Datasheet

Relays for functional safety
Safety relays PNOZsigma
PNOZ s9
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
758
} Push the unit upwards or downwards before lifting it from the DIN rail.
Wiring
Please note:
} Information given in the "Technical details [ 761]" must be followed.
} Outputs 17-18, 27-28, 37-38 are safety contacts; output 45-46 is an auxiliary contact
(e.g. for display).
} Auxiliary contact 45-46 shouldnot be used for safety circuits!
} To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [ 761]).
} Calculation of the max. cable length l
max
in the input circuit:
R
lmax
R
l
/ km
I
max
=
R
lmax
= max. overall cable resistance (see Technical details [ 761])
R
l
/km = cable resistance/km
} Use copper wire that can withstand 60/75°C.
} Sufficient fuse protection must be provided on all output contacts with capacitive and in-
ductive loads.
} Ensure the wiring and EMC requirements of IEC 60204-1 are met.
} The power supply must comply with the regulations for extra low voltages with protect-
ive electrical separation (SELV, PELV) in accordance with VDE 0100, Part 410.
Preparing for operation
Operating modes and delay time
The operating mode and delay time are set via the rotary switches on the unit. You can do
this by opening the cover on the front of the unit.
Set operating modes
} Switch off supply voltage.
} Select operating mode via the operating mode selector switch "mode".
} If the operating mode selector switch "mode" is in its start position (vertical position), an
error message will appear.
operating mode
selector switch
"mode"
delay-on de-en-
ergisation, not
retriggerable
delay-on de-en-
ergisation, ret-
riggerable
delay-on ener-
gisation
pulse on switch-
ing on