PNOZ X7.1
Operating Manual PNOZ X7.1
21003-EN-06
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Installation
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The unit 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 bracket
or end angle).
Wiring
Please note:
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" must be followed.
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Output 13-14 is a safety contact, output 21-22 is an auxiliary contacts (e.g. for display).
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Auxiliary contact 21-22 should
not
be used for safety circuits!
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Do not connect undesignated terminals.
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To prevent contact welding, a fuse should be connected before the output contacts (see
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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
)
R
l
/ km = cable resistance/km
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Use copper wiring with a temperature stability of 60/75 °C.
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To prevent EMC interferences (particularly common-mode interferences) the measures
described in EN 60204-1 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.
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Adequate protection must be provided on all output contacts with capacitive and inductive
loads.
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Do not switch low currents using contacts that have been used previously with high cur-
rents.
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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.
