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Wiring
5.2
Guidelines for cable length
The max. cable length depends on the voltage drop at the cables to the safety switch. The
level of voltage drop is determined by:
}
the cable resistance,
}
the current of the device and the current load of the outputs.
If the minimum permitted supply voltage at the device connector falls below the minimum
permitted value (see
reliably. The "Lock" LED registers an error when guard locking.
Possible remedies:
}
Set supply voltage constantly to the upper tolerance range (see Technical details),
}
Select a higher conductor cross section.
}
Reduce load at the outputs, e.g. with evaluation device with semiconductor output.
}
Maximum length for single connection: 50 m
}
Maximum length in total for series connection: 30 m
}
The lengths of the individual cables L1 – L4 may be combined as required. Examples are
stated in the table.
Supply
voltage
[V]
24
24
24
5.3
Recommended cable cross sections
}
Cable type: LiYY 8 x 0.25 mm² (78 Ohm/km) from Pilz
If cable lengths greater than those stated are required, please contact Pilz.
Operating Manual PSEN sl2-IL1/2/3-P
1005909-EN-02
Technical details [
[1]
[2]
[3]
L1
L2
Number of
safety switches
1
max. 4
max. 4
52]), the locking magnet is no longer activated
[4]
[5]
L3
L4
L1
L2
L3
[m]
[m]
[m]
50
-
-
max. 27 1
1
5
10
5
L4
Overall length
[m]
[m]
-
50
1
30
10
30
| 25
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