Description
Product Overview
In a medium-voltage variable-frequency drive, modulation electronics help translate control demands into the switching commands required by the power-conversion system. The Siemens Robicon A1A10000350.00M is identified in the Perfect Harmony spare-parts list as a firmware-equipped modulator printed circuit assembly. It is listed alongside the NXGII system I/O board, fiber-optic link board, communications board, and signal conditioning board, placing it within the drive’s coordinated control architecture rather than the plant’s general-purpose PLC I/O system.
The exact role of this board must be interpreted in the context of the installed drive generation. Siemens documentation identifies the A1A10000350.00M as a modulator board in the NXGII control spare-parts list. Other supplier references associate the same part with Perfect Harmony Gen IV equipment, so the model number alone should not be used to assume that every NXGII and Gen IV application has identical hardware or firmware requirements. Confirm the drive model, production bill of materials, board revision, and relevant service documentation before procurement.
For maintenance teams, the Siemens Robicon A1A10000350.00M is a candidate spare when a diagnosed modulator-board fault affects drive operation. A drive trip or power-cell communication alarm does not automatically prove that this board has failed; the cause may lie in another control assembly, cabling, power-cell electronics, or configuration. Before replacement, record the fault history and board markings, inspect the related connectors, and verify the correct replacement part and revision. Since the board is listed as firmware-equipped, confirm the required firmware state and any commissioning procedure rather than assuming that an untested replacement can be installed and returned directly to service.
Product Introduction
When a drive fault involves modulation or power-conversion control, replacing the wrong PCB can extend downtime without correcting the underlying problem. The A1A10000350.00M is identified by Siemens Robicon spare-parts references as a firmware-equipped modulator board for the Perfect Harmony control ecosystem.
Before ordering, match the board label and revision to the installed drive documentation. Confirm firmware requirements, condition, and functional-test evidence with the supplier, especially for legacy equipment.
Key Technical Specifications
| Parameter | Details |
|---|---|
| Product model | A1A10000350.00M |
| Manufacturer / brand | Siemens Robicon |
| Product type | Modulator printed circuit assembly (PCA) |
| Firmware | Listed as firmware-equipped; installed version must be verified |
| Siemens order number | 6SR0960-0CB03-0AD0 |
| Drive family | Robicon Perfect Harmony |
| Controller association | Listed in NXGII control spare-parts documentation |
| Primary function | Modulator control within the drive control architecture |
| Installation | Internal drive control assembly; confirm mounting position |
| Input signal details | Not independently verified |
| Output / switching signal details | Not independently verified |
| Supply voltage | Not verified for this specific board |
| Communication interfaces | Confirm from the board revision and drive documentation |
| Operating temperature | Not verified |
| Protection rating | Not verified; intended for the applicable drive assembly |
| Firmware compatibility | Confirm against drive generation and production bill of materials |
| Lifecycle status | Current manufacturer status not verified |
| Condition / warranty | Confirm with supplier |
The Siemens order number and firmware-equipped modulator-board designation are listed in Robicon spare-parts references. Electrical ratings, connector pinouts, and firmware compatibility should be confirmed from the documentation for the specific drive installation.

A1A10000350.00M
Related Products
These components are listed in the same Robicon control-system spare-parts ecosystem. They perform different functions and should not be assumed interchangeable.
1. A1A10000423.00M — NXGII System I/O Board Handles system I/O functions. Relevant when investigating I/O-related faults rather than a confirmed modulator-board failure.
2. A1A461D85.00M — Fiber-Optic Link Board Listed as a 12-channel fiber-optic board. It serves a different role from the modulator board in the control architecture.
3. A5E03407403 — Communications Board Provides communications functionality within the NXGII control system. Verify the installed network adapter and revision when troubleshooting communication alarms.
4. A5E01708486 — Signal Conditioning Board A separate board used for signal conditioning. It should not be substituted for the modulator board without explicit engineering documentation.
5. A1A10000623.00M — Single-Board Computer and Keypad Adapter The NXGII controller assembly responsible for higher-level computing and keypad-interface functions.
6. A1A363628.00M — NXG Backplane Provides the board interconnection structure in the NXG control platform. Check the exact controller generation before sourcing.
7. A1A10000432.xxM — Power-Cell Control Board Family Separate control-board references used in Robicon power-cell applications. The specific suffix matters; these boards are not established substitutes for A1A10000350.00M.
8. A1A252241.55S — Fiber-Optic Hub Board Kit A related fiber-optic assembly in the NXGII spare-parts list. Check the kit contents and intended application before ordering.
Frequently Asked Questions
Q1. What does the Siemens Robicon .00M do?
It is identified as a firmware-equipped modulator board for Robicon Perfect Harmony drives. Its exact function and interfaces should be checked against the installed drive generation and technical documentation.
Q2. Is .00M the same as the fiber-optic link board?
No. The modulator board and the A1A461D85.00M fiber-optic link board are listed as separate components. Do not treat them as interchangeable.
Q3. Can I replace the existing board with a different revision?
Only when the manufacturer’s documentation or an approved engineering cross-reference confirms compatibility. Siemens service documentation instructs users to replace components with the same part number and revision unless otherwise specified.
Q4. Can I hot-swap this board while the drive is running?
Do not assume hot-swap support. Follow the drive-specific shutdown, isolation, and stored-energy discharge procedure. Medium-voltage drive maintenance must be performed by qualified personnel under the applicable site safety procedures.
Q5. Does the board support firmware v3.1?
A specific firmware v3.1 compatibility statement has not been verified. Confirm the drive generation, current firmware, board revision, and required firmware-loading or commissioning procedure before installation.
Q6. Will installing a replacement board erase drive settings?
That depends on the control architecture and where the relevant data is stored. Back up accessible drive parameters and record the existing hardware configuration before replacement. Confirm whether the replacement requires firmware loading, configuration, or additional commissioning.
Q7. What should I check before purchasing a replacement?
Request the actual board photographs, complete part number, revision markings, condition classification, and any available functional-test records. Ask the supplier to confirm compatibility with your exact drive model and production bill of materials. Clarify warranty and return terms, particularly if the unit is refurbished or unused surplus.
