Pilz PNOZ s7.1 - Safety Features

PNOZ s7.1
Operating Manual PNOZ s7.1
21865-EN-11
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– Switch status of the safety contacts
– Fault
} Plug-in connection terminals (either spring-loaded terminal or screw terminal)
} See order reference for unit types
Safety features
The unit meets the following safety requirements:
} The contact expansion module expands an existing circuit. As the output relays are mon-
itored via the base unit's feedback loop, the safety functions on the existing circuit are
transferred to the contact expandsion module.
} The safety function remains effective in the case of a component failure.
} Earth fault in the feedback loop:
Detected, depending on the base unit that is used.
} Earth fault in the input circuit:
The output relays de-energise and the safety contacts open.