SITOP DC UPS modules – reliable 24-V supply even when the power fails

DC UPS modules for a reliable 24-V supply even when the power fails – an important component of optimal, all-around protection

Every power failure can bring a plant to a standstill and cost a lot of time and money. The SITOP DC UPS systems with different types of energy storage and communications interfaces offer solutions to meet every requirement for buffering times and plant integration. The maintenance-free DC UPSs with capacitor technology deliver reliable 24 V DC for up to a period of minutes, whereas the DC UPSs with battery modules ensure reliable 24 V DC for up to a period of hours.   The SITOP UPS systems differ not only in their storage capacities and their performance but also in their functionality: as with the SITOP UPS1600’s ability to communicate via Ethernet/PROFINET and its complete integration in TIA and the automation system to be backed up.

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SITOP DC UPS with capacitors

SITOP DC UPS with capacitors

Reliable bridging for up to a period of minutes

These high-capacitance, double-layer capacitors (Ultracaps) store sufficient energy to shut down PC-based systems safely. Depending on the load current and DC UPS design, they permit bridging for up to a period of minutes.

  • Version extendable to 20 kWs for longer buffering times
  • Totally maintenance-free, double-layer capacitors
  • No battery replacement necessary thanks to capacitors
  • Fast charging time
  • Long service life even at high temperatures
  • No ventilation needed in installation location
  • Communication via contacts or USB

SITOP DC UPS with battery modules

SITOP DC UPS with battery modules

Reliable bridging for up to a period of hours

Applications whose processes must continue to be supplied with power and whose measurement data must continue to be collected or communication networks maintained during power failures require high-capacity energy storage units. The SITOP DC UPSs with maintenance-free lead-acid or lithium batteries offer a long buffering time for a high level of security during power failures. Depending on the power requirements, they can supply energy for up to a period of hours.

  • SITOP UPS1600 DC UPS modules with 24 V and up to 40 A and SITOP UPS1100 battery modules up to 12 Ah (72 Ah total)
  • Maintenance-free SITOP UPS1100 battery modules
  • Intelligent battery management for optimal charging and continuous monitoring
  • All diagnostic data and alarms available via USB and Ethernet/PROFINET
  • Monitoring with integrated Web server
  • Configuration and monitoring via SITOP Manager
  • Full system integration in TIA
  • Direct integration into SIMATIC PCS 7 via the SITOP library
  • Certified and integrated OPC UA server facilitates flexible, multi-vendor communication with other systems (versions with Ethernet/PROFINET)

SITOP PSU8600 with DC UPS

SITOP PSU8600 with SITOP BUF8600 and SITOP UPS8600 and battery modules

Bridging short and longer power failures up to a period of hours – with the modular SITOP PSU8600 power supply system

The SITOP PSU8600 base units, combined with integrated buffer and DC UPS modules with appropriate battery modules, can be used to protect against power dips on the line side and thus to bridge power failures lasting up to a period of hours. If necessary, these modules make it possible to shut the plant down safely and selectively. For most power interruptions, however, the bridging time is sufficient to allow the plant to continue operating without disruption.

Find out more about the SITOP PSU8600 power supply system:

All-around protection

Optimally equipped for a 24-V uninterruptible power supply

Even power failures lasting seconds can disrupt sensitive processes. To successfully bridge power failures for a period of minutes or hours, and thus prevent data losses, production outages, damage to products, etc., SITOP offers you a variety of different DC UPS modules. With SITOP, you’re optimally equipped for a 24-V uninterruptible power supply.

Guarantee reliable bridging …

Bridging power failures for a period of minutes – with a SITOP DC UPS with capacitors

In many PC-based automation solutions, serious damage from a power failure can be prevented by bringing the plant to a defined state. It generally takes about one minute to back up the operating data necessary for this purpose and the subsequent controlled shutdown of the PC. The SITOP UPS500’s double-layer capacitors provide sufficient power for this to be accomplished.

Powerful, totally maintenance-free, and usable in a variety of applications

The high-capacitance, double-layer capacitors (Ultracaps) store sufficient energy to shut down PC-based systems safely. Fast charging times ensure that buffering is available quickly once power is restored. Communication with the automation computer is easily implemented via the device’s USB interface.

And in terms of maintenance, SITOP DC UPSs leave nothing to be desired: even at a high ambient temperature, the capacitors have an extremely long service life. Because no maintenance or replacement of the energy storage unit is required, the SITOP UPS500 pays for itself in a short time. And because the capacitors don’t emit any gas, no ventilation of the control cabinet is required.

Whether for use inside or outside a control cabinet – SITOP offers you the right device version. The buffering time of the SITOP UPS500S for DIN rail mounting can be extended by adding expansion modules. 

Your benefits with a SITOP DC UPS with capacitors

  • Versions expandable to 20 kW for longer buffering times
  • IP65 version for environments with high levels of contamination and humidity
  • Capacitors eliminate battery replacement
  • Long service life even at high temperatures
  • No ventilation of the installation site required
  • Communication via contacts or USB

Long-term buffering of a power failure – thanks to a SITOP DC UPS with battery modules

Applications whose processes must continue to be supplied with power and whose measurement data must continue to be collected or communication networks maintained during power failures require high-capacity energy storage units – like the SITOP DC UPS modules with maintenance-free lead-acid or lithium batteries. They offer a long buffering time and, depending on the power requirements, can supply energy for a period of hours. They also provide unique opportunities for diagnostics and system integration.

