PNOZsigma product range - Maximum function in minimum width

The new compact safety relays PNOZsigma combine Pilz's many years of experience with today's very latest safety technology. Patented features within the new PNOZsigma help make the units more compact than ever before. Typically the relays deliver the same functionality in 50 per cent of the space required previously, and it is now possible to install six safety outputs within a width of just 30mm. Despite their small physical size, diagnostics are improved with front panel LEDs indicators.

The PNOZsigma

• is more flexible,
• is quicker,
• saves more space,

and therefore more efficient.

PNOZsigma monitors safety-related functions such as E-STOP, safety gate, light curtain or two-hand control on independent stand-alone machines. Just a few unit types cover a wide range of applications.

Your benefits at a glance:

Few unit types - many safety functions - reduced stockholding

Just a few unit types from PNOZsigma are enough to cover a wide range of applications: for example, you can use the PNOZs5 to monitor an E-STOP function, a safety gate or a light curtain. When a safety gate has been opened and closed, for example, operating mode selector switches can be used to select whether a machine has a monitored or automatic reset. The benefit of this multifunctionality: your stock only needs to include a few unit types, which can be used in a variety of applications.

Up to 50% space saving in the control cabinet

The multifunctionality of the PNOZsigma is compressed into a compact enclosure. Housing widths start from just 12.5mm. They are up to 50% narrower compared with standard safety relays on the market. The benefit is obvious: narrower widths save space within the control cabinet, and therefore costs!

Rapid commissioning and expansion

Using PNOZsigma can reduce the amount of wiring by up to 20% - thanks to innovative connection technology:

• Plug-in connection terminals - cabling can be pre-made
• Innovative spring-loaded technology with individual operation of the terminal chambers
• Just "click" to expand the contacts via jumpers

Selectable operating modes for maximum flexibility

Using operating mode selector switches you can set your PNOZsigma unit to suit your own process and safety requirements:

• Selectable reset modes: manual, automatic, monitored, with start-up testing
• Selectable operating mode: with or without detection of shorts across contacts
• Selectable time delays between 0-300 seconds
• Selectable timer functions: delay-on energisation, delay-on de-energisation, pulsing

High availability and diagnostics in seconds

High switching capabilities up to 12 A guarantee high availability and long service life. And PNOZsigma can also handle safely the switching of the smallest loads, from 10mA. Thanks to universal power supplies from 48 - 240 V, this new safety relay is also resistant to mains fluctuations. When servicing, diagnostics are available quickly at a glance: each PNOZsigma has 6 descriptive LED indicators displaying switch and fault conditions. It is not usually necessary to connect external measuring devices.

Protection from manipulation and contamination

To protect against manipulation and contamination, all the setting elements are protected by a cover flap, which can also be sealed if necessary.

Please click on the links to the right for more information.