SIEMENS 6EP1931-2EC42 Used Working DC UPS

Product Overview

The Siemens 6EP1931-2EC42 is a high-performance SITOP DC UPS Module (15 A), designed to provide reliable backup power for 24V DC industrial automation systems. This module is an essential component for ensuring high system availability, protecting critical data and processes during power failures or mains fluctuations. When paired with external battery modules, it enables the controlled shutdown of PLCs and industrial PCs (IPCs) or maintains operation through short-term outages. As a Used Working unit, it offers a robust solution for maintaining power integrity in SITOP-based architectures.

Key Features

• 15 Amp Output Capacity: Capable of delivering up to 15 Amps of continuous current to the connected 24V DC loads during both normal and buffered operation.
• USB Interface: Equipped with an integrated USB port for direct communication with industrial PCs, enabling automated shutdown routines and status monitoring via SITOP software.
• Intelligent Battery Management: Features sophisticated charging and monitoring logic to optimize the service life of connected battery modules and provide early warning of battery failure.
• Adjustable Buffering Time: Includes rotary switches to set the desired buffering duration or to select "Maximum" time until the battery reaches its deep-discharge limit.
• Comprehensive Diagnostics: Front-panel LED indicators provide real-time status for "Normal Operation," "Buffering Mode," "Battery Charge State," and "Alarm/Fault" conditions.
• Remote Monitoring: Includes potential-free relay contacts for signaling the operating state (e.g., "On Battery" or "Battery Ready") to a master PLC or SCADA system.

Item Condition (Used Working)

• Functional Status: Used Working. This DC UPS module has been bench-tested. The charging circuit, output regulation, and USB communication interface have all been verified as functional.
• Physical State: Clean industrial condition. The metal DIN-rail mounting clip is secure, and all screw terminals are in good condition without signs of electrical arcing.
• Technical Integrity: The internal logic accurately detects the transition from mains to battery power. The unit is ready for immediate integration into your 24V DC power scheme.
• Note: Professional installation is recommended. This listing is for the UPS Module only; compatible lead-acid battery modules (e.g., 6EP1935-6ME21) and 24V DC power supplies must be sourced separately.

Package Includes

1. 1 x Siemens 6EP1931-2EC42 SITOP DC UPS Module (15A with USB)