Highly available and extremely communicative

The SITOP DC UPS modules with battery modules ensure continued operation, even over a period of hours, depending on battery capacity and power requirements. Sophisticated battery management ensures optimal battery charging. Active battery monitoring even tests the age of the battery, making a precautionary battery replacement unnecessary. Thanks to the SITOP UPS1600 DC UPS, the charging process for the UPS1100 battery modules is temperature-controlled, which also extends the service life of the battery modules.

SITOP UPS1600 also offers comprehensive functions and communicates via USB, Ethernet/PROFINET, and OPC UA. Complete integration into the TIA Portal simplifies engineering. For the open communication via Ethernet, configuration and diagnostics are conveniently performed with the help of the SITOP Manager: this PC software with a Web browser user interface permits simple parameterization: for example, for safely shutting down multiple PCs.

Via PROFINET, the SITOP UPS1600 can even be fully integrated in TIA. Its integrated Web server enables remote monitoring.

Via their OPC UA server, the SITOP UPS1600 modules can communicate with PCs and controllers from different vendors – thanks to the open communication standard. The open interface permits parameterization and diagnosis of the uninterruptible power supply.

Note: To ensure the secure operation of a plant or machine, it’s also necessary to take appropriate protective measures and integrate the automation and drive components into a comprehensive, state-of-the-art, industrial security concept. For more information, visit www.siemens.de/industrialsecurity.

Your benefits with a SITOP DC UPS with battery modules

  • SITOP UPS1600 DC UPS modules with 24 V and up to 40 A and UPS1100 battery modules up to b 12 Ah (72 Ah total)
  • UPS1100 5 battery module, 5 Ah in lithium technology (LiFePo) with constant power output and voltage for the entire discharge range and a long service life, even at a high ambient temperature
  • Monitoring of operational readiness, battery feed, and battery charge status
  • Long battery service life, thanks to battery management
  • Communication via contacts, USB or two Ethernet/PROFINET ports
  • Configuration and monitoring via SITOP Manager
  • Simple engineering and comprehensive diagnostics in the TIA Portal
  • OPC UA server for flexibly integrating a variety of automation and HMI systems

Bridging – with the SITOP PSU8600 with UPS8600 and battery modules

Reliably bridge longer power dips on the line side or, if necessary, shut the plant down safely and selectively: the SITOP PSU8600 power supply system can be upgraded to an uninterruptible DC power supply by means of integrated buffer, DC UPS, and battery modules.

Bridging longer power failures lasting from minutes to hours with full system power

The SITOP PSU8600 power supply system can be equipped to bridge line-side voltage dips for up to a period of hours by mounting up to two SITOP BUF8600 buffer modules or SITOP UPS8600 DC UPS modules side by side with up to five BAT8600 battery modules per DC UPS module. To maximize the buffering time for especially important loads, individual outputs of the SITOP PSU8600 can also be selectively switched off. In most cases, this allows the plant to continue operating during a power failure without disruption.

Connection to a PROFINET- and OPC UA-capable SITOP PSU8600 base unit enables the SITOP UPS8600 DC UPS module to communicate with almost any automation system: for example, in order to signal the operating mode, charge status, backup readiness, or the need for battery replacement.

The battery modules have lead-acid (PB) or lithium iron phosphate (LiFePO4) batteries. Smart battery management permits temperature-controlled charging, which ensures a long battery service life.

Your benefits with a SITOP DC UPS with battery module

  • UPS8600 module for charge/discharge control with up to five BAT8600 battery modules of the same construction
  • Simple connection of UPS8600 via the System Clip Link, a connector for system data and power supply
  • Smart battery management for optimal battery service life
  • BAT8600 battery modules with maintenance-free lead-acid or lithium iron phosphate (LiFePO4) batteries
  • Commissioning, engineering, and monitoring via SITOP Manager
  • Comprehensive diagnostic and maintenance information is available via PROFINET and can be directly evaluated in SIMATIC S7 and visualized in SIMATIC WinCC
  • Convenient configuration and diagnosis in the TIA Portal
Find out more about the uninterruptible power supply:

SITOP DC UPS brochure

Downloads, support, services

Everything you need to know about SITOP DC UPS

Download brochures and documentation with more details on all-round protection with SITOP DC UPS systems. Support links take you to system-specific FAQs, manuals, product notes, and technical data. Discover our range of helpful services at the same time.

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Proposed solutions for your queries and direct access to our experts in Technical Support

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Logistical handling of returned goods from service processes

Central returns processing at the Service Logistics Center in Erlangen

Return delivery address: Siemens AG Retouren Center c/o Geis Industrie-Service GmbH, Tor 1–4, Kraftwerkstrasse 25a, 91056 Erlangen

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Would you like to know more about the possibilities of the SITOP DC UPS for the all-around protection of your 24-V power supply? Just talk to our experts. They’ll be happy to assist you.

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