Function description
Operating Manual PSEN sg2c-5CCLLE
1004172-EN-02
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4
Function description
The interlocking and guard locking system prevents the safety gates to the danger zone
from opening while the hazardous machine is switched on.
There is a high signal (safety gate closed and locked) at safety outputs X1-3 and X1-4 if the
following conditions are met simultaneously:
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Inputs X2-3 and X2-4 are high and
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The bolt tongue is within the response range and
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The guard locking element is engaged in the bolt tongue and
}
The escape or auxiliary release pin is in the correct position.
Signal output X1-9 is high if:
}
The bolt tongue is within the response rang
There is a low signal (safety gate open and hazardous machine function interlocked) at
safety outputs X1-3 and X1-4 if the following occurs:
}
Inputs X2-3 or X2-4 are low or
}
The guard locking element is outside the bolt tongue or
}
The escape or auxiliary release has been operated or
}
The guard locking element is not engaged in the bolt tongue.
If the safety outputs have been shut down by either of the inputs X2-3 or X2-4, they cannot
be switched back on until both inputs are low simultaneously.
To operate the solenoid, a high signal must be present at X1-6 (X2-6) and at X1-7 (X2-7)
after the hazardous movement has been ended.
4.1
Unlock mode
The system is operate in Unlock mode:
The safety gate to the danger zone is unlocked when the hazardous machine is stopped.
This enables easier access for cleaning staff once the shift has ended, for example.
}
The guard locking element is disengaged from the bolt tongue as soon as the signal
status at terminals X1-6 and X1-7 or X2-6 and X2-7 switches from Low to High.
4.2
Escape release on swing gates and revolving gates
The escape release enables the guard locking to be manually released from within the
danger zone.
NOTICE
The escape release does not work on sliding gates. The PSEN sg2c may
only be used on sliding gates if the risk analysis shows that nobody can be-
come trapped in the danger zone.
