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

Technical Overview

The 6SE7038-6GL84-1JA1 is a specialized PSU2 power supply module belonging to the Siemens SIMOVERT MASTERDRIVES series. Specifically engineered for high-performance frequency converters and large-scale drive systems, this module provides critical internal DC power regulation. It is designed to integrate seamlessly into Design J through M drive chassis, providing the stabilized voltages required for control electronics, pulse encoders, and cooling fans. As a modular component within the MASTERDRIVES architecture, the 6SE7038-6GL84-1JA1 ensures that the drive's intelligence layers remain isolated from the high-power AC/DC bus transients common in heavy industrial automation environments.

Detailed Technical Specifications

The following parameters define the physical and operational profile of the 6SE7038-6GL84-1JA1:

• Manufacturer: Siemens (Automation & Drives)

• Model Number: 6SE7038-6GL84-1JA1

• Product Type: Power Supply Module (PSU2)

• Series Platform: SIMOVERT MASTERDRIVES Vector Control (VC) / Motion Control (MC)

• Chassis Compatibility: Supports Siemens Designs J, K, L, and M

• Mounting Configuration: Internal panel-mounted within the drive frame

• Lifecycle Status: Phase-out initiated October 6, 2011 (Legacy Support available)

• Environmental Compliance: RoHS-compliant construction

• Physical Dimensions: 27 cm (H) x 29 cm (W) x 8 cm (D)

• Unit Weight: 1.32 kg (2.91 lbs)

• Cooling Requirements: Forced air (via integrated drive cabinet fans)

System Role and Integration

The 6SE7038-6GL84-1JA1 acts as the auxiliary power backbone for large Siemens inverter units. In the MASTERDRIVES ecosystem, the PSU2 module is responsible for converting the high-voltage DC link or external AC supply into low-voltage DC rails. This stable power is essential for the drive's CPU, communication boards (such as CBP2 for Profibus or SLB for Simolink), and the gate-driver circuits that modulate the IGBT power stage. Its robust design is tailored for 24/7 operation in sectors like steel milling, paper manufacturing, and marine propulsion where drive downtime translates to significant production losses.