Datasheet

Relays for functional safety
Safety relays PNOZ X
PSWZ X1P
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
523
Wiring
Please note:
} Information given in the "Technical details [ 527]" must be followed.
} Outputs 13-14, 23-24 are safety contacts, the output 41-42 is an auxiliary contact (e.g.
for display).
} Auxiliary contact 41-42 shouldnot be used for safety circuits!
} To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [ 527]).
} 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 [ 527])
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.
} Do not switch low currents using contacts that have been used previously with high cur-
rents.
} Ensure the wiring and EMC requirements of IEC 60204-1 are met.
} When used with converters: Please comply with the information regarding installation
and wiring in the documentation of the converter. Use screened cable for the wiring
between the PSWZ X1P and the motor. Connect the cable screening on the motor.
} Protect the measuring circuits according to the conductor cross section.
} Single-phase motor: Connect terminal L1 directly to motor connection terminal L, and
terminal L3 directly to motor connection terminal N. Connect terminal L2 directly to the
element that switches the motor on (contactor, converter, etc.). Separate cables with
separate insulation should be used for the measuring voltages L1 and L2. The cables
should also be physically separate.
} Three-phase motor: Connect the connection terminals L1, L2 and L3 directly to the mo-
tor connection terminals L1, L2 and L3.
} Do not connect the terminals labelled "*".