PNOZ s1
Operating Manual PNOZ s1
21393-EN-07
5
Installation
Install base unit without contact expansion module:
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Ensure that the plug terminator is inserted at the side of the unit.
Connect base unit and PNOZsigma contact expansion module:
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Remove the plug terminator at the side of the base unit and at the contact expansion
module.
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Connect the base unit and the contact expansion module to the supplied connector be-
fore mounting the units to the DIN rail.
Installation in control cabinet
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The safety relay should be installed in a control cabinet with a protection type of at least
IP54.
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Use the notch on the rear of the unit to attach it to a DIN rail (35 mm).
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When installed vertically: Secure the unit by using a fixing element (e.g. retaining brack-
et or end angle).
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Push the device upwards or downwards before lifting it from the DIN rail.
Wiring
Please note:
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Information given in the "Technical details" must be followed.
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The outputs 13-14, 23-24 are safety contacts.
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Semiconductor output Y32 should
not
be used for safety circuits!
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To prevent contact welding, a fuse should be connected before the output contacts (see
technical details).
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Calculation of the max. cable length l
max
in the input circuit:
R
lmax
= max. overall cable resistance (see technical details)
R
l
/ km = cable resistance/km
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Use copper wire that can withstand 60/75 °C.
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Sufficient fuse protection must be provided on all output contacts with capacitive and in-
ductive loads.
