PNOZ V
Operating Manual PNOZ V
21115-EN-07
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Wiring
Please note:
} Information given in the "Technical details [ 14]" must be followed.
} Outputs 13-14, 23-24 and 33-34 are instantaneous safety contacts, output 57-58 is a
delay-on de-energisation safety contacts, output 41-42 is an auxiliary contact (e.g. for dis-
play).
} Auxiliary contact 41-42 shouldnot be used for safety circuits!
} Do not connect undesignated terminals.
} To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [ 14]).
} Calculation of the max. cable length l
max
in the input circuit:
R
lmax
= max. overall cable resistance (see Technical details [ 14])
R
l
/km = cable resistance/km
} Use copper wiring with a temperature stability of 60/75 °C.
} To prevent EMC interferences (particularly common-mode interferences) the measures
described in EN60204-1 must be executed. This includes the separate routing of cables
of the control circuits (input, start and feedback loop) from other cables for energy trans-
mission or the shielding of cables, for example.
} Adequate protection must be provided on all output contacts with capacitive and inductive
loads.
} Do not switch low currents using contacts that have been used previously with high cur-
rents.
} The power supply must comply with the regulations for extra low voltages with protective
electrical separation (SELV, PELV) in accordance with VDE 0100, Part 410.
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