Company helps customers perform relay upgrades
A
Pilz Automation Technology product story
Edited by the Engineeringtalk editorial team
Oct 18, 2007
A small number of PNOZsigma relays are replacing a very wide range of Classic relays, which will significantly simplify ordering and stockholding for customers.
Pilz will discontinue the PNOZ Classic range from 1st February 2009.
There has already been an announcement about replacements for the PNOZ 1 and PNOZ V Classic relays and now Pilz is publishing a document to help customers migrate from Classic relays to PNOZsigma relays.
The first section is a straightforward checklist of PNOZclassic relays and their supply voltages to enable users to identify which PNOZsigma relays to use as replacements.
If an additional PNOZsigma expansion module is required to deliver the same functionality as the Classic relay, the expansion module options are also identified.
A small number of PNOZsigma relays are replacing a very wide range of Classic relays, which will significantly simplify ordering and stockholding for customers.
By far the bulk of the publication is devoted to application examples.
These show how the Sigma relays need to be connected in order to replicate the functions performed by the Classic relays.
Terminal designations are clearly shown, so users can see how to modify their wiring schematics and, in the event of having to replace a relay in an existing control system, rewire the relay itself.
If relays are swapped on a 'like for like' basis during machine repairs, installers should ensure that they comply with the sections of PUWER (provision and use of work equipment regulations) relating to control systems.
Any physical changes to control systems must be properly documented.
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