How do I identify the correct HDD unit?
Use the complete type code, material number and revision from the nameplate. Clear photos of the label, full unit and connections help verify the configuration.
Drives, Amplifiers & Controllers / Product family
HDD DIAX04 Drive Controllers
DIAX04 drive controllers matched by current, cooling, command communication, firmware, motor feedback and installed plug-in modules.
Inventory record · verify stock
Model groups
Choose the series from the tag.
Manufacturer document trail
Rexroth DIAX04 HDD and HDS Drive Controllers, 2nd Generation — Commissioning Manual
Factory documentation for HDS ratings, modules, connection points, installation and second-generation hardware.
Use the document reference to check product-family context and edition availability. The physical nameplate, material number, revision and installed machine still govern any stock, repair or compatibility decision.
View manufacturer reference →Technical references / HDD
Looking up a displayed fault?
Find related diagnostic indexes and troubleshooting references. Check the firmware and document edition; a family match alone does not confirm applicability.
Common questions
Before you remove the unit.
Does Indramat.com show HDD stock?
An inventory-match status means Litco records contain this family. Call or submit the complete code so current stock, condition and the exact unit can be verified.
Can Litco repair or exchange HDD equipment?
The same intake can be routed for repair evaluation, exchange or replacement. Include the machine, fault symptoms and complete hardware configuration.
Availability · repair · exchange
Send the complete code.
The suffix can change electrical and mechanical compatibility. Include every character and a clear nameplate photo.