Schneider MHDA1008A00 Replacement for Lexium 05 Series

Product Overview

Schneider MHDA1008A00 Replacement for Lexium 05 Series: Smooth Migration & Legacy System Upgrade

The Schneider Electric MHDA1008A00 is a single-axis AC servo drive belonging to the Lexium 05 series — a platform widely deployed across packaging lines, CNC machining centers, textile machinery, and general-purpose motion control systems throughout the 2000s and 2010s. As Schneider Electric has progressively phased out Lexium 05 components in favor of the Lexium 32 and Lexium 62 platforms, many end-users and OEMs now face the challenge of sourcing genuine replacement units or executing a controlled migration to a compatible successor drive — all while minimizing production downtime and preserving existing wiring infrastructure.

TOPNLMS maintains verified stock of the MHDA1008A00 to support both direct like-for-like replacement and phased upgrade projects. Every unit undergoes pre-shipment functional testing and ships with a 12-month warranty.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful migration from a legacy Lexium 05 installation to a modernized servo system involves more than swapping the drive itself. In practice, field engineers working on MHDA1008A00 replacement projects typically need to address the following system components in parallel:

The BSH servo motor (e.g., BSH0702P01A2A) paired with the original MHDA1008A00 uses a SinCos encoder interface. If the motor is retained during a drive swap, the encoder cable and feedback connector pinout must be verified against the replacement drive’s CN2 port specification. In cases where the motor is also being upgraded to a BMH series unit, the encoder cable assembly will need to be replaced entirely.

On the communication side, the MHDA1008A00 typically operates on a CANopen network managed by a Schneider Electric Modicon M340 or Premium PLC (e.g., TSX P57 series). The CANopen node address and baud rate configured in the original drive must be replicated in the replacement unit using Lexium CT before the network is re-enabled. Where the host controller is a Modicon M580 or a third-party PLC with EtherCAT capability, a drive upgrade to the Lexium 32 platform may be warranted to take advantage of real-time fieldbus performance.

Power supply integrity is another critical factor. The MHDA1008A00 requires a stable 3-phase 200–240 V AC input. In control cabinets where the bus voltage has degraded or where a Phaseo ABL8 power supply module feeds the 24 V DC logic rail, both the drive input voltage and the logic supply should be verified before commissioning the replacement unit. A line filter (e.g., VW3A4401 EMC filter) is recommended to suppress conducted emissions, particularly in environments with variable-frequency drives or other switching loads on the same distribution panel.

For installations where the MHDA1008A00 is mounted in a compact control cabinet alongside a Schneider Electric TeSys motor starter or a Zelio Logic smart relay, physical space constraints must be assessed. The Lexium 05 drive occupies a specific width in the cabinet; any successor drive with a different form factor will require DIN-rail re-layout or panel modification.

Finally, if the existing system uses a Magelis XBTGT HMI terminal for operator interface and the drive parameters are displayed or adjusted via the HMI, the variable mapping in the HMI project will need to be updated to reflect any address changes introduced by the replacement drive’s parameter set. This is particularly relevant when migrating from Modbus RTU to CANopen or vice versa.

Retrofit Guidance FAQ

Q: Can I replace the MHDA1008A00 with a new unit without rewiring the motor cable?
A: Yes, in a like-for-like replacement scenario. The CN1 (power) and CN2 (encoder) connector pinouts are identical across MHDA1008A00 units of the same hardware revision. Verify the hardware revision label on the original drive before installation. If the motor cable uses a Schneider-standard BSH encoder connector, no rewiring is required.

Q: Do I need to re-upload the drive parameters after replacement?
A: Yes. The MHDA1008A00 does not retain parameters in a hot-swap scenario. Use Lexium CT to back up the parameter file from the original drive (if still functional) or reconstruct the parameter set from the machine documentation. Key parameters include motor type, encoder resolution, current limits, speed loop gains, and CANopen node ID.

Q: Is the MHDA1008A00 compatible with Modbus RTU communication from a Modicon M340 PLC?
A: Yes. The Lexium 05 series supports Modbus RTU over RS-485 as a standard communication option. Ensure the RS-485 termination resistor is correctly placed at the end of the daisy-chain and that the baud rate matches the PLC configuration (typically 19200 or 38400 bps).

Q: What is the physical footprint of the MHDA1008A00 and will it fit in my existing cabinet?
A: The MHDA1008A00 has a standard Lexium 05 single-axis form factor. Dimensions should be confirmed against the Schneider Electric product datasheet (reference: Lexium 05 Installation Manual). In most standard 600 mm deep industrial enclosures, the drive fits without modification when mounted on a standard 35 mm DIN rail.

Q: Can the MHDA1008A00 be used as a drop-in replacement for a failed MHDA1005A00 or MHDA1015A00?
A: Not directly. The MHDA suffix digits indicate the peak current rating (08 = 8 A, 05 = 5 A, 15 = 15 A). Substituting a different current-rated drive requires re-evaluation of the motor’s rated current and the application’s peak torque demand. Consult the motor datasheet and the Lexium 05 drive sizing guide before substituting across current ratings.

Q: What commissioning steps are required after installing the replacement drive?
A: (1) Verify input voltage and phase sequence. (2) Connect encoder and motor power cables. (3) Load saved parameter file via Lexium CT. (4) Perform auto-tuning if motor or load characteristics have changed. (5) Verify CANopen/Modbus communication with the host PLC. (6) Run a low-speed jog test before returning to full production speed.

Warranty Assurance

All MHDA1008A00 units shipped by TOPNLMS are covered by a 12-month warranty from the date of shipment. This warranty covers functional failure under normal operating conditions and excludes damage caused by incorrect installation, overvoltage, or physical impact.

Pre-shipment testing: Every unit is powered on and subjected to a functional verification check prior to dispatch. Test records are available upon request for quality-critical procurement processes.

Replacement support: In the event of a warranty claim, TOPNLMS will arrange a replacement unit or issue a credit note within the warranty period. Return shipping instructions and RMA documentation are provided promptly upon claim submission.

After-sales response: Our technical team responds to post-sale inquiries within 1 business day. Support covers parameter configuration guidance, wiring verification, and compatibility confirmation for your specific application.

Procurement assurance: TOPNLMS issues a commercial invoice and packing list with every shipment. Export documentation, including country of origin (France) and HS code, is prepared in compliance with international trade requirements. Stock availability is confirmed at time of order.