replacing the card, as repair requires specialized SMD technology and schematics not publicly available .
The C98043-A7001-L2 is part of the SIMOREG DC MASTER (6RA70) ecosystem. Below are key related models and spare parts:
| Product/Model | Type | Brief Description |
|---|---|---|
| C98043-A7001-L2 (6RY1703-0AA01) | Featured Module | Control electronics board (CUD1) supporting software version 3.x |
| C98043-A7001-L1 | Older Version | Previous control board version supporting software up to 2.x |
| C98043-A7001-L2-A2 | Variant | L2 board with software version 2.x |
| C98043-A7001-L2-A3 | Variant | L2 board with software version 3.x |
For existing 6RA70 systems using software version 3.x: The C98043-A7001-L2 (6RY1703-0AA01) is the correct and recommended spare part.
For systems running older software (versions 1.x or 2.x): It is advisable to verify compatibility, as using an L2 board with software 3.x may cause unexpected behavior .
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The ABB AINT-14C (68685826D) is a Main Circuit Interface Board designed for the ABB ACS800 series drives. It serves as the critical signal bridge between the drive's control unit and external automation systems (PLC/DCS), handling analog/digital I/O and DDCS fiber optic communication.
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