ROBINCON A5E03407403
ROBINCON A5E03407403
ROBINCON A5E03407403
ROBINCON A5E03407403
ROBINCON A5E03407403
ROBINCON A5E03407403
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A5E03407403

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A5E03407403 is a Siemens Robicon NXG series communication board for high-voltage inverters, facilitating fieldbus connectivity, IGBT gate drive signal generation, and real-time fault monitoring
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Technical specifications for A5E03407403

  • Manufacturer:
    Siemens
  • Part Number:
    A5E03407403
  • Product Family:
    Siemens Robicon
  • Product Type:
    Communications Board
  • Operating Temperature:
    -20°C to +55°C
  • Power Consumption:
    < 10W
  • Voltage:
    15V DC / 220V DC (DC Bus)
  • Connector Types:
    RS-232, RS-485, USB, Fiber Optic, RJ45
  • Weight:
    1.55 kg
  • Estimated shipping dimensions:
    25.5x24.8x5.8cm
  • Tariff Code:
    8443999090
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Diagnostics & Hardware Physical Installation

Features:

  • The A5E03407403 serves as the latest-generation communication backbone for Siemens Robicon NXGI and NXGII controllers, replacing earlier versions and ensuring compatibility with modern industrial networks via Anybus modules
  • This board translates low-voltage control signals into high-current gate pulses for up to four IGBTs per power cell. It performs high-speed desaturation detection and short-circuit monitoring to protect sensitive drive components
  • The board supports a wide range of industrial communication standards (Profibus, Modbus, Ethernet) through interchangeable Anybus adapters, ensuring seamless integration into existing automation architectures
The A5E03407403 is identified as the latest evolution of the communication printed circuit board for the Siemens Robicon Perfect Harmony high-voltage drive series, specifically for units using NXG (Next Generation) I or II controllers . Prior to its release, there were several earlier generations of communication boards with different form factors and capabilities; the A5E03407403 acts as the definitive replacement, consolidating functions and improving reliability .

The A5E03407403 plays a dual role by also functioning as a direct interface to the power switching devices. Located within the power cell, this board receives low-voltage pulse-width modulation (PWM) signals from the cell control board (CCB). It then conditions and amplifies these signals to properly drive the gates of the four Insulated Gate Bipolar Transistors (IGBTs) that constitute the H-bridge of the power cell . Specifically, it provides the firing signals for the TOP1, BOT1, TOP2, and BOT2 IGBTs.

A distinct advantage of the A5E03407403 is its modular approach to system integration. While the base board handles the internal communication protocols of the drive, external factory network connectivity is handled by pluggable "Anybus" modules that sit directly on top of the A5E03407403 . This allows the same drive to be adapted to different plant standards simply by swapping the top module. Documentation specifies that for a Profibus network, the required module is A1A252241.155; for DeviceNet, it is A1A252241.156; and for Modbus TCP/Ethernet, it is A1A252241.157.

The A5E03407403 ROBINCON Communications Board may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

ROBINCON A5E03407403 Communications Board Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
ROBINCON A5E03407403 Communications Board Specs

General

  • Manufacturer ROBINCON
  • Model A5E03407403
  • Condition New Original ready stock
  • Product Family A5E32168144,A5E32100313,A5E02363383
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
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  • Power Generation Facilities: Induced Draft (ID) fans, Forced Draft (FD) fans, and high-pressure boiler feed water pumps in thermal, biomass, or nuclear power plants.
  • Heavy Mining & Metallurgy: Deep-well main drainage matrix systems, heavy blast furnace blowers, and slurry transport pump grids in mineral processing mills.
  • Galvanic Optical Isolation: To shield delicate microprocessors from the heavy electromagnetic interference (EMI) generated by high-voltage cell firing, all external serial/Ethernet ports feature high-voltage optoelectronic isolation and surge suppression circuits. This ensures any external lightning strike or transient surge on the network line will only sacrifice the interface layer without reaching the CPU core.
  • Hardware Watchdog Timer: Features an embedded independent hardware watchdog. If severe industrial EMI freezes the onboard communications chip, the board executes an automatic microsecond reset and issues a safe-state signal to the main CPU, preventing the high-voltage motor from running uncontrolled.
  • Strict Electrostatic Discharge (ESD) Protection: The board features sensitive CMOS components. Technicians must wear a grounded ESD wrist strap before handling the card and must avoid direct human finger contact with the gold finger contacts or component pins.
  • Mechanical Seating & Rail Alignment: The board inserts into a designated ISA backplane slot inside the NXG control cabinet. Slide the card smoothly along the guide rails, apply firm, even pressure until the gold fingers are fully seated into the backplane, and tighten the front retaining screws to counteract plant structural vibration.
Description
The A5E03407403 is a third-generation communications printed circuit board (PCB) designed for Siemens Robicon NXGI and NXGII controllers in high-voltage inverter systems . This A5E03407403 board replaces earlier generation communication modules, offering improved performance for industrial automation applications. 

The A5E03407403 board also functions as an IGBT driver interface, receiving control signals from the unit control board and generating the necessary gate drive signals for up to four IGBTs per power cell . Additionally, the A5E03407403 continuously monitors for drive faults (e.g., desaturation or short circuits) and reports them back to the main controller. 

Physically, the A5E03407403 is built for industrial environments, operating reliably across a wide temperature range of -20°C to +55°C with low power consumption under 10W . It features versatile connectivity options, including RS-232, RS-485, and USB interfaces, supporting protocols such as Ethernet, Profinet, and Modbus TCP.
Alternative Names
A5EO34O74O3 A5E01708486 A5E00444860 A5E02363383 A5E32100313 A5E32168144 39EAMCBN A5E00282025/05 39VIMCCN A5E00282175/07
Technical notes
The A5E03407403 is the third-generation communication board for the Siemens Robicon NXG platform. It facilitates high-level fieldbus communication via Anybus modules (Profibus, DeviceNet, Ethernet) and interfaces directly with power cells to provide IGBT gate signals and real-time fault monitoring.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which specific Siemens drive system uses the A5E03407403 board?
The A5E03407403 is used in the Siemens Robicon Perfect Harmony high-voltage AC drives for the NXG (Next Generation) control platform.
Does the A5E03407403 board handle IGBT control?
Yes, the A5E03407403 acts as a driver interface. It receives logic signals from the unit control board and converts them into the high-current gate pulses needed to switch the four IGBTs (TOP1, BOT1, TOP2, BOT2) inside the power cell.
Is a separate module required for Profibus connectivity with A5E03407403?
Yes. While the A5E03407403 manages communication, the physical fieldbus connection requires a specific Anybus module.
What are the environmental ratings of the A5E03407403 board?
The A5E03407403 is rated for an operating temperature range of -20°C to +55°C, making it suitable for harsh industrial conditions.

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