Activation Of Safety Inputs S31 And S41 (Solenoid Operation) - Pilz PSEN ml s 1.1 Operating Manual

Function description
}
Diagnostic input Y1
If a fieldbus module of the SDD is used, the diagnostic input Y1 is automatically activated
and data is read.
If no fieldbus module of the SDD is used, the diagnostic input Y1 must be connected to
24 V. In a series connection the signal output/diagnostic output Y32 must be connected in
series to the diagnostic input Y1 of the next sensor in the series connection.
}
Signal output/diagnostic output Y32
The status of the actuator is output. If a fieldbus module of the SDD is used, the signal
output/diagnostic output for the writing of data is activated.
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.
Single connection
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.
Series connection
In a series connection with n safety switches the guard locking is activated by a high signal
with a minimum duration of t = n * (350 - 400 ms) at the inputs S31 and S41 (solenoid oper-
ation).
Number of safety switches in
the series connection
1
2
3
4
5
6
After activation, the inputs must be low. Another pulse of the specified duration at these in-
puts deactivates guard locking.
Operating Manual PSEN ml s 1.1/2.1/2.2
1004710-EN-05
Pulse duration Lock/Unlock Request in ms
350
700
1050
1400
1750
2100
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