Activation Of Safety Inputs S31 And S41 (Solenoid Operation); Activation With Specification Of Direction; Activation Without Specification Of Direction - Pilz PSEN ml b 1.1 Operating Manual

Function description
4.2

Activation of safety inputs S31 and S41 (solenoid operation)

}
If there is a low signal at safety inputs S31 and S41, the guard locking pin does not
change its position.
}
Guard locking may only be deactivated once the hazardous movement has been com-
pleted.
Active use of Safety Device Diagnostics
}
The safety inputs S31 and S41 have a high signal within max. 500 ms after the receipt of
the guard locking activation.
Guard locking is activated through a high signal (duration 350 - 400 ms) at inputs S31 and
S41 (solenoid operation). After activation, the inputs must be low. Another pulse (duratiion
350 - 400 ms) at these inputs deactivates guard locking.
4.2.1

Activation with specification of direction

}
The guard locking is activated when the time between the rising edges from S31 to S41 is
between 40 ms and 500 ms (S31 before S41).
}
The guard locking is deactivated when the time between the rising edges from S31 to
S41 is between 40 ms and 500 ms (S41 before S31).
Legend
4.2.2

Activation without specification of direction

}
The guard locking changes its state when the time between the rising edges from S31
and S41 < 20 ms.
Operating Manual PSEN ml b 1.1/2.1/2.2, PSEN ml DHM
1005444-EN-02
Activation
Guard locking
Deactivation
Guard locking
t Maximum time between the rising edges from S31 and S42
max
S31
S41
t
max
S31
S41
t
max
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