Psu2 Power Supply Unit/Board 6SE7038-6GL84-1JA1 6SE7 038-6GL84-1JA1 6SE7O38-6GL84-1JA1 6SE70386GL841JA1

Siemens 6SE7038-6GL84-1JA1 PSU2 Power Supply Module

The Siemens 6SE7038-6GL84-1JA1 is a PSU2 power supply module intended for devices with designs J through M. In a drive system, a power supply module sits close to the internal control and auxiliary power path, so this part is best treated as a defined replacement for the original PSU section rather than as a generic drive PCB. Siemens MASTERDRIVES documentation also identifies the X9 terminal strip as belonging to PSU2 types J to M, which supports the design-range match for this module.

For product-page use, the safest way to describe this model is as a drive power supply module for design classes J to M.

That makes selection more accurate, especially in cabinets where the installed unit family is already known and the replacement must keep the original hardware structure intact.

Product Data

Application Scenarios

This module is suitable for board-level repair of Siemens drive units that already use the PSU2 layout for designs J through M.

In practical service work, it is most relevant when the installed drive remains mechanically and electrically intact, but the original PSU module needs to be restored with the same part family and design range.

The value here is exact fit within the existing hardware structure, not broad cross-series substitution.

Why Choose This Product

6SE7038-6GL84-1JA1 is a strong match when the installed drive is already built around the PSU2 architecture and the replacement has to stay within the J-to-M design range.

A power supply module at this level affects the internal supply path of the drive, so exact designation matching is more useful than relying on a visually similar spare board.

FAQ

Q1. What type of module is 6SE7038-6GL84-1JA1?
It is a PSU2 power supply module for devices with designs J through M.

Q2. What does this module do in the system?
Its role is to serve the internal power-supply section of the drive. MASTERDRIVES documentation ties PSU2 to the relevant terminal section for types J to M, which indicates that this module belongs to the internal supply architecture rather than to a communication or operator interface section.

Q3. What should be checked when selecting 6SE7038-6GL84-1JA1?
The key checks are the exact order number, the PSU2 designation, and the design class of the installed unit.

For this part, the J through M range is one of the main compatibility points.

Q4. How should the key specification be understood?
The critical identifier is not an output rating in isolation, but the combination of PSU2 plus designs J through M.

That pairing tells you which internal drive platform this module belongs to.

Q5. How should faults be diagnosed before replacing this module?
A practical diagnosis starts by separating a power-supply section fault from a downstream inverter or control fault.

If the drive family and design class already match PSU2 J–M hardware, and the issue is traced to the internal supply path rather than the motor side or external control signals, this module becomes a stronger candidate. 

That diagnostic approach is an inference from the module’s verified PSU role and design-range placement.