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Start-Up and Restart Inhibit
[
abc
]
• Start-up inhibit is activated along with the
restart inhibit function. When supply power is switched on
(e.g. after a power failure), the safety outputs (OSSD) remain in the off state. Acknowledgement is
accomplished by activating an acknowledgment key.
• Restart inhibit prevents a machine from starting back up automatically after the safety field has been
interrupted. The machine can only be re-enabled by activating an acknowledgment key.
NOTE!
• The acknowledgment key must be mounted outside of the danger zone.
• The user must be able to see into the danger zone in an unobstructed fashion when
activating the acknowledgement key.
Contactor Monitoring
[
abc
]
• Contactor monitoring is a function for which switching performance of the contacts at an external relay is
dynamically monitored. The contacts must close fully within a specified period of time.
• Switching devices equipped with positively-driven NC contacts are a prerequisite for this function.
Signal Output
[
abc
]
• The signal output is a semiconductor output for auxiliary functions without safety monitoring.
• Additional read-out function: acknowledgment prompt.
Summary of Contents for SEMG412
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