Pilz PSEN ml b 1.1 - Activation of safety inputs S31 and S41 (solenoid operation)

Function description
Operating Manual PSEN ml b 1.1/2.1/2.2
1003884-EN-12
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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).
S31
S41
t
max
Guard locking
S31
S41
t
max
Guard locking
Activation
Deactivation
Legend
t
max
Maximum time between the rising edges from S31 and S42
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.