Siemens SITOP DC UPS 6EP1933-2EC51 User Manual

© Siemens AG, 2009 1/18
Considerations for Use
of the SITOP DC UPS Module
6A without interface (6EP1931-2DC21)
6A with serial interface (6EP1931-2DC31)
6A with USB interface (6EP1931-2DC42)
15A without interface (6EP1931-2EC21)
15A with serial interface (6EP1931-2EC31)
15A with USB interface (6EP1931-2EC42)
40A without interface (6EP1931-2FC21)
40A with USB interface (6EP1931-2FC42)
500S (15A / 2.5kWs capacitor) (6EP1933-2EC41)
500S (15A / 5kWs capacitor) (6EP1933-2EC51)
500P (15A / 5kWs capacitor) (6EP1933-2NC01)
500P (15A / 10kWs capacitor) (6EP1933-2NC11)
Release 2

Siemens SITOP DC UPS 6EP1933-2EC51 Specifications

General

Brand	Siemens
Model	SITOP DC UPS 6EP1933-2EC51
Category	Control Unit
Language	English

Summary

1. Principle Functions

1.1 Normal Mode

1.2 Buffer Mode

Describes the UPS operation during power failures.

2. Settings

2.1 Setting the Cut-in Threshold

Configuration of the voltage level for switching to battery.

2.2 Setting the End-of-Charge Voltage

Configuration of the battery charging voltage.

2.3 Setting the Charging Current

Configuration of the battery charging current.

2.4 Setting the Buffering Time

Configuration of the duration of battery backup.

4. Communication with the PC

4.1 Serial Connection

4.1.2 USB Connection

5. Operating Modes

5.1 Long Power Failure in Devices without an Interface

5.3 Long Power Failure in Devices with an Interface

6. Battery Modules

6.1 Battery Module Selection

6.2 Discharge Characteristics for Lead-Gel Battery Modules

Presents discharge curves for lead-gel battery modules.

6.3 Instructions for the Characteristic Field/Selection of the Battery Capacity

Instructions for calculating battery capacity using characteristic fields.