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This Siemens enabling module provides secure access control for S5 automation systems. The Siemens 6ES5958-4UA11 manages system startup and shutdown sequences safely. Its dedicated design prevents unauthorized operations during critical production runs. This module ensures proper interlocking between safety devices. The Siemens 6ES5958-4UA11 integrates seamlessly with standard S5 rack configurations.
Physical Dimensions and Mounting Specifications
The module measures 232 mm in height and 25 mm in width. Its overall depth reaches 160 mm including the front connector. This unit weighs approximately 0.52 kilograms for stable rack installation. The housing supports standard 35 mm DIN rail mounting in S5 racks. The Siemens 6ES5958-4UA11 features a 20-pin front connector for all signal wiring. This connector accepts conductor cross-sections from 0.5 mm² to 2.5 mm².
Enabling Functions and Control Interfaces
This module offers two enabling input channels for redundant safety monitoring. Each channel accepts 24 V DC signals from safety switches. The enabling output provides a 24 V DC signal for system activation. A built-in timer delays the enabling signal by 50 milliseconds. The Siemens 6ES5958-4UA11 includes a manual override switch for maintenance operations. Four digital inputs monitor external safety device status. Two digital outputs report enabling status to the central controller.
Electrical Characteristics and Energy Storage
The module draws a typical current of 90 mA from the 24 V DC supply. It includes two relay contacts for enabling outputs with 2 A capacity. An internal 470 µF capacitor provides energy storage for brief interruptions. This capacitor ensures stable operation during momentary power dips. The Siemens 6ES5958-4UA11 incorporates optocoupler isolation for all input channels. This isolation withstands 500 V AC between logic and field circuits. A front panel LED indicates the enabling status and fault conditions.
Detailed Specification Table
| Parameter | Specification |
|---|---|
| Dimensions (H x W x D) | 232 mm x 25 mm x 160 mm |
| Weight | Approx. 0.52 kg |
| Enabling Input Channels | 2 (24 V DC) |
| Enabling Output | 24 V DC (relay) |
| Digital Inputs | 4 (monitoring) |
| Digital Outputs | 2 (status) |
| Enabling Delay Time | 50 ms |
| Current Consumption | 90 mA (typical) |
| Relay Contact Rating | 2 A |
| Energy Storage Capacitance | 470 µF |
| Isolation Voltage | 500 V AC |
| Operating Temperature | 0°C to 60°C |
Application and Configuration Guidelines
Mount this module in any available slot of the S5 rack system. Connect the safety device outputs to the enabling input channels. Wire the enabling output to the system’s main contactor circuit. The Siemens 6ES5958-4UA11 operates effectively between 0°C and 60°C. Set the enabling delay time using the onboard potentiometer. Test the manual override function during maintenance procedures. Monitor the front panel LED for enabling status confirmation.