Power supplies SITOP power LOGO!Power Catalog K T 10.1 2004
Power supplies SITOP power LOGO!Power Catalog K T 10.1 2004
Power supplies SITOP power LOGO!Power Catalog K T 10.1 2004
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DC UPS<br />
<strong>SITOP</strong> <strong>power</strong> · Standard 24 V<br />
Uninterruptible <strong>power</strong> <strong>supplies</strong><br />
■ Overview<br />
By combining a DC UPS module with at least one 24 V battery<br />
module and a <strong>SITOP</strong> <strong>power</strong> supply unit, longer <strong>power</strong> failures<br />
can be bridged without any interruption.<br />
This combination is used, for example, in machine tool manufacture,<br />
in the textile industry, with all types of production lines and<br />
filling systems, and in conjunction with 24 V industrial PCs. The<br />
negative effects which frequently result from <strong>power</strong> failures can<br />
thus be prevented.<br />
For nonstop use in the event of <strong>power</strong> failures, Siemens offers<br />
the uninterruptible <strong>power</strong> <strong>supplies</strong><br />
• DC UPS 6 A<br />
• DC UPS 15 A<br />
• DC UPS 40 A<br />
as well as the battery modules<br />
• 1.2 Ah<br />
• 3.2 Ah<br />
•7 Ah<br />
•12 Ah<br />
• 2.5 Ah (high-temperature battery).<br />
9<br />
■ Selection table for battery modules with <strong>power</strong> failure buffer times<br />
Load current Battery module 1.2 Ah Battery module 3.2 Ah Battery module 7 Ah<br />
(6EP1935-6MC01) (6EP1935-6MD11) (6EP1935-6ME21)<br />
Note:<br />
• The <strong>power</strong> failure buffer times are based on the discharge period<br />
of the completely charged battery module down to a battery<br />
voltage of 21 V; ambient temperature 25 °C.<br />
• With the DC UPS 40 A module, high electronically limited peak<br />
currents (120 A for approx. 12 ms, up to 40 A for several minutes<br />
depending on the battery capacity) are automatically delivered<br />
in the event of increased load current requirements<br />
(e.g. when switching on incandescent lamps, contactors with<br />
DC autotransformer winding, DC motors, DC/DC converters,<br />
electronic modules with high input capacitance). To achieve<br />
this, at least two battery modules of 7 Ah or more must be connected<br />
in parallel.<br />
Battery module 12 Ah<br />
(6EP1935-6MF01)<br />
1 A 30 min 2.5 h 6 h 10 h 2 h<br />
2 A 11 min 45 min 2.5 h 4 h 45 min<br />
4 A 2 min 20 min 45 min 2.5 h 20 min<br />
6 A 1 min 10 min 30 min 1 h 13 min<br />
8 A - 4 min 20 min 40 min 9 min<br />
10 A - 1.5 min 15 min 30 min 7 min<br />
12 A - 1 min 10 min 25 min 5.5 min<br />
14 A - 50 s 8 min 20 min 4.5 min<br />
16 A - 40 s 6 min 15 min 4 min<br />
20 A - - 2 min 11 min -<br />
Battery module 2.5 Ah<br />
(6EP1935-6MD31)<br />
• Following a <strong>power</strong> failure, the battery module is automatically<br />
disconnected from the loads electronically and rapidly recharged<br />
at 0.2/0.4 A (DC UPS 6 A module), at 0.35/0.7 A<br />
(DC UPS 15 A module) or at 2 A (DC UPS 40 A module) (V/I<br />
characteristic with 27 V or 27.3 V end-of-charge voltage).<br />
■ DC UPS software<br />
The DC UPS 6 A and 15 A modules are optionally available with<br />
a serial interface or USB interface. All relevant messages concerning<br />
the status of the DC UPS can then be sent to a PC (e.g.<br />
SIMATIC PC). The <strong>SITOP</strong> DC UPS software, with which the signals<br />
sent from the DC UPS module can be processed further on<br />
the PC, is very easy to use. In monitoring mode, the statuses of<br />
the DC UPS module are visualized on the PC. The safe shutdown<br />
in the event of a <strong>power</strong> failure and the automatic restart of the PC<br />
are supported. It is also possible to freely define the responses<br />
to the various operating states of the DC UPS module, permitting<br />
extremely flexible incorporation into many different applications.<br />
The software executes under the WinNT 4.0, Win2000 and<br />
WinXP operating systems. It is available as freeware on the<br />
<strong>SITOP</strong> Internet site for free downloading.<br />
Monitoring and configuration windows of the <strong>SITOP</strong> UPS software<br />
9/2<br />
Siemens KT<strong>10.1</strong> · <strong>2004</strong>