PNOZ X2.1C
Operating Manual PNOZ X2.1C
1003973-EN-07
9
Timing diagram
[1]
[2]
Legend
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Power: Supply voltage
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Start: Start circuit
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Input: Input circuit
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Output safe: Safety contacts
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[1]: Automatic start
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[2]: Manual start
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a: Input circuit closes before start circuit
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b: Start circuit closes before input circuit
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t
1
: Switch-on delay
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t
2
: Delay-on de-energisation
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t
3
: Recovery time
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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Information given in the "
Technical details [
13]
" must be followed.
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The outputs 13-14, 23-24 are safety contacts.
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To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [
13]
).
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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
Technical details [
13]
)
R
l
/ km = cable resistance/km
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Use copper wire that can withstand 60/75 °C.
