ENCLOSURE SOLUTIONS SUPPLEMENT RAPID ASSEMBLY PDU SYSTEMS
Rittal has developed four compact PDU (Power Distribution Units) systems for professional power distribution in IT racks which, it claims, will halve the time a system takes to assemble compared to screw-in PDUs. The system employs snap-in technology so not only is it very quick and easy to assemble, there is also no need for tools. Up to four PDUs can be mounted in the zero-U- space, (the space between the side of the 19in level and the side panel of an 800mm wide IT rack) so no height units for servers are wasted. Options include: • The ‘PDU basic’ which provides a robust and compact basis power distribution for the IT environment. The insert strip is easily connected and is immediately functional. • The ‘PDU metered’ variant has an internal web interface and an ethernet port so performance data on an entire IT rack can be cost-effectively monitored.
• The ‘PDU switched’ model builds on this functionality, allowing the user to turn individual output slots on and off via the web interface.
• Finally, the ‘PDU managed’ version takes this one step further. It has been developed specifically for use in high-end IT racks and offers power distribution with power measuring and monitoring functions for each individual output slot.
Low internal power consumption All the PDUs feature the standard international data centre CEE connectors with a 3m long connection cable and C13 and C19 slots. A country-specific variant is also available for the UK market. They are available in single-phase or three-phase versions; phase currents of 16A and 32A can be supported, depending on the type of PDU, which means electrical outputs of over 22 kW can be distributed by one rack PDU. Again, depending on the model involved, they also enable energy management by phase (feed) or even down to server-level (single energy measurement per output slot). All have a low internal energy consumption due to integrated bi-stable relays (in the switchable versions), as well as an energy-efficient OLED display with a power-save feature.
Automatic integration in DCIM software The complete PDU range can be easily integrated in a Data Centre Infrastructure Management (DCIM)-Software application such as Rittal RiZone. This is achieved automatically by the Autoscan function with Rittal’s
RiZone software. As a result, energy consumption is monitored efficiently and safely, and then logged. The intelligent power distribution bars can be easily configured and managed via a web interface. All measurements such as voltage, phase and neutral currents, as well as active and apparent power, active energy and power factor, are displayed on a web page. Suitable alarm limits can be clearly defined so that the administrator can react quickly in an emergency. The Computer Multi Control (CMC) III monitoring platform, with its own CAN-bus function and (optionally) up to four sensors, can also be connected up to monitor temperature, humidity, and access. The sophisticated user administration system protects the power distribution from unauthorised access. The four systems together extend Rittal’s current product range of modular PSMs (power system
modules) to include non-modular PDU types. Rittal
www.rittal.co.uk Enter 242 REDUCE DOWNTIME & FAILURE
Running manufacturing automation systems at high temperatures will have a major negative impact. By not keeping their drives at or close to their optimum operating temperature, manufacturers risk huge costs when the production line grinds to a halt as a result of system failure. A typical electrical component’s life expectancy is approximately
halved for every 10˚C increase in its ambient temperature. Controlling the temperature within enclosures is therefore critical. A Rittal RiAssure3 survey will identify the likely risk of a system overheating. It will review any existing cooling solution and determine how suited it is to that particular environment. It will then provide recommendations around remedial action. Here is a basic checklist for reviewing climate controls in a manufacturing automation system: • Equipment tripping or failing due to high temperatures which is having an impact on production lines • Enclosures which feel hot to the touch • Enclosure doors regularly left open or a need for large fans • An inadequate chilling of process fluids • Or simply the opportunity of a health check for the cooling solution. As summer approaches, tackling the issue now could be a timely call.
Rittal
www.rittal.co.uk Enter 243
IT INFRASTRUCTURE Enter 102
SOFTWARE & SERVICES
www.rittal.co.uk
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