Description

The Siemens 6ES5 930-8MD11 (PS930) is a dedicated power supply module engineered for the Simatic S5-090, S5-095, and S5-100 controller families. This unit converts a 230 VAC input voltage into a regulated 24 VDC output, providing a consistent 1 A current capacity to support small-scale automation logic. It is widely utilized in distributed control architectures, light manufacturing equipment, and environmental monitoring systems where reliable low-power DC delivery is essential. By maintaining high voltage stability and filtering transient line noise, this module plays a key role in preventing spurious controller resets and system failures, thereby optimizing uptime in compact industrial automation deployments.

Features

• Designed for seamless integration with Simatic S5-090, S5-095, and S5-100 series controllers.
• Integrated switched-mode power converter for high energy efficiency and effective thermal management.
• Built-in protection mechanisms against short-circuit events and over-voltage conditions.
• Low ripple voltage output to ensure stable signal processing and logic execution.
• Compact modular housing optimized for standard control cabinet mounting and convection cooling.

Applications

This power module is primarily used in legacy Simatic S5 automation systems, including small-scale machine control, distributed I/O stations, and specialized environmental monitoring setups requiring stable 24 VDC power.

Technical Specifications

Installation Guidelines

• Ensure the control cabinet power is fully disconnected before installing or removing the module from the S5 backplane.
• Verify that the input voltage matches the 230 VAC nominal rating to prevent damage.
• Maintain adequate clearance around the module to allow for natural convection cooling; do not obstruct the ventilation slots.
• Ensure the module is firmly seated in the S5 rack to maintain proper electrical contact with the backplane bus.
• Use appropriate shielded cabling for DC output distribution to minimize electromagnetic interference (EMI) in sensitive control environments.
• Handle with standard ESD precautions to protect internal electronic components.

FAQ

Is the Siemens 6ES5 930-8MD11 compatible with S5-115U systems?

No, this specific PS930 module is designed specifically for the S5-090, S5-095, and S5-100 series. It is not intended for use in the larger S5-115U or S5-135U/155U rack systems.

Does this module require external cooling?

The module is designed for natural convection cooling. Ensure that the installation environment remains within the specified 0 deg C to 60 deg C operating range and that airflow is not restricted by adjacent components or wiring ducts.